# High-Performance Concrete Nanomodified with Recycled Rice Straw Biochar
## 4 Discussion  
In order to fully evaluate the contribution of the study to science and practice, one should compare the work performed with the work previously carried out by other authors [1; 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38]. Let us compare studies in terms of different approaches: methodology, technology, research, analysis, and practical applicability.  
From the point of view of methodology, our study, for the first time, applied an integrated approach based on a detailed study of the characteristics of the product of processing agricultural waste--straw after its processing. Thus, we are primarily interested in a detailed analysis of the raw materials used, and then we identify the relationship between the final characteristics of the resulting concrete conglomerate nanomodified with processed rice straw biochar. Thus, we track each cycle of the study and fix the result at each stage step by step.  
From the point of view of technology, the article has a difference in that it describes the methods of processing waste products and their disposal, prescription, and technological factors that affect the process of manufacturing a concrete conglomerate with nanomodification, and, thus, this technological approach is different from those previously carried out [1; 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38].  
From the research point of view, we used various methods:  
* Comparison of the results of the improved concrete with the results of the base sample;
* Mechanical and physical testing of samples in a number of experiments;
* Numerical processing and prediction of results due to the performed mathematical calculations and the determination of mathematical dependence;
* Microscopic analysis of the structure of raw materials for a detailed presentation and obtaining new knowledge and development of existing ideas about the raw materials used, which is the initial component for improved concretes.  
Finally, all the necessary dependencies on the initial components are analytically fulfilled. The chemical, physical and mathematical aspects of the study were evaluated. Thus, the article is, at the same time, a scientific study aimed at obtaining new knowledge and developing existing ideas about concretes obtained from agricultural waste. At the same time, it has practical significance in view of the fact that it allows solving a significant problem not only of the construction complex, as the final consumer of our scientific and practical result, but also of agriculture, which, of course, can be an interested party and supplier of raw materials, which at present in excess.  
In terms of the result obtained, compared to the results obtained by other authors, an improvement in the increase in strength characteristics and other quantitative indicators of the obtained nanomodified concrete was achieved. Thus, the authors of works [5; 16; 19] obtained increases in strength characteristics at a 28-day age of concrete from 11% to 22% by modifying the composition with the addition of rice hus  
Figure 13: Tensile stress-strain diagram.  
prescription recommendations have made it possible to increase the strength characteristics of concrete at 28 days of age from 17% to 25%. The \"stress-strain\" diagrams, built by us based on the results of the composition obtained by us, made it possible to identify an improvement in the deformation characteristics. Thus, the recipe-technological methods we used yielded an improved effect compared to the works performed earlier by other authors [5,16,19].  
Thus, the article is not only of an applied technological nature but is also aimed at obtaining economic efficiency, the calculation of which is our next task, and the prospects for the study can be defined as the direction of further work within the framework of scaling from technological to ecological and economic direction.