bluuebunny/crossref_metadata_2025_split huggingface dataset:
Correlation study of asphalt modulus with asphalt immersion time using of lightweight deflectometer laboratory
Authors: Ma’Bud M A R , Djamaluddin A R , Amiruddin A A 
Published: March 2021

Abstract
During The rainy season, the pavement is submerged by water, which affects the performance, durability, and ability to accept the load on the asphalt. Lightweight deflectometer (LWD) developed for evaluation of surface stiffness can be used to estimate the degree of compaction and produce modulus of elasticity. This research using the laboratory version of the LWD to find the correlation between the modulus of elasticity of asphalt on the variation in the Immersion time. From each immersion time, the highest Elasticity modulus value was decreased when it moved from 6,25% because that value is an optimum condition for asphalt samples.
Project planning system improvement in residential development project: A risk analysis
Authors: Arief M , Latief Y 
Published: March 2021

Abstract
Project planning must be an integral part of the housing construction industry so that project performance can be achieved more efficient and have an impact on schedule performance. A clear and detailed understanding is needed of what is within the scope of the project and what are the risks identified in the project planning phase. Project planning is expected to be able to provide solutions to detailed work structures as well as flexibility to be able to adapt to the environment of unique project activities and to accommodate the project’s organizational system and business changes or improvements made by the company. This study aims to parse the risks in project planning of residential development projects by identifying 10 knowledge areas and 24 planning processes in the 6th edition of the 2017 PMBOK (Project Management Body of Knowledge) using qualitative risk analysis approach to create an understanding and to mitigate the high risk factor. Referring the research results, a preventive action in each of the high risk indicator has been prepared to be integrated in the planning guideline (standard operating procedure). This risk analysis performed to be used as a strategy to improve the residential development schedule performance.
The Standard Operational Procedure (SOP) development of fire-safety system in Jakarta Mass Rapid Transit (MRT) based on risk analysis
Authors: Retriana G N 
Published: March 2021

Abstract
Mass Rapid Transit (MRT) is one of the most useful transportations in Jakarta. The passengers of MRT gradually increase when compared to previous users. However, MRT has a potential fire and it definitely will create the number of victims. Prevention efforts such as Standard Operational Procedure (SOP) of appropriate fire safety system. This study aims to know a gap between regional regulations related to fire safety system with the existing Jakarta MRT fire safety SOP, to identify the dominant risk factors in the Jakarta MRT fire safety SOP and to develop a fire safety system SOP on the MRT in Jakarta. The method used in this study is based on research strategies consisting of archive analysis, literature study, survey and case study. The result showed that there was a gap between MRT Jakarta Standard Operational Procedures and Building Fire Safety Regulations for Buildings in Indonesia. The SOP development of fire-safety system in Jakarta Mass Rapid Transit (MRT) is no specific SOP that defines the description of activities within meet fire safety SOPs. In conclusion, the making of the procedures in this study update the old procedures and make new procedures for processes, which do not have procedure yet.
Mechanical properties of normal concrete for local road pavement using plastic waste substitution as course aggregate
Authors: Mulyono T , Saefudin A , Purnomo A , Widiasanti I 
Published: March 2021

Abstract
Plastic waste can decrease the carrying capacity of the environment, only about 4% can be recycled. Through research, it is expected to be one of the solutions to the use of plastic waste to reduce environmental impacts. The use of substitution of plastic waste as coarse aggregate in the weight-volume mixture with proportion of 2%, 4%, 6%, 8% and 10% in normal concrete used for local roads and determining the mechanical properties are the aims of this research. The results showed that the compressive strength for reference concrete was 21.268 MPa greater than designed (fc = 19.3 MPa) and with a mixture of plastic waste respectively 13.298 MPa, 14.430 MPa, 11.506 MPa, 6.602 MPa, 6.602 MPa 6.602 MPa and 5.753 MPa. The tensile strength of the reference concrete is 2.853 MPa, and compared with substitution of 1.981 MPa, 2.216 MPa, 1.863 MPa, 1.155 MPa and 1.179 MPa. The flexural strength test below and do not meet the criteria for the local roads (3 MPa). Plastic waste up to 10% substitution shows the lowest decrease with 4% plastic waste resulting in 19.5% decrease in flexural strength compared to reference concrete and every 2% increase plastic was 10-20% flexural strength decreases.
Analysis of safety cost structure for mechanical work in rental apartements projects in special capital district of Jakarta based on Work Breakdown Structure (WBS)
Authors: Purwanti A D , Latief Y 
Published: March 2021

