factual_correctness int64 | groundedness int64 | question_relevance int64 | answer_quality int64 | technical_accuracy int64 | overall_score int64 | decision string | reason string | question string | answer string | global_id string | paper_id string | paper_title string | paper_year int64 | paper_url string | downloaded_paper_name string | chunk_id null | section string |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer accurately explains the mechanism described in the source (sodium carbonate causing softening and compaction at high temperatures) to explain the reduction in pore formation and thermal performance. | Why does baking powder, a strong chemical foaming agent, result in lower thermal performance and fewer pores in porous ceramic materials at higher temperatures? | At higher temperatures, sodium carbonate from the baking powder reaction causes the particles to soften and compact more tightly, which reduces the likelihood of pore formation and consequently decreases insulation capabilities. | chunk_0069 | 221f1f795bedf66d6468eb5e71f77f0588fd1eaf | Effect of biological and agricultural foaming agents on concrete waste for the preparation of porous ceramic materials | 2,026 | https://www.semanticscholar.org/paper/221f1f795bedf66d6468eb5e71f77f0588fd1eaf | 221f1_Effect_of_biological_and_agricultural_foaming_agents_on_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is highly relevant and specific to the source text, and the answer accurately and completely reflects the explanation provided in the source regarding the behavior of the concrete when OPBF exceeds 2.5%. | In rice husk ash (RHA)–blended concrete, how does the incorporation of RHA as a supplementary cementitious material influence the compressive strength of oil palm broom fiber (OPBF) reinforced mixes when the fiber content exceeds the optimum level of 2.5%? | When the OPBF content exceeds 2.5%, the amount of RHA is insufficient to fill the micro voids around the fibers, causing the fiber-matrix bond to become concentrated in certain areas. This creates heterogeneity in strength and weak zones, which ultimately decreases the overall compressive strength. | chunk_1960 | f4e6ec51106631c2ca20e47736416bd0b4dc37b7 | Effect of Oil Palm Broom Fiber on the Mechanical Properties of Rice Husk Ash–Blended Concrete | 2,025 | https://www.semanticscholar.org/paper/f4e6ec51106631c2ca20e47736416bd0b4dc37b7 | f4e6e_Effect_of_Oil_Palm_Broom_Fiber_on_the_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly answerable from the text, and the answer accurately reflects the numerical value and the mechanism described in the source chunk without adding outside information. | How does the fracture energy of lightweight aggregate crumb rubber concrete composites change when the polypropylene fiber content is increased from 0.2% to 0.6%, and what is the mechanism attributed to this improvement? | The fracture energy increases by more than 3.0, as the fibers delay crack propagation and prevent rapid failure, which enhances the load-carrying capability of the beams. | chunk_1456 | 9e1b1676993703789206d17b704a047575c3447f | The Effect of Polypropylene Fibers on the Fracture Characteristics of Lightweight Aggregate Crumb Rubber Concrete Composites | 2,023 | https://www.semanticscholar.org/paper/9e1b1676993703789206d17b704a047575c3447f | 9e1b1_The_Effect_of_Polypropylene_Fibers_on_the_Fracture_2023 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source chunk. The answer directly addresses the 'probable cause' mentioned in the text, and the numerical values in the question (85 mm to 50 mm and w/c ratio of 0.4) are accurately extracted from the source. Note: While the source does not explicitly name the ash ... | What is the probable cause for the reduction in slump of fresh concrete from 85 mm to 50 mm when 10% cassava peel ash is added, despite maintaining a constant water/cement ratio of 0.4? | The decrease is probably due to increased water absorption or viscosity caused by the 0.075 mm fine particles of the ash. | chunk_2587 | f1fd4b28a2f9b42f28c12e08a0b1fd971caa8d73 | Valorization of agricultural waste: Pozzolanic properties of cassava peel ash and effects on the durability of cementitious materials | 2,026 | https://www.semanticscholar.org/paper/f1fd4b28a2f9b42f28c12e08a0b1fd971caa8d73 | f1fd4_Valorization_of_agricultural_waste:_Pozzolanic_properties_of_cassava_2026 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The definition of 'x' is extracted accurately without any external information or errors. | In concrete mixtures labeled with the notation 'x-y-zm-ln', what specific parameter does the variable 'x' represent, and how is it defined? | The variable 'x' represents the water-to-binder ratio, which is defined as the ratio of effective water to the total mass of the three binders. | chunk_0311 | 1dfc8957720cbe4e078e1fa5032d972a14b7e04f | Mechanical, workability, economic and environmental properties of concrete with limestone calcined clay cement and recycled aggregates | 2,025 | https://www.semanticscholar.org/paper/1dfc8957720cbe4e078e1fa5032d972a14b7e04f | 1dfc8_Mechanical,_workability,_economic_and_environmental_properties_of_concrete_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is well-structured and directly addresses specific data points and mechanisms provided in the source. The answer is precise, accurately reflects the numerical values (21% enhancement for 100% RCA), and correctly explains the chemical/physical mechanism (reduction of porosity, ITZ improvement, and C-S-H gel... | What is the mechanism by which the combined treatment of mechanical grinding and slurry coating enhances the compressive strength of recycled aggregate concrete, and what was the specific strength enhancement percentage observed for 100% recycled aggregate incorporation under this treatment? | The combined treatment addresses the high water absorption of recycled aggregate by reducing porosity and improving the interfacial transition zone (ITZ). The silica-rich pozzolanic materials in the treatment react with free calcium hydroxide from the adhered mortar to form a dense coating of hydrated C-S-H gel, which ... | chunk_0619 | 13d08b3cdd4be44fe88c5fbde73ecd6bb84827aa | An innovative approach to enhancing the strength and durability of recycled aggregate concrete through fly ash-silica fume coating and rice husk ash supplementation | 2,025 | https://www.semanticscholar.org/paper/13d08b3cdd4be44fe88c5fbde73ecd6bb84827aa | 13d08_An_innovative_approach_to_enhancing_the_strength_and_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer accurately describes the basis of the calculation and the assumption behind the stoichiometric coefficient as provided in the text. | How is the CO2 emission factor for biomass calculated, and what does the stoichiometric coefficient of 3.664 represent in this calculation? | The CO2 emission factor is calculated based on the amount of carbon in the fuel at the lower heat value of the fuel. The stoichiometric coefficient of 3.664 is used in the calculation, assuming that all carbon from the biomass is completely oxidized and converted into CO2. | chunk_0602 | 195e2d14a77242e028bba5212e81f8e03ec911f6 | Energy and emission properties of burley tobacco stalk briquettes and its combinations with other biomass as promising replacement for coal | 2,023 | https://www.semanticscholar.org/paper/195e2d14a77242e028bba5212e81f8e03ec911f6 | 195e2_Energy_and_emission_properties_of_burley_tobacco_stalk_2023 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer directly addresses the implication of the specific gravity values as stated in the provided chunk. | What does the specific gravity values of 2.65 for fine aggregate and 2.60 for natural aggregate indicate regarding their suitability for concrete production? | These values fall within the 2.6 to 2.7 limits for natural aggregates, implying that both fine aggregate and natural aggregate can be conveniently used for concrete production. | chunk_0407 | 9af444440a1ac15b99e85f023a0c6a62859c65fd | EXPERIMENTAL STUDY ON STEEL FIBRE REINFORCED NATURAL AGGREGATE CONCRETE | 2,024 | https://www.semanticscholar.org/paper/9af444440a1ac15b99e85f023a0c6a62859c65fd | 9af44_EXPERIMENTAL_STUDY_ON_STEEL_FIBRE_REINFORCED_NATURAL_AGGREGATE_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source chunk, and the answer accurately reflects the specific mechanism described in the text (the hydrophobic nature of crumb rubber providing resistance to acid) to explain the observed trend. | Why does increasing the replacement of fine aggregates with crumb rubber reduce the percentage loss of compressive strength in concrete mixed and cured with peat water? | The hydrophobic nature of crumb rubber causes it to absorb barely any water, making it highly resistant against the corrosive effects of acid from peat water. | chunk_2836 | 294d755c30dcfd69dbbdaec802606e410396c7e7 | Properties of Concrete Containing Crumb Rubber and Rice Husk Ash Mixing with Peat Water | 2,025 | https://www.semanticscholar.org/paper/294d755c30dcfd69dbbdaec802606e410396c7e7 | 294d7_Properties_of_Concrete_Containing_Crumb_Rubber_and_Rice_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The numerical values for the range (2 to 64 MPa) and the average (30.6 MPa) are extracted accurately from the section describing the 510 collected data points. | What is the range and average compressive strength of the 510 fly ash-based geopolymer concrete data points collected from literature studies? | The compressive strength of the fly ash-based geopolymer concrete specimens ranged from 2 to 64 MPa, with an average of 30.6 MPa. | chunk_1320 | 2f7820604ffaf5b30e8d6daaf52a6b5b6fe1cfce | Systematic multiscale models to predict the compressive strength of fly ash-based geopolymer concrete at various mixture proportions and curing regimes | 2,021 | https://www.semanticscholar.org/paper/2f7820604ffaf5b30e8d6daaf52a6b5b6fe1cfce | 2f782_Systematic_multiscale_models_to_predict_the_compressive_strength_2021 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly derived from the source text, and the answer accurately and completely reflects the explanation provided in the source regarding the limitations of the initial linear regression model. | Why is a linear regression model that only includes the liquid-to-binder ratio considered insufficient for predicting the compressive strength of fly ash-based geopolymer concrete (FA-GPC)? | It is insufficient because it does not include other components of FA-GPC mixtures that influence compressive strength, such as the curing regime and time, and different mix proportions. | chunk_1304 | 2f7820604ffaf5b30e8d6daaf52a6b5b6fe1cfce | Systematic multiscale models to predict the compressive strength of fly ash-based geopolymer concrete at various mixture proportions and curing regimes | 2,021 | https://www.semanticscholar.org/paper/2f7820604ffaf5b30e8d6daaf52a6b5b6fe1cfce | 2f782_Systematic_multiscale_models_to_predict_the_compressive_strength_2021 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is well-grounded in the provided table, and the answer accurately extracts and compares the specific numerical values for the 28-day compressive strength of the SCC and SCCR mixes. | How does the 28-day compressive strength of self-compacting concrete (SCC) compare to that of the self-compacting rubberized concrete mix SCCR, and what are the specific values reported? | The 28-day compressive strength of SCC is 59.3 MPa, which is significantly higher than the 32 MPa reported for the SCCR mix. | chunk_2388 | d0115f08fb69ff062690d13fbc967976f2d8a76a | Effects of density and strength on dynamic modulus of elasticity for self-compacting rubberized concrete containing recycled brick aggregate | 2,026 | https://www.semanticscholar.org/paper/d0115f08fb69ff062690d13fbc967976f2d8a76a | d0115_Effects_of_density_and_strength_on_dynamic_modulus_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source text, and the answer accurately reflects the specific scientific explanation provided in the text regarding packing density, interparticle interaction, and void reduction. | Why do concrete mixes incorporating multiple steel slag particle sizes (Mixes 5, 6, 7, and 26) demonstrate higher overall compressive strengths compared to mixes containing only a single size fraction of steel slag aggregates? | The higher compressive strengths in mixes with multiple steel slag sizes are attributed to