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The study included a detailed examination of the crack resistance of heavy concrete and foam concrete that were not subjected to autoclave curing. An important aspect of this study was the use of polypropylene fiber as a reinforcing material, which made it possible to identify differences in the characteristics between reinforced and unreinforced samples. The purpose of the work was to evaluate the mechanical properties of the materials under study, as well as their behavior during destruction. For this purpose, the criteria of fracture mechanics were used, which made it possible to establish not only the strength and deformation characteristics, but also the force and energy indicators of crack resistance. The experimental results showed that the addition of polypropylene fiber significantly improves the strength characteristics of both heavy concrete and foam concrete. This improvement was especially noticeable in the case of foam concrete, which, due to reinforcement, demonstrated increased crack resistance. This is due to the fact that polypropylene fiber promotes a more uniform distribution of stress in the material, which in turn reduces the likelihood of cracking and improves resistance to destruction. In addition, the study confirmed that the use of polypropylene fiber not only increases strength, but also improves the durability of concrete, making them more suitable for use in construction, especially in conditions where materials are subject to significant mechanical loads and adverse environmental factors.
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2. Nesvetaev G.V., Potapova Yu.I. Influence of polypropylene fiber on the properties of concrete mix and concrete. Building materials. 2020. No. 8. P. 42 – 48.
3. Klyuev S., Fediuk R., Ageeva M., Fomina E., Klyuev A., Shorstova E., Zolotareva S., Shchekina N., Shapovalova A., Sabitov L. Phase formation of mortar using technogenic fibrous materials. Case Studies in Construction Materials. 2022. V. 16. P. e01099.
4. Klyuev S., Fediuk R., Ageeva M., Fomina E., Klyuev A., Shorstova E., Sabitov L., Radaykin O., Anciferov S., Kikalishvili D., de Azevedo Afonso R.G., Vatin N. Technogenic fiber wastes for optimizing concrete. Materials. 2022. 15 (14). P. 5058.
5. Nesvetaev G.V., Vinogradova E.V., Lopatina Yu.Y. On the issue of choosing criteria for the effectiveness of concrete. Scientific review. 2016. No. 2. P. 34 – 41.
6. Mailyan L.R., A.L. Fibroconcrete. Prospects of development and application. Construction and architecture. 2019. 3. P. 36 – 38. DOI: https://doi.org/10.29039/2308-0191-2019-7-3-36-38
7. Li V.C., Yang E.H. Engineered Cementitious Composites: Material, Structural and Durability Performance. Concrete Construction Engineering Handbook. 2019. 24. P. 46 – 78.
8. Amran M., Fediuk R., Klyuev S., Qader D.N. Sustainable development of basalt fiber-reinforced high-strength eco-friendly concrete with a modified composite binder. Case Studies in Construction Materials. 2022. 17. e01550.
9. Pukharenko Yu.V., Aubakirova I.U. The effectiveness of the use of fibrocrete in modern construction. Bulletin of Civil Engineers. 2020. 2. P. 123 – 130.
10. Rabinovich F.N. Composites based on dispersed reinforced concrete: theory and practice. Building materials. 2019. 6. P. 34 – 42.
11. Pukharenko Yu.V., Aubakirova I.U. The effectiveness of the use of fibrocrete in modern construction. Bulletin of Civil Engineers. 2020. 2. P. 123 – 130; Rabinovich F.N. Composites based on dispersed reinforced concrete: theory and practice. Building materials. 2019. 6. P. 34 – 42.
12. Stepanova V.F., Falikman V.R. Modern methods of studying the crack resistance of fibroconcrete. Building Materials. 2021. 2. P. 78 – 85.
13. Bazhenov Yu.M., Demyanova V.S. Technology and properties of modern fiber-reinforced concrete. Construction materials, equipment, and technologies of the 21st century. 2020. 5. P. 35 – 42.
14. Lesovik R.V., Klyuyev S.V., Klyuyev A.V., Netrebenko A.V., Yerofeyev V.T., Durachenko, A.V. Fine-Grain concrete reinforced by polypropylene fiber. Research Journal of Applied Sciences. 2015. 10 (10). P. 624 – 628.
15. Lesovik R.V., Klyuyev S.V., Klyuyev A.V., Tolbatov A.A., Durachenko A.V. The Development of textile fine-grained fiber concrete using technogenic raw materials. Research Journal of Applied Sciences. 2015. 10 (10). P. 696 – 701.
16. Lesovik R.V., Klyuyev S.V., Klyuyev A.V., Netrebenko A.V., Kalashnikov N.V. Fiber concrete on composite knitting and industrialsand KMA for bent designs. World Applied Sciences Journal. 2014. 30 (8). P. 964 – 969.
Mikhailova S.V. Optimization of concrete composition with polypropylene fiber to improve their crack resistance in road construction conditions. Construction Materials and Products. 2025. 8 (2). 5. https://doi.org/10.58224/2618-7183-2025-8-2-5