Abstract
Since the implementation of the policy of accelerating infrastructure projects, the construction industry has also increased in Indonesia. The construction industry is a dangerous industry that often takes casualties. In recent years there have been many construction accidents in the construction of rental apartments, which have caused moral and material losses, projects that were stopped and projects that were delayed. Lack of separate budgets that are specifically prepared in implementing the Occupational Safety and Health System is one of the causes of the poor implementation of SMK3 in construction projects and create high rates of accidents in the workplace. In Indonesia, although there are several regulations governing the implementation of SMK3, there are no specific regulations that regulate how to prepare a reasonable budget for the implementation of SMK3. The aims of the study are determining the work breakdown structure in mechanical work in rental apartments identifying risks, developing risk control, identifying components of cost of safety and calculating of safety cost. This research is a survey research with respondents of experts and actors in the field of construction safety, descriptive analysis is used to determine variables. A case study approach is also used to calculate the cost of safety. This research is expected to be able to produce a cost of safety calculation in rental apartments projects so that it can maximize the application of SMK3, in order to reduce accidents in workplace and achieving good safety performance.
Compressive strength of pervious concrete paving blocks for pavement with the addition of fly ash
Authors: Septiandini E , Widiasanti I , Pamungkas C A , Putri A S S , Mulyono T , Abdul N Z P 
Published: March 2021

Abstract
Pervious concrete paving blocks (PCPB) is a material that widely used for the surface layer of road either for traffic or non-traffic needs. The main characteristic is the pores within the concrete which can allow water to pass through so it can prevent inundation when rain comes. Good absorption rate is not in line with its compressive strength. In order to enhance its compressive strength, some fly ash was added to the weight of the cement in the mixture. Fly ash (FA) is a coal combustion residue that has similarity with cement content and properties. Admixture for pervious concrete typed SikaMix-10 NT were added to increase the workability of the mixture. This research uses quantitative methods based on the results of experiments conducted in the laboratory. The planning of mixture refers to the ACI 522R-10 standard. Several tests were carried out to determine the quality such as compressive strength test, infiltration test, porosity test and wear resistance by analysing the results guided by SNI 03-0691-1996. The results generally showed that the addition of some fly ash was made to have compressive strength, absorption, porosity and wear resistance that has fulfilled C classification for application in pedestrian paths or sidewalks.
Structural Equation Model (SEM) relationship between location and building height and Work Breakdown Structure toward safety costs at rental apartement project
Authors: Mahmudah Z , Latief Y 
Published: March 2021

Abstract
Occupational Health and Safety at the construction is still hampered from the budget side and mindset that OHS is an additional cost. As a result, decisions related to OHS may not be based on ethical considerations and basic rights to a safe workplace, but in the economic field. This study focuses on analyzing the relationship of building location, height of building and work breakdown structure to OHS costs and further reviewing the factors in these variables that are the dominant effect on OHS costs. The purpose of this study is to analyze the factors in each variable that has a dominant effect on occupational health and safety cost and analyze the relationship between location variable, height of building and WBS to the health and safety cost model in at flat construction projects using Structural Equation Model - Partial Least Square (SEM-PLS).
Influence of road traffic vehicle volume with damage and road safety
Authors: Farida I , Awliya H D , Purnamasari I , Nanang N , Johari G J 
Published: March 2021