enhanced packing density and better interparticle interaction, which reduce void content and improve load transfer efficiency, resulting in a denser internal structure. | chunk_2561 | 981ecbf382aa764711e6b824173044cf0140f104 | Enhancing strength and sustainability of concrete with steel slag aggregate | 2,025 | https://www.semanticscholar.org/paper/981ecbf382aa764711e6b824173044cf0140f104 | 981ec_Enhancing_strength_and_sustainability_of_concrete_with_steel_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly derived from the source, and the answer accurately and completely reflects the explanation provided in the text regarding the necessity of oven curing for pure PA-based mixes versus the ambient curing capability enabled by lime sludge. | Why does the mix containing 100% pond ash (LSGC0) exhibit poor split tensile strength under ambient curing conditions compared to mixes containing lime sludge? | The poor performance of the 100% pond ash mix is likely due to its inability to achieve sufficient strength without an external energy source, as pure pond ash-based geopolymer concrete typically requires a minimum of 24 hours of oven curing at elevated temperatures to initiate polymerization. In contrast, the introduc... | chunk_0503 | 9016d74368f5b68ecc65386e374d98dda40c8ab1 | Effect of Lime Sludge Addition on Mechanical and Microstructural Properties of Pond Ash Based Geopolymer Concrete | 2,025 | https://www.semanticscholar.org/paper/9016d74368f5b68ecc65386e374d98dda40c8ab1 | 9016d_Effect_of_Lime_Sludge_Addition_on_Mechanical_and_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source chunk, and the answer accurately and precisely describes the mechanism explained in the text regarding the effect of steel fibers on Poisson's ratio. | What is the primary mechanism by which increasing the content of stiff steel fibers in recycled-aggregate concrete leads to an increase in its Poisson's ratio? | Stiff steel fibers confine the transverse expansion of the concrete matrix under loading, which results in higher transverse contraction strains relative to longitudinal extension strains, thereby escalating the Poisson's ratio. | chunk_1779 | 80e1422cd253a5fb0d29f24287b14ffdd82603dd | A comprehensive quantitative bottom-up analysis of fiber-reinforced recycled-aggregate concrete behavior | 2,023 | https://www.semanticscholar.org/paper/80e1422cd253a5fb0d29f24287b14ffdd82603dd | 80e14_A_comprehensive_quantitative_bottom-up_analysis_of_fiber-reinforced_recycled-aggregate_2023 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question asks for the reasoning behind the selection of specific functions, and the answer directly and accurately reflects the explanation provided in the source text ('These functions are chosen to keep the resulting equation simple'). | Why were addition, multiplication, subtraction, division, and square root functions selected as the linking and arithmetic operations for the Gene Expression Programming (GEP) model? | These functions were chosen to keep the resulting equation simple. | chunk_0459 | 969ffe514bcf0a5594aaab9e6f75e1485479c042 | Predicting 28-day compressive strength of fibre-reinforced self-compacting concrete (FR-SCC) using MEP and GEP | 2,024 | https://www.semanticscholar.org/paper/969ffe514bcf0a5594aaab9e6f75e1485479c042 | 969ff_Predicting_28-day_compressive_strength_of_fibre-reinforced_self-compacting_concrete_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The numerical values for standard deviation are correctly extracted, and the interpretation of the material's behavior (consistent and predictable) is directly supported by the source. | How does the standard deviation of compressive strength for concrete with 5% banana peel ash (BPA) addition compare to that of concrete with 0% BPA, and what does this indicate about the material's behavior? | The standard deviation for concrete with 5% BPA addition narrowed between 0.9326 and 0.9416, compared to 1.756 to 3.200 for 0% BPA, indicating more consistent and predictable behavior. | chunk_0753 | fc89fae893548cf8ed6900600a1f7a426159ac00 | Green Concrete Innovation: Incorporation of Banana Peel Ash for Special Concrete | 2,026 | https://www.semanticscholar.org/paper/fc89fae893548cf8ed6900600a1f7a426159ac00 | fc89f_Green_Concrete_Innovation:_Incorporation_of_Banana_Peel_Ash_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source chunk, and the answer is a precise, verbatim extraction of the relevant finding regarding bootstrap resampling. All technical details are accurate according to the text. | What does the observation of relatively stable prediction errors and narrow confidence intervals from bootstrap resampling suggest about the performance of the hybrid machine learning model for palm oil fuel ash concrete? | It suggests that the model performance was not dominated by a particular subset of the heterogeneous dataset. | chunk_2723 | 4d0292c49824ee63c9c4118977472a3ac666bc5e | Hybrid machine learning approach for predicting compressive strength of sustainable concrete incorporating palm oil fuel ash | 2,026 | https://www.semanticscholar.org/paper/4d0292c49824ee63c9c4118977472a3ac666bc5e | 4d029_Hybrid_machine_learning_approach_for_predicting_compressive_strength_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is well-structured and directly addresses specific mechanisms mentioned in the text. The answer is precise, complete, and perfectly grounded in the source chunk without adding outside information. | What mechanism is attributed to the decrease in compressive strength of recycled aggregate concrete (RAC) as the recycled aggregate replacement ratio increases, and how does the presence of adhered mortar contribute to this effect? | The decrease in compressive strength is attributed to the weaker Interfacial Transition Zones (ITZ) in RAC. Additionally, the presence of adhered mortar on the recycled aggregate promotes the formation of numerous micropores and cracks, which may affect the mechanical performance. | chunk_2666 | 94692bc321794263b53e52093f620e0d041da129 | Experimental Investigation on the Behavior of Recycled Concrete incorporating Date Palm Fibers | 2,025 | https://www.semanticscholar.org/paper/94692bc321794263b53e52093f620e0d041da129 | 94692_Experimental_Investigation_on_the_Behavior_of_Recycled_Concrete_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. All dimensions, temperature values, and humidity percentages are accurately extracted and reported without any errors or unsupported inferences. | What were the dimensions of the cylindrical and prismatic specimens cast for compressive/split tensile and flexural strength testing, respectively, and what were the specific temperature and relative humidity conditions for the 28-day curing phase? | The cylindrical specimens had a diameter of 150 mm and a height of 300 mm, while the prismatic RILEM beam specimens had a width of 150 mm, a depth of 150 mm, and a length of 600 mm. The specimens were cured for 28 days in a steam-curing room at 20 ± 2°C and 95% relative humidity. | chunk_1579 | 01cf01f9d195bb476ca904408e487247a1466e38 | Investigating the Mechanical Properties of Natural Fiber-Reinforced Concrete with Kenaf, Jute, and Coconut Fibers | 2,024 | https://www.semanticscholar.org/paper/01cf01f9d195bb476ca904408e487247a1466e38 | 01cf0_Investigating_the_Mechanical_Properties_of_Natural_Fiber-Reinforced_Concrete_2024 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer directly and accurately extracts the stated purpose of the microsteel fibers as described in the provided chunk. | What is the stated purpose of using straight microsteel fibers with a diameter of 0.3 mm and a length of 13 mm in the steel fiber concrete mix? | The fibers are used to enhance the shear resistance and improve the durability of the steel fiber concrete mix. | chunk_1870 | c3477ba5d336c26f44d5e68eb35efa8840e1ddc0 | Hybrid Curved Precast Deep Beams Composed Partially from Concrete Made with Recycled Concrete Aggregate | 2,023 | https://www.semanticscholar.org/paper/c3477ba5d336c26f44d5e68eb35efa8840e1ddc0 | c3477_Hybrid_Curved_Precast_Deep_Beams_Composed_Partially_from_2023 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question accurately targets a specific data point within the complex table, and the answer correctly extracts the 'Overall Mean' and '% Increase in Void Content' for the specified parameters (0.4 w/c ratio, 30% laterite, 30% PKS). | In palm kernel shell laterized concrete with a water-cement ratio of 0.4, what is the overall mean void factor and the corresponding percentage increase in void content for the mix containing 30% laterite replacement and 30% palm kernel shell replacement? | The overall mean void factor is 135.7, representing a 35.7% increase in void content compared to the reference mix. | chunk_1411 | 43e9d95cfccd248c506f8a28adb3f1eecc0be1a8 | Void content and initial surface absorption of palm kernel shell laterized concrete | 2,026 | https://www.semanticscholar.org/paper/43e9d95cfccd248c506f8a28adb3f1eecc0be1a8 | 43e9d_Void_content_and_initial_surface_absorption_of_palm_2026 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The pH value and the reasoning for selecting the synthetic foaming agent are both accurately extracted from section 2.1.5. | What is the pH value of the synthetic foaming agent used to produce stable foam for foamed concrete, and what property of this agent was cited as the reason for its selection? | The synthetic foaming agent has a pH value of 7.07 and was selected because its high density imparts high strength to the foamed concrete. | chunk_0293 | d0e517a6215b4119968e891140d621d9ccd2b69d | Foamed Concrete using Red Gypsum and Palm Oil Fuel Ash: A Sustainable Building Material | 2,023 | https://www.semanticscholar.org/paper/d0e517a6215b4119968e891140d621d9ccd2b69d | d0e51_Foamed_Concrete_using_Red_Gypsum_and_Palm_Oil_2023 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly derived from the source text, and the answer accurately and precisely reflects the specific numerical values and procedures (compactive effort, number of layers, and blows per layer) provided in the source chunk. | What specific compactive effort and layering procedure were used in the Standard Proctor test to determine the relationship between moisture content and dry density for the soil samples? | The Standard Proctor test was performed with a compactive effort of 600 kN-m/m³, and the soil samples were compacted in three layers, with each layer receiving 27 blows. | chunk_2506 | 96a3bd3b1ecdd20f008faf994f84a41d372b10a5 | Performance Evaluation of Red Clay Soils stabilized with Bluegum Sawdust Ash and Sisal Fiber as Low-Volume Road Sub-base Materials | 2,024 | https://www.semanticscholar.org/paper/96a3bd3b1ecdd20f008faf994f84a41d372b10a5 | 96a3b_Performance_Evaluation_of_Red_Clay_Soils_stabilized_with_2024 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source chunk, and the answer accurately and precisely details the pre-treatment steps (sieving, washing with specific ratio, and drying) as described in the text. | What pre-treatment process was applied to the wood ash derived from African Birch (Anogeissus Leiocarpa) logs before it was used as a partial cement replacement in concrete? | The wood ash was sieved using a 75 µm (200 mesh) sieve, washed in a liquid/solid ratio of 5 using potable water, and then dried. | chunk_1564 | 0997b02c00ed6565efa3bd983ece8dca356e3faf | Effectiveness of Partial Replacement of Wood Ash in Concrete Production Using Pebbles as Coarse Aggregates | 2,025 | https://www.semanticscholar.org/paper/0997b02c00ed6565efa3bd983ece8dca356e3faf | 0997b_Effectiveness_of_Partial_Replacement_of_Wood_Ash_in_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source, and the answer accurately reflects the specific mechanisms (workability, clustering, dispersion, bonding, and voids) described in the text for the decline in strength at high fibre content. | In coconut shell ash (CSA)-blended concrete, what mechanism explains the decline in compressive strength when the coconut fibre content exceeds 0.50%? | The decrease in compressive strength is attributed to poor workability, fibre clustering, and uneven dispersion, which result in weaker interfacial bonding and an increased number of voids in the matrix. | chunk_0103 | e2c7389487ada8392b8e584740abb7cbacb794fc | Development of environmentally friendly fibre reinforced concrete using agricultural byproduct as a cement