Abstract
Increasing population and vehicles on the road will be accompanied by increased transportation needs so that the traffic density cannot be avoided. Generally, happens on a national road route, which is a connecting road between the provincial capital and a national strategic highway. The traffic density is potentially a bottleneck, road damage, and traffic accidents. The research aims to determine the influence of vehicle volume against the damage and safety of roads in one of the national roads in West Java. The Data sourced from road planning and supervision, the police sector, and field Survey Board. The methods used Bina Marga method to determine the number of road damage, RCI, and IRI methods to assess the value of road conditions, and to determine the influence of inter-variable, road safety inspection refers to the test of the roadway to evaluate roadworthiness of road functions. The results of the study gained that the impact of vehicle volume on road traffic damage and categorized accidents was insignificant. The dominant factor in the traffic accident that occurs caused by carelessness and unorderly driving. These roads in the road category are still eligible and recommended for routine maintenance.
Effect of addition of palm shell ash and asphalt emulsion for bearing capacity on clay soils
Authors: Morissa M , Syahril S 
Published: March 2021

Abstract
Soil stabilization is a method to improve soil properties either by mechanical means or by adding another material to the soil with the purpose is to increase the strength or bearing capacity of the subgrade to the construction built on it. Subgrade with low bearing capacity can cause damage or collapse of construction above it. In this study, the type of stabilized soil is clay. Repairing this subgrade by adding addictive material to the clay using palm shell ash and asphalt emulsion with 8% of palm shell ash content as a dependent variable and emulsion asphalt of 3%, 6%, 9%, and 12% as an independent variable. The purpose of this step is to get the optimum mixture content as a stabilizing agent. Based on testing, the optimum mixture content is 8% palm shell ash+9% emulsion asphalt. The addition of this addictive material can reduce water content by 13.23%, plastic index by 74.47%, and shrinkage by 43.75% during the 14 days curing period, and increase the bearing capacity of subgrade through CBR testing of unsoaked and soaked respectively each of 114.15% during the curing period of 14 days and 211.1% during soaking of 4 days after curing period of 14 days. Based on the result of testing, this addictive material can be used as a stabilizing material.
Enveloping transmission tower conductor line 150 kV Siantan-Sei Raya Kalimantan using rubber silicon
Authors: Wibowo P A , Rasgianti R , Anggarani B O 
Published: March 2021

Abstract
The analysis was done by modeling using MS Tower software, by comparing the stress ratio of the existing conditions with the addition of silicon rubber. Load combinations simulated with conditions; a) Normal conditions;b)Variation of two broken lead wires; and c) normal combination with wind. The results modeling on MS tower, The addition of silicon rubber obtained an increase in the stress ratio on the tower structure by 0.035 compared to before the addition (existing conditions). The greatest stress ratio is obtained when normal load conditions are combined with wind. At a wind speed of 10 mph the tower condition is safe because it is still far from the permit voltage limit. Furthermore, when the wind speed is 15 mph, the voltage ratio that occurs begins to approach the value of 1 (almost close to the permit voltage). While at a wind load of 20 mph, an indication of failure on the tower begins, which is shown from the results of the analysis having a voltage ratio> 1. Based on these results, the addition of silicon rubber can be carried out with wind conditions smaller than 20 mph.
Effects of subgrade stabilized with calcite and asphalt emulsion
Authors: Tarigan P J S B , Syahril S 
Published: March 2021