substitute to reduce the ecological footprint of cement | 2,025 | https://www.semanticscholar.org/paper/e2c7389487ada8392b8e584740abb7cbacb794fc | e2c73_Development_of_environmentally_friendly_fibre_reinforced_concrete_using_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source chunk, and the answer accurately reflects the numerical values and relationships provided for the specific mix proportion and SiO2/Na2O ratios. | For geopolymer concrete with a composition of 160 kg fly ash, 120 kg bauxite, and 120 kg eggshell, how does the compressive strength at 7 days vary between a SiO2/Na2O ratio of 0.6 and a ratio of 1.5? | The compressive strength is 8 MPa at a SiO2/Na2O ratio of 0.6 and increases to 12 MPa at a SiO2/Na2O ratio of 1.5. | chunk_2373 | a358ed525cdbf62c7dcfd657d1d68512f190ab95 | Study of the Morphological Characteristics of Geopolymer concrete based on Eggshell and Bauxite powder | 2,023 | https://www.semanticscholar.org/paper/a358ed525cdbf62c7dcfd657d1d68512f190ab95 | a358e_Study_of_the_Morphological_Characteristics_of_Geopolymer_concrete_2023 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are excellent. The answer directly addresses the question using specific numerical evidence and technical interpretations (overfitting vs. generalization) provided in the source text. All values (0.0432, 0.5001, 0.1414, 0.1909, and 61.83%) are perfectly accurate according to the source. | What does the comparison of Mean Absolute Error (MAE) between the LSSVR(A) model and the XGB model indicate about their respective generalization capabilities in predicting the flexural strength of fiber-reinforced rubberized recycled aggregate concrete? | The XGB model exhibits overfitting, indicated by a very small training MAE (0.0432) contrasted with a much larger testing MAE (0.5001). In contrast, the LSSVR(A) model demonstrates better generalization and operational reliability due to its balanced training and testing errors (0.1414 and 0.1909, respectively), with t... | chunk_1857 | 3b0cdeca091590cc51aea2af89495acaa17fe533 | Assessment of fiber-reinforced rubberized recycled aggregate concrete’s properties by optimal regression frameworks | 2,025 | https://www.semanticscholar.org/paper/3b0cdeca091590cc51aea2af89495acaa17fe533 | 3b0cd_Assessment_of_fiber-reinforced_rubberized_recycled_aggregate_concrete’s_properties_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are excellent. The answer accurately extracts the specific percentages, the significance levels (P < 0.05), and the interpretation of the relationship (primarily linear) directly from the source text. All technical details are correctly represented. | What does the response surface regression analysis indicate about the primary contributors to the variation in Maximum Dry Density (MDD) of black cotton soil stabilized with lime and waste glass powder, and what does the significance of the linear effects suggest about the relationship between these variables and MDD? | The analysis indicates that the linear effects of waste glass powder (WGP) and lime (BCL) are the primary contributors, accounting for 72.43% and 17.47% of the variation in MDD, respectively. The statistical significance of these linear effects (P < 0.05) and the non-significance of quadratic and interaction terms sugg... | chunk_1745 | 9499aefa7cf6dfeb3fc7508dd85c52ef3ba7b13d | Optimization of green concrete properties using ceramic and GGBS waste | 2,026 | https://www.semanticscholar.org/paper/9499aefa7cf6dfeb3fc7508dd85c52ef3ba7b13d | 9499a_Optimization_of_green_concrete_properties_using_ceramic_and_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source chunk. The numerical values (0.625 kg/block, 12.5% reduction) and the qualitative interpretation regarding economic impact and resource efficiency are all directly and accurately supported by the text. | In concrete production for interlocking pavement blocks, what is the specific cement consumption per block for mixtures containing 8% or 10% textile sludge, and what does the resulting reduction in binder consumption indicate regarding the economic impact of the production process? | The specific cement consumption is 0.625 kg per block for mixtures with 8% and 10% textile sludge. This represents a reduction of up to 12.5% compared to the control, which is significant because binder is the component with the greatest economic impact on concrete cost, thereby aligning with resource-efficient managem... | chunk_2862 | 2390bfdd7310bd095ed55e509b7d0d1d4a3f9bc2 | Sustainable Use of Textile Sludge as an Alternative Aggregate in the Production of Concrete for Interlocking Pavement | 2,025 | https://www.semanticscholar.org/paper/2390bfdd7310bd095ed55e509b7d0d1d4a3f9bc2 | 2390b_Sustainable_Use_of_Textile_Sludge_as_an_Alternative_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly derived from the source text, and the answer accurately and concisely reflects the information provided regarding the energy absorption properties of the straw admixtures. | What does the absence of obvious brittle fracture in wheat straw fly ash concrete (WSC) during compression indicate about the role of powdered and striped straw compared to ordinary concrete? | It indicates that the powdered and striped straw can absorb and consume part of the energy, preventing the same brittle damage observed in ordinary concrete. | chunk_0025 | 2064b836b4de5169d78b9f19c24fe631d1af5195 | RESEARCH ON HEAT TRANSFER MECHANISM AND THERMAL PERFORMANCE OF WHEAT STRAW FLY ASH CONCRETE | 2,025 | https://www.semanticscholar.org/paper/2064b836b4de5169d78b9f19c24fe631d1af5195 | 2064b_RESEARCH_ON_HEAT_TRANSFER_MECHANISM_AND_THERMAL_PERFORMANCE_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The source explicitly states that as the CWP ratio increased, the analytical and experimental results diverged, pointing out that the equation needs to be developed for CWP-added concretes. The answer is precise and directly addresses the implication r... | What does the divergence between analytical and experimental shear capacity results for reinforced concrete beams as the ceramic waste powder (CWP) ratio increases indicate about the applicability of standard empirical formulas? | It indicates that the standard empirical equation needs to be developed specifically for the analytical calculations of CWP-added concretes. | chunk_1150 | ae4da3f83655733201ede017c38a846fbd1222c7 | Influence of ceramic waste powder on shear performance of environmentally friendly reinforced concrete beams | 2,024 | https://www.semanticscholar.org/paper/ae4da3f83655733201ede017c38a846fbd1222c7 | ae4da_Influence_of_ceramic_waste_powder_on_shear_performance_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question accurately reflects the information provided in the text regarding the modeling of parameters a and b. The answer correctly synthesizes the two-step modeling process described: first, a and b are fitted as quadratic functions of γ, and second, the coefficients of those functions (A, B, and C) are determine... | How are the parameters a and b, which define the relationship between relative dynamic elastic modulus and the number of freeze-thaw cycles, mathematically modeled in relation to the recycled aggregate substitution rate γ and steel fiber content θ? | The parameters a and b are fitted as a quadratic function with the recycled aggregate substitution rate γ, where the coefficients of this quadratic function are themselves determined by regression analysis of the steel fiber content θ. | chunk_2430 | e709e4e27fe62128e7baebf5ac9a749c0f7a7eb3 | Frost resistance investigation of fiber reinforced recycled brick aggregate cementitious materials | 2,022 | https://www.semanticscholar.org/paper/e709e4e27fe62128e7baebf5ac9a749c0f7a7eb3 | e709e_Frost_resistance_investigation_of_fiber_reinforced_recycled_brick_2022 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly answerable from the source, and the answer accurately reflects the volumetric rates and the source of the ceramic waste as stated in the text. | What were the volumetric replacement rates of natural coarse aggregate by recycled ceramic waste aggregate in the concrete mixtures, and what was the source of the ceramic waste? | The recycled ceramic waste aggregate replaced the natural coarse aggregate at volumetric rates of 0%, 25%, 50%, and 75%. The ceramic waste consisted primarily of unused ceramic wall tiles obtained from manufacturing waste and defects of ceramic tile production from a warehouse in Mosul. | chunk_0684 | 162135d6ea692b1136bf388560ba40f07254211e | Influence of Ceramic Wastes as a Recycled Coarse Aggregate with Different Maximum Sizes on the Concrete | 2,024 | https://www.semanticscholar.org/paper/162135d6ea692b1136bf388560ba40f07254211e | 16213_Influence_of_Ceramic_Wastes_as_a_Recycled_Coarse_2024 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the provided data table. The answer correctly identifies the row (S/n 10) with the maximum flexural strength (10.36 MPa) and accurately lists all corresponding material components. | In the central composite design optimization of cassava peel ash concrete, which specific mix composition achieved the highest recorded flexural strength, and what was that strength value? | The mix containing 4.90 kg of OPC, 2.14 kg of CPA, 8.89 kg of fine aggregate, and 12.87 kg of coarse aggregate achieved the highest flexural strength of 10.36 MPa. | chunk_1106 | 626327ba0fc0aeae9342cbb4b58c26d5731b55a0 | Optimization of cassava peel ash concrete using central composite design method | 2,024 | https://www.semanticscholar.org/paper/626327ba0fc0aeae9342cbb4b58c26d5731b55a0 | 62632_Optimization_of_cassava_peel_ash_concrete_using_central_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer directly addresses both parts of the question (the reason for normalization and the specific algorithm mentioned) using the exact information provided in the source chunk. | Why were input features normalized to a common scale during the training of machine learning models for coconut shell aggregate concrete, and which specific algorithm was highlighted as being sensitive to data range? | Input features were normalized to a common scale to enhance model stability, particularly for data range sensitive algorithms such as Support Vector Regression (SVR). | chunk_0826 | d39305c5dd117af5812857c02fc4a17b03eccc85 | Strength and microstructural improvement of silica fume-modified coconut shell aggregate concrete using machine learning analysis | 2,026 | https://www.semanticscholar.org/paper/d39305c5dd117af5812857c02fc4a17b03eccc85 | d3930_Strength_and_microstructural_improvement_of_silica_fume-modified_coconut_2026 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the text, and the answer accurately reflects the specific mechanism (enhancement of C-S-H gel formation) mentioned in the source chunk. | What is the proposed mechanism by which the alkaline characteristic of red mud contributes to the increase in splitting tensile strength observed in concrete mixes B3 and B4? | The alkaline characteristic of red mud enhances the formation of C-S-H gels, which leads to an increase in the splitting tensile strength. | chunk_1527 | b2a6e6e2c5731d2e5eb2a318c7e4325fecd8c85b | Fresh and hardened concrete properties containing red mud and silica fume | 2,023 | https://www.semanticscholar.org/paper/b2a6e6e2c5731d2e5eb2a318c7e4325fecd8c85b | b2a6e_Fresh_and_hardened_concrete_properties_containing_red_mud_2023 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are excellent. The question correctly extracts specific numerical data from the text to form a meaningful inquiry, and the answer accurately interprets the relationship described in the source (that low replacement levels are comparable to control, while higher levels cause significant decreases... | What does the significant decrease in compressive strength by 14.65% at 28 days for concrete mixes with 15% sewage sludge ash (SSA) replacement, compared to minimal decreases of 1.05% and 1.20% at 5% and 10% replacement levels, indicate about the effect of SSA dosage on early-age strength? | The significant strength reduction at 15% SSA replacement indicates that while low replacement levels (5% and 10%) result in strength values similar to the control mix, higher replacement levels significantly compromise the 28-day compressive strength. | chunk_1906 | b088e7605ca0fbdb661fcc1e22d3048c6074bc86 | Durability and Ecological Evaluation of Structural Concrete with Sewage Sludge Ash as Ternary Binder | 2,024 | https://www.semanticscholar.org/paper/b088e7605ca0fbdb661fcc1e22d3048c6074bc86 | b088e_Durability_and_Ecological_Evaluation_of_Structural_Concrete_with_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is specific and directly answerable from Table 3 in the source chunk. The answer correctly extracts the total binder content, OPC-43 percentage, and fly ash percentage for the requested mix identification (M3/0.60/40%) without any errors. | What are the total binder content and the specific percentages of OPC-43 and fly ash used in the concrete mix identified as M3/0.60/40%? | The M3/0.60/40% mix has a total binder content of 300 kg/m³, consisting of 60% OPC-43 and 40% fly ash. | chunk_0758 | e53c3f7a242ad57443254c1f3459b37ca3d33fec | Performance of High Volume Fly Ash Concrete in Structural Applications | 2,023 | https://www.semanticscholar.org/paper/e53c3f7a242ad57443254c1f3459b37ca3d33fec | e53c3_Performance_of_High_Volume_Fly_Ash_Concrete_in_2023 | null | methodology |
5 | 5 | 5 | 4 | 5 | 5 | keep | The QA pair is accurate and directly supported by the source. While the answer describes *how* they perform (by stating the absorption coefficients achieved) rather than explaining the underlying physical mechanism (which the text doesn't explicitly detail for the mid/high range, only for the low range), it is a comple... | Why are lower density hemp fibres (50-100 kg/m³) considered more effective for absorbing mid-frequency (630-2000 Hz) and high-frequency (2500-5000 Hz) sounds compared to higher density fibres? | Lower density hemp fibres perform optimally in the mid-frequency range, achieving absorption coefficients up to 0.99, and consistently exhibit the highest absorption coefficients (up to 0.99) in the high-frequency range, especially at increased thicknesses, demonstrating their effectiveness in managing these frequencie... | chunk_0270 | 1a37013f08a98cb075e6612b92b96da2a348c44b | Evaluation and Analysis of Sound Absorption across Various Types of Hemp Fibre | 2,024 | https://www.semanticscholar.org/paper/1a37013f08a98cb075e6612b92b96da2a348c44b | 1a370_Evaluation_and_Analysis_of_Sound_Absorption_across_Various_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The numerical values for resistivity at 7, 28, and 90 days are correctly extracted and attributed to the correct mixtures. The conclusion regarding long-term performance is a direct and accurate interpretation of the provided text. | How does the electrical resistivity of GP250-50 concrete compare to FA250-50 concrete at 7, 28, and 90 days, and what does this trend indicate about the long-term performance of glass powder? | At 7 days, the resistivity values are similar (4.43 kΩ·cm for FA250-50 and 4.54 kΩ·cm for GP250-50). At 28 days, FA250-50 exhibits slightly higher resistivity (11.95 kΩ·cm) compared to GP250-50 (9.81 kΩ·cm). However, by 90 days, the trend reverses, with GP250-50 exhibiting considerably higher resistivity (58.83 kΩ·cm) ... | chunk_0644 | f4d084fb25d3b00c0313a75aebe92f4474ca82ef | High-volume glass powder concrete as a sustainable and chloride-resistant alternative to fly ash | 2,026 | https://www.semanticscholar.org/paper/f4d084fb25d3b00c0313a75aebe92f4474ca82ef | f4d08_High-volume_glass_powder_concrete_as_a_sustainable_and_2026 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source chunk. The answer accurately identifies the mechanisms (pozzolanic and latent hydraulic properties) and the relationship with the w/b ratio as described in the text, including the specific example provided. | What is the primary mechanism attributed to the improved chloride penetration resistance in concrete containing 20% to 50% GGBS, and how does the water-to-binder ratio influence this resistance? | The improved chloride penetration resistance is attributed to the pozzolanic and latent hydraulic properties of GGBS, which limit the movement of chloride ions and lower concrete permeability. Additionally, lower water-to-binder ratios significantly increase chloride resistance, with the mix containing 50% GGBS and a 0... | chunk_2614 | 92145f8980217682ce5eaf29e32b2469de1ac736 | Enhanced Concrete Performance and Sustainability with Fly Ash and Ground Granulated Blast Furnace Slag – A Comprehensive Experimental Study | 2,024 | https://www.semanticscholar.org/paper/92145f8980217682ce5eaf29e32b2469de1ac736 | 92145_Enhanced_Concrete_Performance_and_Sustainability_with_Fly_Ash_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly derived from the source text, and the answer is a precise, verbatim extraction of the information provided regarding the interaction between BCL and WGP. | According to the response surface regression analysis, what does the significant interaction between BCL and WGP (P = 0.008) indicate about their combined effect on the liquid limit of the soil? | The significant interaction indicates that the combined effect of BCL and WGP on the liquid limit is not purely additive. | chunk_1735 | 9499aefa7cf6dfeb3fc7508dd85c52ef3ba7b13d | Optimization of green concrete properties using ceramic and GGBS waste | 2,026 | https://www.semanticscholar.org/paper/9499aefa7cf6dfeb3fc7508dd85c52ef3ba7b13d | 9499a_Optimization_of_green_concrete_properties_using_ceramic_and_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are excellent. The answer accurately extracts all the specific technical reasons provided in the text (silica content, combined oxide content, LOI, CaO, and free lime) to address both parts of the question. All numerical values match the source text perfectly. | Why is Cocoa Leaf Ash (CLA) classified as a Class F pozzolan according to ASTM C618-08 (2008) specifications, and why is it not regarded as a cementitious material? | CLA is classified as a Class F pozzolan because its silica content exceeds 25%, its combined oxide content (SiO2 + Al2O3 + Fe2O3) is 74.20% (exceeding the 70% minimum), and its loss on ignition is 4.20% (below the 6% maximum). It is not regarded as a cementitious material because its CaO and free lime contents are low,... | chunk_0865 | 1cae2e8e95bbb94cce9b22624bb17db3ae7dc932 | Strength characteristics of Cocoa Leaf Ash (CLA) blended cement Laterized concrete | 2,024 | https://www.semanticscholar.org/paper/1cae2e8e95bbb94cce9b22624bb17db3ae7dc932 | 1cae2_Strength_characteristics_of_Cocoa_Leaf_Ash_(CLA)_blended_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The source explicitly states that water absorption values remained below 3%, indicating acceptable durability for pavement applications. | What does the observation that water absorption values for mixes containing plastic waste remained below 3% indicate regarding their suitability for pavement applications? | It indicates acceptable durability for pavement applications. | chunk_1968 | 74a6d2d661af42ac5a67b7242a0e315dc6ca5d4f | Experimental Investigation on the Performance of Rigid Pavement Incorporating Non-Degradable Waste, Quarry Dust, and M-Sand | 2,026 | https://www.semanticscholar.org/paper/74a6d2d661af42ac5a67b7242a0e315dc6ca5d4f | 74a6d_Experimental_Investigation_on_the_Performance_of_Rigid_Pavement_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The source explicitly states that the peaks in the 1100-1600 cm-1 range are attributed to hemicellulose and that a reduction in their intensity suggests the elimination of hemicellulose content. | According to FTIR analysis, what does the reduction in intensity of the peaks in the 1100-1600 cm-1 range in benzoyl chloride-treated sugarcane bagasse fibre compared to untreated fibre indicate? | The reduction in intensity of the peaks in the 1100-1600 cm-1 range suggests the elimination of hemicellulose content in the sugarcane bagasse fibre. | chunk_2250 | 36ea257a1805bfecafa63f4561094546d745e8d0 | Effect of Benzoyl Chloride and Fiber Loading on Mechanical Properties and Biodegradation of Poly Lactic Acid/Sugarcane Bagasse Fibre Composites | 2,024 | https://www.semanticscholar.org/paper/36ea257a1805bfecafa63f4561094546d745e8d0 | 36ea2_Effect_of_Benzoyl_Chloride_and_Fiber_Loading_on_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The source explicitly states that the increase in ER (electrical resistivity) may be explained by the fact that increasing GW results in a reduction of voids, which is accurately reflected in the answer. | What mechanism explains the observed increase in electrical resistivity values for self-compacting sand concrete (SCSC) mixtures as the substitution of natural sand with granite waste (GW) increases? | The increase in electrical resistivity is explained by the reduction of voids resulting from the increasing amount of granite waste, which leads to a denser porous structure. | chunk_0216 | 4a13682e63f5f60985e319362c0918d4346512e3 | Durability assessment of bio-based self-compacting sand concrete with recycled granite aggregate waste against chloride and sulphate attacks | 2,025 | https://www.semanticscholar.org/paper/4a13682e63f5f60985e319362c0918d4346512e3 | 4a136_Durability_assessment_of_bio-based_self-compacting_sand_concrete_with_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer accurately captures both the reason for avoiding NaOH (potential chemical reactions with RHA) and the purpose of the water soaking method (removing entrapped air and promoting bonding). | Why was crumb rubber treated by soaking in water for 24 hours instead of using NaOH treatment in concrete mixtures containing rice husk ash? | NaOH treatment was avoided because additional chemical reactions could occur between the rice husk ash and NaOH; soaking in water was used to remove entrapped air in the rubber particles and promote the bond between the rubber and the cement matrix. | chunk_2832 | 294d755c30dcfd69dbbdaec802606e410396c7e7 | Properties of Concrete Containing Crumb Rubber and Rice Husk Ash Mixing with Peat Water | 2,025 | https://www.semanticscholar.org/paper/294d755c30dcfd69dbbdaec802606e410396c7e7 | 294d7_Properties_of_Concrete_Containing_Crumb_Rubber_and_Rice_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The QA pair is excellent. The answer accurately extracts all numerical data (percentages and days) and technical mechanisms (hydration, pozzolanic reaction, C-S-H formation, and shrinkages) provided in the source text. The translation from Vietnamese to English is precise and maintains the scientific integrity of the o... | How does air curing affect the compressive strength of sugarcane bagasse ash (SCBA) concrete compared to ordinary Portland cement (PCB) concrete, and what are the specific mechanisms identified for the strength reduction? | Air curing causes a greater reduction in compressive strength for SCBA concrete (13.5% at 28 days and 10.6% at 56 days) than for PCB concrete (4.9% at 28 days and 5.4% at 56 days). This reduction is attributed to water evaporation preventing complete cement hydration, which limits the pozzolanic reactions of the bagass... | chunk_1265 | e7cdef182524e4e8a96ab484ffea5a601de722ff | Effect of curing conditions on mechanical properties and sorption characteristics of concrete using sugarcane bagasse ash | 2,024 | https://www.semanticscholar.org/paper/e7cdef182524e4e8a96ab484ffea5a601de722ff | e7cde_Effect_of_curing_conditions_on_mechanical_properties_and_2024 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The question accurately summarizes the experimental conditions and the specific finding mentioned in the text, and the answer provides the exact numerical and chemical information provided in the source. | What is the mineralogical composition of the calcined seashell waste powder (SWP) produced by heating cleaned seashell waste at 650 °C for 2 hours, as determined by XRD analysis? | The mineralogical composition of the calcined seashell waste powder is 98% calcium hydroxide (Ca(OH)₂) and calcium oxide (CaO). | chunk_0209 | 4a13682e63f5f60985e319362c0918d4346512e3 | Durability assessment of bio-based self-compacting sand concrete with recycled granite aggregate waste against chloride and sulphate attacks | 2,025 | https://www.semanticscholar.org/paper/4a13682e63f5f60985e319362c0918d4346512e3 | 4a136_Durability_assessment_of_bio-based_self-compacting_sand_concrete_with_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source chunk. All numerical values, units, and chemical species (NO, NOx, CO, CO2) are extracted accurately from the text. | Which specific briquette mixture is identified as