Abstract
Improvement of the soft soil as a subgrade has done a lot and one of them is soil stabilization. This soil stabilization is to change the physical and mechanical properties of a soft soil by mixing certain materials. The type of the soil is expansive clay. In this experiment, the stabilization materials that chosen are calcite and asphalt emulsion. The variation of the soft soil mixture that will be stabilized is using calcite of 6%, 9%, 12%, 15%, 18%, and asphalt emulsion of 8% as a fixed variable. The results of plasticity index of the stabilization soil decreased by 81%. The water content obtained from soil stabilization also decreases with values between 22% to 30%. Then, CBR testing was done with the variation time of 0, 3, 7, 14 days for unsoaked condition and 4 days for soaked condition. The CBR value of the stabilization increased 120% for unsoaked and 211% for soaked. Based on the results of this experiments, a mixture of calcite and asphalt emulsion can be used for an expansive clay soil as a subgrade of a pavement structures.
Study of flexural strength on concrete bundled bars beams
Authors: Walujodjati E , Tjondro J A , Permana S , Johari G J 
Published: March 2021

Abstract
Reinforced concrete beams as structural elements that are often found are elements that are quite large in their role in bearing loads. Judging from the function of support as a bearer of tensile force, it is possible if the reinforced concrete beams are made with different numbers and areas of reinforcement. Reinforcement bundles are used if there is a cross-sectional dimension limitation without the distance between the reinforcement conditions being met. Beams with 2 reinforcement bundles are made to see the flexural capacity obtained. With the dimensions of the beam 150 mm x 200 mm x 1050 mm, a bundle of 2 reinforcement with a diameter of 10 mm is mounted on the tensile section of reinforced concrete beams. With a four-point bending test, a nominal bending moment is obtained. Single-section square cross-section analysis with cross-sectional area obtained using the equivalent diameter of the reinforcement bundle compared to the flexural test results. The bending moment capacity between experiment and analysis obtained the appropriate results. The bending capacity value of the two reinforcement bundles is still large so that the bending failure has not been reached.
Model of settlement environment for flood prone areas on the bank of Cimanuk river Garut
Authors: Susetyaningsih A , Permana S , Afghan M B , Yogaswara D , Purnamasari I 
Published: March 2021

Abstract
Settlements along the river are dwellings that are vulnerable to flooding. It is not easy to move residents from the area because of the strategic and economic value of the area for urban residents. The purpose of this study is to find solutions for flood-prone areas by making settlement plans to minimize the impact of flood disasters. The study was conducted in Rw. 10 and Rw.19 in Cimacan, Haurpanggung Village, Tarogong Kidul District, Garut Regency. Research data were collected using the interview survey method. To get a history of floods that have been experienced by residents, a questionnaire was used with the snowball method. Respondents taken were 22 respondents who had lived in 2 RWs for at least 5 years. Based on the results of the study note the average flood height of 40-50 cm with the distance of water entering the settlement 50-60 meters from the river bank. The average number of houses submerged by floods is 40-50. To minimize the impact of losses from flood disasters, it is necessary to re-arrange the settlement space in Cimacan Village by setting green land in the no-go zone for building settlements, making infiltration wells, and modifying house building models.
Comparison of snyder synthetic unit hydrograph with measured unit hydrograph on Bionga Kayubulan
Authors: Labdul B , Alitu A 
Published: March 2021

Abstract
Generally, the synthetic unit hydrograph had to be developed just like a kind of Snyder that found accord empire scientific in the United States. Determination of their parameters has been presented by various criteria, but so far, the results are still relatively deviated for watershed-watersheds in Indonesia. The study was conducted to Bionga Kayubulan sub-watershed that has properties and characteristics that need to be conducted regarding irregularities by comparing models HSS Snyder with unit hydrograph observations on sub-watershed. Hydrograph water level readings AWLR derived from a flood hydrograph, using the are discharge. to separate the base flow with runoff straight-line method is used to produce direct runoff hydrograph. From the data obtained ARR hourly rainfall records were then analyzed, using the equation effective rainfall of index Φ. Direct runoff hydrograph and rainfall effectively revealed to be the observation unit hydrograph using collins method. Based on topographic maps obtained watershed physical factors were then used to analyze HSS Snyder. Further comparison of the HSS Snyder constant adjustments made using software Microsoft Excel-Solver. Observation unit hydrograph Bionga Kayubulan sub watershed has a peak time (Tp) of 4.5 hours with a peak discharge (Qp) of 2.81 m3/sec while Snyder HSS obtained from the analysis of Tp and Qp of 5.15 hours of 0.33 m3/sec. The test results showed that the predicted ratio Snyder HSS HSS calibration better than Snyder before calibration. CE adjusted value is 0.11 and as adjusted to 0.93. The value of EV adjusted is 65.20% before and after adjustment to 2.70%. EQP value addition, AETR values, and values after adjusting widened AETp 0 hours.
Identification of variables causing delays to turnaround maintenance project
Authors: Gunawan N 
Published: March 2021

Abstract
Maintenance activities or turnaround maintenance that exceeds the specified time, and unscheduled shutdown or unplanned shutdown events are factors that cause production loss and reduce the company’s profit potential which ultimately leads to losses for the company. This research aims to Identify the current turnaround maintenance planning process contributed to the extension of the duration of the turnaround maintenance work, Identifying methods to shorten the duration of turn around maintenance and developing methods to optimize turn around maintenance work so that turn around maintenance work can be carried out effectively, according to the planned time and with good quality. Qualitative risk assessment is being carried out based on turnaround maintenance project reports from previous turnaround maintenance projects and expert judgment are used to ensure risks are identified, analysed and mitigated. Risks are ranked by their likelihood and severity that may cause delays to projects. Methods to shorten duration and recommendations are raised to ensure effective turnaround project. The research was conducted in a fertilizer company PT XYZ.
Verification of modulus of subgrade reaction experimental based on plate deflection
Authors: Zhafirah A , Somantri A K , Walujodjati E , Mulyana S 
Published: March 2021

Abstract
This study aims to verify the modulus of subgrade reaction test results of the plate load test or empirical formula based on the deflection of the finite element analysis results that are closest to the deflection of the concrete plate loading test results in the laboratory. Modulus of subgrade reaction experimentally obtained from the plate load test results. While the modulus of subgrade reaction using an empirical formula, according to FEMA 356, is calculated using an equation that is influenced by the value of the shear modulus, Poisson ratio, and plate dimensions. The method in this study is analysis and experimental. The verification is carried out by finite element analysis by adjusting the dimensions and parameters of the material with an experimental model for loading concrete plate in the laboratory. Verification of the modulus of subgrade reaction carried out by looking at the deflection of the finite element modeling, which is the closest to the deflection of the experimental results of loading concrete plate in the laboratory. The modulus of the verified subgrade reaction is the value obtained based on the empirical formula because it has almost the same deflection compared to the experimental soil modulus value.
The effect on land-use changes on water availability in the Cidongkol Irrigation Area
Authors: Permana S , Zhafirah A , Johari G J , Purnamasari I , Farida I 
Published: March 2021

Abstract
The city of Tasikmalaya has now changed, especially in the field of infrastructure. The impact of infrastructure development affects uncontrolled land-use change. One of the transportation infrastructure built by the City of Tasikmalaya Government is Mangin Road. Paddy fields that meet the area gradually began to become settlements. Transfer of land functions in the area, resulting in reduced paddy fields. The Cidongkol Irrigation Area currently has a 116 ha rice field area from an initial 192 ha area. The purpose of this study was to determine the fulfilment of the rice field area and to be associated with previous research. The data processing method is analyzing the availability that comes from Cikalang Channel and water needs. In the initial condition, the required discharge of about 92% was not fulfilled. Whereas with an area of 116 ha of rice fields, around 92% was not met. Cikalang Channel serves 246 ha of paddy fields. With conditions like this, Cikalang Channel is not able to serve the entire area. To meet water needs, farmers use modified cropping patterns. The City Government of Tasikmalaya has managed the excavation area, and part of the land has been replanted to restore its function.