the optimal choice for environmental protection, and what are its reported emissions of NO, NOx, CO, and CO2? | The briquetted mixture of tobacco stalks and beech sawdust is identified as the optimal choice, with reported emissions of 203 mg/m³ for NO, 311.67 mg/m³ for NOx, 1562 mg/m³ for CO, and 7.44% for CO2. | chunk_0606 | 195e2d14a77242e028bba5212e81f8e03ec911f6 | Energy and emission properties of burley tobacco stalk briquettes and its combinations with other biomass as promising replacement for coal | 2,023 | https://www.semanticscholar.org/paper/195e2d14a77242e028bba5212e81f8e03ec911f6 | 195e2_Energy_and_emission_properties_of_burley_tobacco_stalk_2023 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer accurately identifies the two factors mentioned in the text (fly ash and superplasticizer) that mitigated the water demand caused by the finer particles of the foundry sand. | Why was the workability of concrete mixes containing up to 20% waste foundry sand replacement not significantly influenced, despite the finer particle size of the sand? | The presence of fly ash (50 kg/m³) and superplasticizer minimized the excessive water demand that would otherwise be required due to the finer particles of the waste foundry sand. | chunk_2765 | 2ced3d4ff9a38a057b6d858bb1a6b06d78ad5eaa | Sustainable concrete production through the integration of waste foundry sand, fly ash, silica fume and metakaolin | 2,025 | https://www.semanticscholar.org/paper/2ced3d4ff9a38a057b6d858bb1a6b06d78ad5eaa | 2ced3_Sustainable_concrete_production_through_the_integration_of_waste_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer accurately captures the reasons for comparable strength (ineffective dispersion/bunching) and correctly cites the specific percentage decreases for the hybrid mix at 7 and 14 days as stated in the text. | Why were the compressive strengths of concrete mixes using 12mm long basalt fibres found to be comparable to other mixes despite higher dosage, and how did the hybrid mix of 50% 6mm and 50% 12mm basalt fibres at 5% volume fraction affect compressive strength at 7 and 14 days compared to plain concrete? | The comparable compressive strengths were attributed to ineffective dispersion or bunching/sticking of the higher dosage fibres. The hybrid mix exhibited a 9.63% decrease in compressive strength at 7 days and a 19% decrease at 14 days compared to plain concrete. | chunk_0900 | 646c11ee46e0e4a01b8ee7dba2fbff6935df00f6 | Effect of increased basalt fibre dosage on hybrid basalt fibre reinforced concrete's strength properties | 2,025 | https://www.semanticscholar.org/paper/646c11ee46e0e4a01b8ee7dba2fbff6935df00f6 | 646c1_Effect_of_increased_basalt_fibre_dosage_on_hybrid_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly derived from the source text, and the answer accurately reflects the information provided regarding the model's predictive capabilities and its agreement with actual values within the specified ranges. | What is the stated capability of the calculation model regarding the relative dynamic modulus of concrete specimens when varying the recycled aggregate replacement rate and steel fiber doping amount within the ranges of 0-100% substitution and 0-2% fiber content? | The model can predict the loss of relative dynamic modulus of concrete specimens by changing the recycled aggregate replacement rate and steel fiber doping amount, as the slope of the fitted curves and nodal values showed good agreement with actual values in the specified ranges. | chunk_2447 | e709e4e27fe62128e7baebf5ac9a749c0f7a7eb3 | Frost resistance investigation of fiber reinforced recycled brick aggregate cementitious materials | 2,022 | https://www.semanticscholar.org/paper/e709e4e27fe62128e7baebf5ac9a749c0f7a7eb3 | e709e_Frost_resistance_investigation_of_fiber_reinforced_recycled_brick_2022 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly derived from the text, and the answer provides the exact explanation provided in the source chunk without any external information or errors. | Why do concrete columns reinforced with GFRP bars and containing recycled demolition aggregate (RDA) exhibit slightly higher maximum load values than those containing recycled concrete aggregate (RDC)? | Columns with RDA aggregate exhibit slightly higher maximum load values because RDA has a higher water absorption capacity and contains more impurities and air gaps. | chunk_1832 | a1d9808c8731d084da826a5ff7c49a3ab214ba93 | Compressive Strength of Square Short Concrete Columns reinforced with GFRP Bars produced with Recycled Demolition Aggregate | 2,024 | https://www.semanticscholar.org/paper/a1d9808c8731d084da826a5ff7c49a3ab214ba93 | a1d98_Compressive_Strength_of_Square_Short_Concrete_Columns_reinforced_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source chunk. The answer accurately explains the technical reason provided in the text (omission of coarse aggregate leading to higher cement paste content) and the mechanism (sulphate attack on hydration products) for the observed difference in mass change between... | Why do mortar samples typically exhibit higher mass change values (up to 2.5% and 4.5%) compared to concrete samples when exposed to sodium sulphate attack? | Mortar samples contain a higher percentage of hardened cement paste than concrete samples due to the omission of coarse aggregate. Since sulphate attack primarily affects hydration products within the cement paste, its effect is more severe in mortar, leading to higher mass change. | chunk_1478 | b5078174df548cad17954b1ae6c0f6af624b48f8 | Compressive Strength and Resistance to Sodium Sulphate Attack of Concrete Incorporated with Fine Aggregate Recycled Ceramic Tiles | 2,023 | https://www.semanticscholar.org/paper/b5078174df548cad17954b1ae6c0f6af624b48f8 | b5078_Compressive_Strength_and_Resistance_to_Sodium_Sulphate_Attack_2023 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question accurately reflects the trends shown in the first table of the source chunk, and the answer correctly identifies the inverse relationship between sand content and ash content, including the specific numerical values and increments provided in the data. | In the mix designs for Cement Treated Base Class B using Cempaka sand, how does the ash content vary as the sand content decreases from 70% to 45% while the cement content remains constant at 15%? | As the sand content decreases from 70% to 45%, the ash content increases from 15% to 40% in 5% increments, while the cement content is maintained at 15%. | chunk_2407 | b4525fa8eba0d787e670f8bbbda67386f53d872d | ANALYSIS OF THE UTILIZATION OF COMBUSTION WASTE ASH FROM PALM KERNEL SHELL AS A SUBSTITUTE FOR FINE AGGREGATES IN CEMENT TREATED BASE CLASS B | 2,023 | https://www.semanticscholar.org/paper/b4525fa8eba0d787e670f8bbbda67386f53d872d | b4525_ANALYSIS_OF_THE_UTILIZATION_OF_COMBUSTION_WASTE_ASH_2023 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are excellent. The answer accurately extracts the specific L-Box values for mixes M1 through M4 from Table IV and correctly compares them to the EFNARC typical range provided in the text. The technical interpretation of the trend is consistent with the data. | How does the L-Box ratio of self-compacting concrete change as the percentage of ceramic tile waste powder (CTWP) replacement increases from 5% to 20% in mixes M1 through M4, and what does this trend indicate about the material's filling ability relative to the EFNARC typical range? | The L-Box ratio decreases from 0.96 for 5% CTWP (M1) to 0.90 for 20% CTWP (M4). This trend indicates a reduction in filling ability, although all values remain within the EFNARC typical range of 0.8 to 1.0. | chunk_1061 | 73ed62236b626ff659e447b1b534cf3e0c57b79c | Sustainable Self-Compacting Concrete with Partial Replacement of Cement with Ceramic Tile Waste Powder and Fine Aggregate with Slag Sand | 2,025 | https://www.semanticscholar.org/paper/73ed62236b626ff659e447b1b534cf3e0c57b79c | 73ed6_Sustainable_Self-Compacting_Concrete_with_Partial_Replacement_of_Cement_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer directly extracts the specific benefits and applications mentioned in the final sentence of the source chunk without adding outside information. | What does the combined use of 10% Alccofine 1203 and 1% kenaf fibre provide in terms of concrete performance? | It provides an effective balance between strength enhancement, crack resistance, and workability, making it a suitable proportion for sustainable and high-performance concrete applications. | chunk_2912 | 1fb05b06473b7e22df857d0a1be0ccabe9c793d1 | Experimental Investigation on Performance of Concrete with Alccofine 1203 and Kenaf Fibre | 2,026 | https://www.semanticscholar.org/paper/1fb05b06473b7e22df857d0a1be0ccabe9c793d1 | 1fb05_Experimental_Investigation_on_Performance_of_Concrete_with_Alccofine_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. All numerical values (508, 6400, 2473, and 2830 CFU/g) and time intervals (initial, 1 day, 7 days, and 28 days) are accurately extracted from the provided text. | In the F50FM concrete mixture, how did the viable bacterial colony count change from the initial introduction of 508 CFU/g to the 28-day mark, and what specific values were recorded at 1, 7, and 28 days? | The viable bacterial colony count initially increased from 508 CFU/g to 6400 CFU/g at one day after hardening. It then decreased to 2473 CFU/g at 7 days and 2830 CFU/g at 28 days. | chunk_1971 | a5744b6cc7014cc5d4380531ebbb4d7a4f7f4f43 | Performance and Durability of High-Volume Fly Ash Concrete Incorporating Bacillus safensis : A Comparative Study of Class C and Class F Fly Ash | 2,025 | https://www.semanticscholar.org/paper/a5744b6cc7014cc5d4380531ebbb4d7a4f7f4f43 | a5744_Performance_and_Durability_of_High-Volume_Fly_Ash_Concrete_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is well-structured and directly addresses the data provided in the source chunk. The answer is factually correct, fully grounded in the text and Table 9, and accurately reports all numerical values and trends. | How does the 7-day compressive strength and percentage of attainment change as the substitution levels of PET and PKS increase in concrete with a target design strength of 20.5 MPa, based on the mix variations PET 0% - PKS 0%, PET 1% - PKS 10%, and PET 2% - PKS 20%? | The 7-day compressive strength and percentage of attainment consistently decrease as the PET and PKS substitution levels increase. The control specimen (PET 0% - PKS 0%) achieved the highest strength of 10.76 MPa (79.76% attainment), followed by PET 1% - PKS 10% at 7.93 MPa (58.77% attainment), and PET 2% - PKS 20% at ... | chunk_2052 | 09f393387a5587f9290c5b54cda59feae2ad2d88 | Compressive Strength Analysis of 20,5 MPa Concrete with Polyethylene Terephthalate (PET) Plastic and Palm Kernel Shell | 2,025 | https://www.semanticscholar.org/paper/09f393387a5587f9290c5b54cda59feae2ad2d88 | 09f39_Compressive_Strength_Analysis_of_20,5_MPa_Concrete_with_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question-answer pair is excellent. The answer accurately and comprehensively synthesizes the microstructural explanations (ITZ, porosity, density, microcracks) and the practical reasoning (suitability for non-structural elements) provided directly in the source text. | What microstructural mechanisms explain the continued reduction in 28-day compressive strength of concrete containing PET and PKS, and why is the 1% PET - 10% PKS mixture considered the most practical substitution level? | The strength reduction is attributed to microstructural degradation caused by non-reactive PET particles and porous PKS aggregates, which create a poor interfacial transition zone (ITZ), increase porosity, lower density, and induce microcracks due to differences in stiffness and thermal expansion. The 1% PET - 10% PKS ... | chunk_2055 | 09f393387a5587f9290c5b54cda59feae2ad2d88 | Compressive Strength Analysis of 20,5 MPa Concrete with Polyethylene Terephthalate (PET) Plastic and Palm Kernel Shell | 2,025 | https://www.semanticscholar.org/paper/09f393387a5587f9290c5b54cda59feae2ad2d88 | 09f39_Compressive_Strength_Analysis_of_20,5_MPa_Concrete_with_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is well-structured and directly addresses specific details found in the source. The answer is precise, factually correct, and fully supported by the text regarding both the curing temperature/medium and the averaging protocol. | What curing conditions and specimen averaging protocol were applied to the coconut shell and silica fume concrete specimens to ensure statistical reliability in the durability assessment? | The specimens were cured in potable water at 27 °C ± 2 °C, and the reported test results represent the average of three independent specimens (n = 3) with corresponding standard deviations. | chunk_1981 | c0a7e41eeb55144dfd4e4abe119c14de799ca5ce | Durability assessment and machine learning-based prediction of coconut shell and silica fume concrete | 2,026 | https://www.semanticscholar.org/paper/c0a7e41eeb55144dfd4e4abe119c14de799ca5ce | c0a7e_Durability_assessment_and_machine_learning-based_prediction_of_coconut_2026 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source chunk. The mechanisms (filler effect and pozzolanic reaction) and the specific numerical values for the 12.5% substitution level are accurately extracted from the text. | According to Rahman et al. (2019), what two mechanisms are cited as the cause for the simultaneous increase in specific gravity and compressive strength in concrete with pineapple leaf ash substitution, and what were the peak values for specific gravity and compressive strength observed at the optimal substitution leve... | The simultaneous increase is attributed to the filler effect and pozzolanic reaction. At the 12.5% substitution level, the specific gravity peaked at 2335 kg/m³ and the compressive strength reached 34.70 MPa. | chunk_2481 | ddf478a28859380be74166773244ec9bcd6dc7ed | The Effect of Pineapple Leaf Ash Substitution on the Workability, Density, and Compressive Strength of Normal Concrete | 2,025 | https://www.semanticscholar.org/paper/ddf478a28859380be74166773244ec9bcd6dc7ed | ddf47_The_Effect_of_Pineapple_Leaf_Ash_Substitution_on_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly answerable from Table 5, and the answer correctly extracts the specific numerical values (5.23 MPa for Mix 4 and 3.52 MPa for Mix 1 at 28 days) and provides a correct comparison. | What is the flexural strength of Mix 4 I-dumble paver blocks at 28 days, and how does this value compare to the 28-day flexural strength of Mix 1 I-dumble paver blocks? | The flexural strength of Mix 4 I-dumble paver blocks at 28 days is 5.23 MPa, which is higher than the 3.52 MPa recorded for Mix 1 I-dumble paver blocks at the same age. | chunk_2520 | f3babad2ae83301a8f28ed95cb7bd65c76d7d86e | Impact of fly ash and banana fiber on mechanical performance of paver block concrete | 2,024 | https://www.semanticscholar.org/paper/f3babad2ae83301a8f28ed95cb7bd65c76d7d86e | f3bab_Impact_of_fly_ash_and_banana_fiber_on_2024 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The question correctly identifies the numerical range and asks for the interpretation provided in the text, and the answer provides the exact explanation found in the source regarding bonding and load transfer. | What does the minimal variation in flexural stress values, ranging from 33.49 N/mm² to 41.30 N/mm², indicate about the interaction between bamboo and concrete in the reinforced beams? | The consistency in flexural stress values indicates a strong and uniform bonding between the bamboo and concrete, which is crucial for efficient load transfer and overall structural performance. | chunk_0229 | e363816fd58422a8f4662ba9f7f594e6d23ee2b5 | Flexural Behavior of Bamboo Reinforced Concrete Beams Treated with Sikadur 32 F | 2,025 | https://www.semanticscholar.org/paper/e363816fd58422a8f4662ba9f7f594e6d23ee2b5 | e3638_Flexural_Behavior_of_Bamboo_Reinforced_Concrete_Beams_Treated_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is well-structured and directly answerable from the provided table. The answer correctly identifies the trend (decreasing fine aggregate) and provides the specific value (520 kg/m³) for the 20% WFS replacement level as shown in the data for all mix series provided. | How does the fine aggregate content change in concrete mixes with a water-to-cement ratio of 0.5 as the waste foundry sand (WFS) replacement level increases from 0% to 20%, and what is the specific fine aggregate content for the 20% WFS replacement? | The fine aggregate content decreases as the waste foundry sand replacement level increases. For the 20% WFS replacement, the fine aggregate content is 520 kg/m³. | chunk_2767 | 2ced3d4ff9a38a057b6d858bb1a6b06d78ad5eaa | Sustainable concrete production through the integration of waste foundry sand, fly ash, silica fume and metakaolin | 2,025 | https://www.semanticscholar.org/paper/2ced3d4ff9a38a057b6d858bb1a6b06d78ad5eaa | 2ced3_Sustainable_concrete_production_through_the_integration_of_waste_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. All numerical values (specific gravity and water absorption for both RCA and sand) are extracted accurately from the provided chunk. | What are the specific gravity and water absorption values for the Recycled Concrete Aggregates (RCA) used in the concrete mix design, and how do they compare to the clean sand used in the same study? | The Recycled Concrete Aggregates (RCA) had a specific gravity of 2550 kg/m³ and a water absorption of 4.9%, whereas the clean sand had a specific gravity of 2.62 and a water absorption of 0.65%. | chunk_0803 | 1d5318deae77f7be0bda4de52736e5ecb80b4fea | Properties of Recycled Concrete utilizing Waste Rubber | 2,023 | https://www.semanticscholar.org/paper/1d5318deae77f7be0bda4de52736e5ecb80b4fea | 1d531_Properties_of_Recycled_Concrete_utilizing_Waste_Rubber_2023 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer accurately reflects the relationship between Blaine fineness, surface area, pozzolanic reaction with calcium hydroxide, and the densification of the concrete microstructure as stated in the source. | How does the Blaine fineness of 4720 cm²/g observed in sugarcane bagasse ash (SCBA) influence its pozzolanic activity and the resulting concrete microstructure? | The high Blaine fineness indicates that SCBA is a highly fine material, which promotes enhanced pozzolanic reactions by increasing the surface area available for reaction with calcium hydroxide. This high specific surface area is also beneficial for densifying the concrete microstructure. | chunk_2460 | bc13aef387dbd48e57557ed0346f20601448b827 | Mechanical and environmental performance of sugarcane Bagasse Ash from Khyber Pakhtunkhwa in sustainable concrete | 2,025 | https://www.semanticscholar.org/paper/bc13aef387dbd48e57557ed0346f20601448b827 | bc13a_Mechanical_and_environmental_performance_of_sugarcane_Bagasse_Ash_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is highly relevant and specific to the provided text, and the answer accurately and concisely summarizes the findings regarding the 80% replacement mix as described in the EDAX analysis section. | According to EDAX analysis of the concrete matrix after 28 days of curing, what specific elemental changes and phase developments indicated active pozzolanic reactions in the 80% OSA+WSA replacement mix compared to the control mix? | The 80% OSA+WSA replacement mix exhibited an increase in silicon (Si) and aluminum (Al) peaks with a constant Ca/Si ratio, indicating active pozzolanic reactions and the development of secondary C-S-H and C-A-H phases that strengthened the matrix. | chunk_1213 | 1f0bea54c4bdd70bbd415fe1428e98d88491d837 | Mechanical Characterization of Concrete with Replaced Shell Ash Aggregates Using ANOVA and Regression Methods | 2,026 | https://www.semanticscholar.org/paper/1f0bea54c4bdd70bbd415fe1428e98d88491d837 | 1f0be_Mechanical_Characterization_of_Concrete_with_Replaced_Shell_Ash_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question correctly identifies the specific row (5-fold) and metric (RMSE) from the table, and the answer accurately identifies the model (ANN-Adaboost) and the corresponding value (1.689) as the minimum in that row. | Which machine learning model achieved the lowest Root Mean Square Error (RMSE) in the 5-fold cross-validation for estimating the compressive strength of waste concrete utilizing fly ash/slag, and what was that specific RMSE value? | The ANN-Adaboost model achieved the lowest RMSE of 1.689 in the 5-fold cross-validation. | chunk_0799 | ee314951b34cc70417cdc5d83322f6ea72f126b5 | Estimation of compressive strength of waste concrete utilizing fly ash/slag in concrete with interpretable approaches: optimization and graphical user interface (GUI) | 2,024 | https://www.semanticscholar.org/paper/ee314951b34cc70417cdc5d83322f6ea72f126b5 | ee314_Estimation_of_compressive_strength_of_waste_concrete_utilizing_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer correctly identifies the benefits of the bagging algorithm (reduction of variance/overfitting), the specific R² value mentioned (0.89), and the metrics by which it outperforms the ANN (MAE and average error distribution). | What does the bagging algorithm's reduction of variance and overfitting indicate about its performance compared to the individual ANN model for predicting the compressive strength of FASBC? | The bagging algorithm provides a better response than the individual ANN model by decreasing the effects of variance and overfitting, achieving an R² of 0.89 and outperforming the ANN in terms of MAE and average error distribution. | chunk_0795 | ee314951b34cc70417cdc5d83322f6ea72f126b5 | Estimation of compressive strength of waste concrete utilizing fly ash/slag in concrete with interpretable approaches: optimization and graphical user interface (GUI) | 2,024 | https://www.semanticscholar.org/paper/ee314951b34cc70417cdc5d83322f6ea72f126b5 | ee314_Estimation_of_compressive_strength_of_waste_concrete_utilizing_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly answerable from the source chunk, and the answer provides the exact numerical values (168 hr and 29 hr) mentioned in the text regarding oven curing duration (CD). | What is the maximum oven curing duration recorded in the dataset of fly ash-based geopolymer concrete mixtures, and what is the corresponding average curing duration? | The maximum oven curing duration recorded was 168 hours, while the average curing duration was 29 hours. | chunk_1302 | 2f7820604ffaf5b30e8d6daaf52a6b5b6fe1cfce | Systematic multiscale models to predict the compressive strength of fly ash-based geopolymer concrete at various mixture proportions and curing regimes | 2,021 | https://www.semanticscholar.org/paper/2f7820604ffaf5b30e8d6daaf52a6b5b6fe1cfce | 2f782_Systematic_multiscale_models_to_predict_the_compressive_strength_2021 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer accurately captures the key findings regarding the 2.5% OPBF level, including the specific q-statistic value, the significance of the p-values, and the comparison to the 5% level as described in the text. | What does the Tukey HSD analysis indicate about the influence of 2.5% Oil Palm Broom Fiber (OPBF) on the compressive strength of rice husk ash–blended concrete compared to other OPBF levels? | The analysis indicates that 2.5% OPBF is the most positively influential amount, as it yielded the highest q-statistic values (e.g., 41.8 compared to the control) and significant p-values well below 0.05, distinguishing it from other levels such as 5% OPBF which showed minimal difference. | chunk_1963 | f4e6ec51106631c2ca20e47736416bd0b4dc37b7 | Effect of Oil Palm Broom Fiber on the Mechanical Properties of Rice Husk Ash–Blended Concrete | 2,025 | https://www.semanticscholar.org/paper/f4e6ec51106631c2ca20e47736416bd0b4dc37b7 | f4e6e_Effect_of_Oil_Palm_Broom_Fiber_on_the_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the provided data table. The answer correctly identifies the lowest MAE in the 'Test MAE' column (0.139) and correctly associates it with the random seed RS=2023. Although the source chunk does not explicitly name the model as 'Krn-PSO', the question is answerable base... | In the evaluation of the Krn-PSO model for predicting recycled aggregate concrete properties, which random seed produced the lowest Mean Absolute Error (MAE) on the test set, and what was the corresponding MAE value? | The random seed RS=2023 produced the lowest Mean Absolute Error (MAE) on the test set, with a value of 0.139. | chunk_2640 | e034ea456946bf44055b510695d930005f1a5ec1 | Harnessing AI For Sustainable Construction: Predicting and Optimizing Recycled Aggregate Concrete with Krn-PSO | 2,025 | https://www.semanticscholar.org/paper/e034ea456946bf44055b510695d930005f1a5ec1 | e034e_Harnessing_AI_For_Sustainable_Construction:_Predicting_and_Optimizing_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is well-grounded in the source text, and the answer accurately and concisely summarizes the specific XRD modifications (sharper/more intense peaks at 2θ = 22°) and the underlying structural reasons (removal of amorphous constituents like hemicellulose and lignin) provided in the text. | How does NaOH treatment of groundnut shell fibers modify their XRD diffraction patterns, and what structural changes in the lignocellulosic matrix are responsible for these modifications? | NaOH treatment results in sharper and more intense XRD peaks, particularly around 2θ = 22° corresponding to the crystalline cellulose (002) plane, indicating enhanced crystallinity and improved ordering of cellulose microfibrils. These changes are caused by the removal of amorphous constituents such as hemicellulose an... | chunk_0515 | f66c1369fa20b761d40f4ba7a335adf7febf1010 | Chemically treated groundnut shell fibers for enhanced mechanical and blast performance of concrete | 2,025 | https://www.semanticscholar.org/paper/f66c1369fa20b761d40f4ba7a335adf7febf1010 | f66c1_Chemically_treated_groundnut_shell_fibers_for_enhanced_mechanical_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer directly extracts the specific values and the scientific explanation (pore refinement and dense particle packing) provided in section 6.1.2 of the source chunk. | How does the inverse relationship between compressive strength, water absorption, and open pore space manifest in the optimized HLC3 mixture, and what does this indicate about the mechanism of mechanical enhancement? | The optimized HLC3 mixture exhibited the lowest water absorption (2.9%) and open pore space (7.2%), which corresponded to the highest 90-day compressive strength of 47.5 MPa, confirming that pore refinement and dense particle packing significantly contributed to mechanical enhancement. | chunk_2896 | f5356d2c8e31c7001cb90dab65db13886902ed3a | Statistical optimization and sustainability performance of hybrid limestone calcined clay cement (HLC3) concrete using Taguchi–ANOVA approach | 2,026 | https://www.semanticscholar.org/paper/f5356d2c8e31c7001cb90dab65db13886902ed3a | f5356_Statistical_optimization_and_sustainability_performance_of_hybrid_limestone_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer directly addresses the mechanism of larnite (forming C-S-H) versus the role of dolomite and calcite (fillers) as stated in the source. | How does the presence of larnite in steel slag aggregates contribute to the late-age compressive strength of concrete compared to the role of dolomite and calcite? | Larnite hydrates to form additional C-S-H, which enhances late-age strength, whereas dolomite and calcite act primarily as fillers. | chunk_2567 | 981ecbf382aa764711e6b824173044cf0140f104 | Enhancing strength and sustainability of concrete with steel slag aggregate | 2,025 | https://www.semanticscholar.org/paper/981ecbf382aa764711e6b824173044cf0140f104 | 981ec_Enhancing_strength_and_sustainability_of_concrete_with_steel_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are excellent. The question correctly identifies the specific mix (M15) and its performance metric (97.59%) from the text, and the answer accurately and comprehensively captures the two distinct mechanisms (pore structure/Ca(OH)2 reduction and the synergy of BLA/BA promoting C-S-H/hydroxyapatite... | What mechanism is cited as the reason why concrete containing 15% combined Bamboo Leaf Ash and Bone Ash retained 97.59% of its original compressive strength after acid exposure, outperforming the control mix? | The high strength retention is attributed to a refined pore structure and reduced Ca(OH)₂ availability, which limit acid penetration and damage, as well as the promotion of additional C-S-H and hydroxyapatite phases due to the synergy of silica-rich Bamboo Leaf Ash and calcium-rich Bone Ash. | chunk_0486 | 4139713b0ca55dada0e2e0c562a20f5b9d66d74b | Acid Resistance and Strength Performance of Bamboo Leaf Ash–Bone Ash Concrete under Simulated Acid Rain Conditions | 2,025 | https://www.semanticscholar.org/paper/4139713b0ca55dada0e2e0c562a20f5b9d66d74b | 41397_Acid_Resistance_and_Strength_Performance_of_Bamboo_Leaf_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source chunk, and the answer accurately reflects the specific mechanism (refined/stable microstructure due to additional C-S-H) mentioned in the text. | What is the proposed reason for the improved resistance to sodium sulphate attack observed in concrete samples incorporating recycled ceramic tiles (RCT) as fine aggregate? | The improved resistance is attributed to a refined and stable microstructure resulting from the formation of additional calcium silicate hydrate (C-S-H) during the hydration process. | chunk_1484 | b5078174df548cad17954b1ae6c0f6af624b48f8 | Compressive Strength and Resistance to Sodium Sulphate Attack of Concrete Incorporated with Fine Aggregate Recycled Ceramic Tiles | 2,023 | https://www.semanticscholar.org/paper/b5078174df548cad17954b1ae6c0f6af624b48f8 | b5078_Compressive_Strength_and_Resistance_to_Sodium_Sulphate_Attack_2023 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source chunk, and the answer accurately and concisely reflects the specific correlation described in the text. | What is the relationship between the compactness of glass powder concrete specimens and their capillary absorption, electrical resistivity, and chloride penetration performance? | There is a clear correlation where more compact specimens exhibit lower capillary absorption, higher electrical resistivity, and better performance against chloride penetration. | chunk_0649 | f4d084fb25d3b00c0313a75aebe92f4474ca82ef | High-volume glass powder concrete as a sustainable and chloride-resistant alternative to fly ash | 2,026 | https://www.semanticscholar.org/paper/f4d084fb25d3b00c0313a75aebe92f4474ca82ef | f4d08_High-volume_glass_powder_concrete_as_a_sustainable_and_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the data provided in the table within the source chunk. The values for 'Most frequency' (600) and 'Testing method' (61) for 'Tensile strength' are correctly extracted and reported with the correct units (MPa). | What is the most frequently reported tensile strength for waste tire textile fibers (WTTF) and what is the associated testing method reference number? | The most frequently reported tensile strength for waste tire textile fibers is 600 MPa, with the testing method reference number 61. | chunk_1717 | 98aa2622cd11564889f8418c180b8201c15a4c4f | Assessment of mechanical behavior of sprayed concrete reinforced with waste tire textile fibers | 2,024 | https://www.semanticscholar.org/paper/98aa2622cd11564889f8418c180b8201c15a4c4f | 98aa2_Assessment_of_mechanical_behavior_of_sprayed_concrete_reinforced_2024 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are excellent. The question accurately identifies the paradox presented in the text (hydrophobicity vs. lower porosity), and the answer directly uses the specific mechanism provided in the source (excess pozzolan from RHA filling pores and increasing ITZ density) to explain it. | Why does concrete containing crumb rubber and rice husk ash (CR-RHA) exhibit lower porosity than plain concrete (PCC) despite the hydrophobic properties of rubber typically causing air entrapment and pore formation? | The excess pozzolan from rice husk ash fills the concrete pores and significantly increases the density of the interfacial zone between the cement paste and the rubber, counteracting the pore formation caused by the rubber's hydrophobicity. | chunk_2838 | 294d755c30dcfd69dbbdaec802606e410396c7e7 | Properties of Concrete Containing Crumb Rubber and Rice Husk Ash Mixing with Peat Water | 2,025 | https://www.semanticscholar.org/paper/294d755c30dcfd69dbbdaec802606e410396c7e7 | 294d7_Properties_of_Concrete_Containing_Crumb_Rubber_and_Rice_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source text, and the answer is a precise, verbatim extraction of the reason provided in the source chunk. There are no technical or factual errors. | Why were Bacillus pumilus bacterial cultures selected for incorporation into the jute fibre reinforced concrete mix? | Bacillus pumilus was selected for its ability to induce calcium carbonate precipitation and promote self-healing in cementitious matrices. | chunk_0034 | df4fa7fc1ed0bd5b690ffd4420f36143971af934 | Effects of Bacillus pumilus precipitation on the flexural strength of jute fibre reinforced concrete | 2,025 | https://www.semanticscholar.org/paper/df4fa7fc1ed0bd5b690ffd4420f36143971af934 | df4fa_Effects_of_Bacillus_pumilus_precipitation_on_the_flexural_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer accurately identifies the mechanism (diluting effect and increased porosity) and its impact (microstructure and strength growth) as stated in the provided chunk. | What mechanism is attributed to the decline in the load-carrying capacity and structural features of reinforced concrete beams when the ceramic waste powder replacement rate reaches 10% or higher? | The decline is ascribed to a diluting effect and increased ceramic waste powder porosity, which negatively impact the concrete microstructure and hinder strength growth. | chunk_1144 | ae4da3f83655733201ede017c38a846fbd1222c7 | Influence of ceramic waste powder on shear performance of environmentally friendly reinforced concrete beams | 2,024 | https://www.semanticscholar.org/paper/ae4da3f83655733201ede017c38a846fbd1222c7 | ae4da_Influence_of_ceramic_waste_powder_on_shear_performance_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly answerable from the provided table, and the answer correctly identifies the sample with the maximum value in the 'Total energy dissipation (kj)' column and provides the correct numerical value and unit. | Which test sample among the S-REF and S-CERAMIC series exhibited the highest total energy dissipation, and what was that value in kilojoules? | The S-REF#3 sample exhibited the highest total energy dissipation with a value of 1.383 kJ. | chunk_1135 | ae4da3f83655733201ede017c38a846fbd1222c7 | Influence of ceramic waste powder on shear performance of environmentally friendly reinforced concrete beams | 2,024 | https://www.semanticscholar.org/paper/ae4da3f83655733201ede017c38a846fbd1222c7 | ae4da_Influence_of_ceramic_waste_powder_on_shear_performance_2024 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The QA pair is excellent. The question is well-structured and directly addresses the comparative results and mechanisms described in the text. The answer accurately provides the specific numerical data for GP3 and correctly identifies the chemical and physical mechanisms (sealing pores, C-S-H formation, densifying ITZ)... | How does the combination of slurry coating and mechanical grinding (GP3) affect the water absorption of recycled aggregate concrete (RAC) compared to slurry coating alone (GP2), and what is the underlying mechanism for this improvement? | The combined treatment (GP3) results in the lowest levels of water absorption among the treated groups, with GP3-R100 showing absorption values of 6.4% at 7 days, 5.7% at 28 days, and 4.7% at 90 days, which are lower than those of GP2-R100. This improvement is attributed to the slurry coating sealing surface pores and ... | chunk_0623 | 13d08b3cdd4be44fe88c5fbde73ecd6bb84827aa | An innovative approach to enhancing the strength and durability of recycled aggregate concrete through fly ash-silica fume coating and rice husk ash supplementation | 2,025 | https://www.semanticscholar.org/paper/13d08b3cdd4be44fe88c5fbde73ecd6bb84827aa | 13d08_An_innovative_approach_to_enhancing_the_strength_and_2025 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The QA pair is excellent. The question correctly identifies a key finding in the text, and the answer accurately synthesizes the relationship between the reduction of environmental impact (mentioned in the text) and the concept of 'maximum efficiency' (which the text links to the ratio of compressive strength to impact... | What does the observation of maximum eco-efficiency at a 10% sewage sludge ash replacement rate indicate about the relationship between binder substitution and environmental performance in concrete mixes? | It indicates that while increasing the replacement level of sewage sludge ash generally reduces environmental impact compared to the control mix, the most favorable balance between environmental impact and 28-day compressive strength is achieved specifically at a 10% replacement rate. | chunk_1912 | b088e7605ca0fbdb661fcc1e22d3048c6074bc86 | Durability and Ecological Evaluation of Structural Concrete with Sewage Sludge Ash as Ternary Binder | 2,024 | https://www.semanticscholar.org/paper/b088e7605ca0fbdb661fcc1e22d3048c6074bc86 | b088e_Durability_and_Ecological_Evaluation_of_Structural_Concrete_with_2024 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the information provided in the source chunk. The source explicitly states that the specific mix (45% CS aggregate, 1.5% glass fibers, and 15% silica fume) showed 22% higher split tensile strength compared to the control. | How does the splitting tensile strength of concrete containing 45% coconut shell aggregate, 1.5% glass fibers, and 15% silica fume at 28 days of curing compare to that of the control concrete at 28 days of curing? | The concrete mix containing 45% coconut shell aggregate, 1.5% glass fibers, and 15% silica fume showed 22% higher splitting tensile strength compared to the control concrete at 28 days of curing. | chunk_2742 | 5944c86e5eb538753b110b0e3470f72f2b2d1b9f | A step towards sustainable glass fiber reinforced concrete utilizing silica fume and waste coconut shell aggregate | 2,021 | https://www.semanticscholar.org/paper/5944c86e5eb538753b110b0e3470f72f2b2d1b9f | 5944c_A_step_towards_sustainable_glass_fiber_reinforced_concrete_2021 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The source explicitly states that the trend in WA and AP for binary mixes (where 30% BA showed higher values than 20% BA) can be attributed to the slower rate of the pozzolanic reaction when a high percentage of cement is replaced with BA. | What is the primary reason attributed to the slightly higher water absorption and apparent porosity of binary concrete mixes containing 30% bagasse ash compared to those containing 20% bagasse ash? | The higher water absorption and apparent porosity in the 30% bagasse ash mix are attributed to the slower rate of the pozzolanic reaction in concrete mixtures with a high percentage of cement replaced by bagasse ash. | chunk_0280 | 1b9aee932663e08e30666a973e92e4635903e774 | Mechanical and microstructural performance of concrete containing high-volume of bagasse ash and silica fume | 2,022 | https://www.semanticscholar.org/paper/1b9aee932663e08e30666a973e92e4635903e774 | 1b9ae_Mechanical_and_microstructural_performance_of_concrete_containing_high-volume_2022 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is well-structured and directly addresses the information provided in the source chunk. The answer is precise, complete, and accurately reflects the technical details (stiffness, ductility, failure mechanisms like bamboo slippage) mentioned in the text. | What specific structural behaviors and failure mechanisms were assessed in the flexural testing of bamboo-reinforced concrete beams using Linear Variable Differential Transformers (LVDTs) and strain gauges? | The testing assessed stiffness, ductility, load-deflection and load-strain curves, crack propagation, and strain distribution to identify causes of flexural failure, such as bamboo slippage and limitations in ductility. | chunk_0223 | e363816fd58422a8f4662ba9f7f594e6d23ee2b5 | Flexural Behavior of Bamboo Reinforced Concrete Beams Treated with Sikadur 32 F | 2,025 | https://www.semanticscholar.org/paper/e363816fd58422a8f4662ba9f7f594e6d23ee2b5 | e3638_Flexural_Behavior_of_Bamboo_Reinforced_Concrete_Beams_Treated_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the provided ANOVA table. The WGP factor indeed has the highest contribution (72.43%) among the individual factors listed, and the P-value is correctly identified as <0.001. | In the optimization model for green concrete properties using ceramic and GGBS waste, which linear factor contributed the largest percentage to the sequential sum of squares, and what was its P-value? | The WGP factor contributed the largest percentage to the sequential sum of squares at 72.43%, with a P-value of <0.001. | chunk_1744 | 9499aefa7cf6dfeb3fc7508dd85c52ef3ba7b13d | Optimization of green concrete properties using ceramic and GGBS waste | 2,026 | https://www.semanticscholar.org/paper/9499aefa7cf6dfeb3fc7508dd85c52ef3ba7b13d | 9499a_Optimization_of_green_concrete_properties_using_ceramic_and_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source, and the answer accurately reflects the technical relationships described in the text regarding Ca/Si ratios, polymerization, and mechanical properties. | What does a lower calcium-to-silicon (Ca/Si) ratio in recycled aggregate concrete indicate about the C-S-H gel microstructure and the resulting mechanical properties? | A lower Ca/Si ratio indicates a higher degree of C-S-H polymerization, which leads to the formation of denser and more robust C-S-H structures. This enhanced C-S-H network contributes to improved mechanical properties, specifically compressive and tensile strength. | chunk_2283 | 89d79cb5d114c3ba25dde8fa7b282cbc43080a91 | Impact of modified aggregate gradation on the workability, mechanical, microstructural and radiation shielding properties of recycled aggregate concrete | 2,025 | https://www.semanticscholar.org/paper/89d79cb5d114c3ba25dde8fa7b282cbc43080a91 | 89d79_Impact_of_modified_aggregate_gradation_on_the_workability,_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source text, and the answer accurately and precisely extracts the specific technical reasons provided in the text without adding outside information. | What factors are cited as causing hollow beam specimens with recycled ceramic aggregates to exhibit slightly lower agreement with ACI 318 shear predictions compared to conventional solid members? | The lower agreement is attributed to the reduction in effective web area and the altered internal stress trajectories induced by the longitudinal cavities, as the ACI 318 equations were originally developed for conventional solid reinforced concrete members. | chunk_0964 | a3b9b6c62bc67c3083e21f0aef5d04c06cb0fd52 | SHEAR STRESSES OF HOLLOW CYLINDRICAL CONCRETE BEAMS MADE WITH RECYCLED CERAMICS AGGREGATES | 2,026 | https://www.semanticscholar.org/paper/a3b9b6c62bc67c3083e21f0aef5d04c06cb0fd52 | a3b9b_SHEAR_STRESSES_OF_HOLLOW_CYLINDRICAL_CONCRETE_BEAMS_MADE_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the text and the answer accurately reflects the specific percentage increases and the reduction at 15% POFA as stated in the source chunk. | How did the flexural strength of calcium silicate (CS) concrete change when POFA was added at concentrations of 5%, 10%, and 15%? | The flexural strength of CS concrete increased by 8% with 5% POFA and by 18% with 10% POFA, reaching a maximum improvement of up to 20%. However, the flexural strength was somewhat reduced when 15% POFA was added. | chunk_2067 | 7080c29670aeb855965fdb381dbca8c55210d815 | Enhancing concrete durability and performance with coconut shell and POFA additives | 2,026 | https://www.semanticscholar.org/paper/7080c29670aeb855965fdb381dbca8c55210d815 | 7080c_Enhancing_concrete_durability_and_performance_with_coconut_shell_2026 | null | results_discussion |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the source chunk, and the answer accurately reflects the specific technical advantages of the Nord test mentioned in the text. | What is the primary reason the Nord test is considered an improvement over the salt ponding test for measuring chloride diffusion in concrete? | The Nord test removes the sorption effect and considers bulk diffusion and chloride ion movement at a constant temperature, unaffected by conductors in the concrete. | chunk_0494 | 54fdcb361d7553965e6448421d1216bda050cd79 | Partial Replacement of Cement with Ceramic Waste & Metakaolin Powder And Fine Aggregate With Brick Dust In M20 Concrete | 2,023 | https://www.semanticscholar.org/paper/54fdcb361d7553965e6448421d1216bda050cd79 | 54fdc_Partial_Replacement_of_Cement_with_Ceramic_Waste_&_2023 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is directly supported by the text, and the answer accurately synthesizes the two different reasons provided in the source chunk for maintaining the specific water-cement ratio (obtaining strength/durability and reducing permeability/facilitating comparison). | What is the stated purpose of maintaining a constant water-cement ratio of 0.38 in the coconut shell and silica fume concrete mixes? | The constant water-cement ratio of 0.38 was maintained to obtain the desired compressive strength and similar durability performance across all mixes, while also aiming to reduce permeability and facilitate the comparison of durability virtues at different silica fume and coconut shell replacement levels. | chunk_1977 | c0a7e41eeb55144dfd4e4abe119c14de799ca5ce | Durability assessment and machine learning-based prediction of coconut shell and silica fume concrete | 2,026 | https://www.semanticscholar.org/paper/c0a7e41eeb55144dfd4e4abe119c14de799ca5ce | c0a7e_Durability_assessment_and_machine_learning-based_prediction_of_coconut_2026 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question and answer are perfectly aligned with the source text. The answer directly addresses all parts of the question (comparison across curing conditions and the specific exception) using only the provided information. | How did the compressive strength of untreated oil palm shell (OPS) lightweight concrete (NT0) compare to that of SAE-treated samples across normal water, alternative, and open curing conditions, and what was the specific exception noted? | Untreated OPS concrete (NT0) exhibited lower compressive strength than SAE-treated samples across all curing conditions, except for the concrete treated with 25% SAE (ST25). | chunk_0239 | 151babec3c635e5e31791cddf905babacabf73c1 | Impact of Styrene Acrylic Emulsion (SAE) Treatment and Curing Conditions on the Water Absorption, Porosity and Air Permeability of Oil Palm Shell Lightweight Concrete | 2,025 | https://www.semanticscholar.org/paper/151babec3c635e5e31791cddf905babacabf73c1 | 151ba_Impact_of_Styrene_Acrylic_Emulsion_(SAE)_Treatment_and_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question asks for specific mean values from the test dataset columns of the provided table. The answer correctly identifies the mean RMSE (0.4138) and mean R2 (0.9990) as listed in the 'MEAN' row under the 'Test' section. | What were the mean Root Mean Square Error (RMSE) and coefficient of determination (R2) values for the Multilayer Perceptron (MLP) model on the test dataset across the evaluated random seeds? | The mean RMSE was 0.4138 and the mean R2 was 0.9990. | chunk_2622 | e034ea456946bf44055b510695d930005f1a5ec1 | Harnessing AI For Sustainable Construction: Predicting and Optimizing Recycled Aggregate Concrete with Krn-PSO | 2,025 | https://www.semanticscholar.org/paper/e034ea456946bf44055b510695d930005f1a5ec1 | e034e_Harnessing_AI_For_Sustainable_Construction:_Predicting_and_Optimizing_2025 | null | methodology |
5 | 5 | 5 | 5 | 5 | 5 | keep | The question is highly relevant and specific to the technical details provided in the source chunk. The answer is factually correct, fully grounded in the text, and accurately captures all the requested parameters (radiation, wavelength, speed, range, voltage, and current) without adding outside information. | What specific X-ray diffraction (XRD) parameters, including radiation source, wavelength, scanning speed, 2θ range, voltage, and current, were used to record the crystalline size and phases of bagasse ash, calcined dolomite, and their binary mixture? | The XRD analysis was performed using CuKα radiations with a wavelength of 1.54 Å at a scanning speed of 0.02° s⁻¹ in a 2θ range of 10 to 80° under 30 kV and 25 mA. | chunk_2574 | d2abc03d022ad0eec56d8482ea18d4fb629b9095 | Experimental investigation on partial cement replacement with binary blended bagasse ash and calcined dolomite for enhanced C-25 grade concrete performance | 2,025 | https://www.semanticscholar.org/paper/d2abc03d022ad0eec56d8482ea18d4fb629b9095 | d2abc_Experimental_investigation_on_partial_cement_replacement_with_binary_2025 | null | methodology |
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