Development of effective fiber-reinforced concrete compositions used in transportation structures
DOI:
https://doi.org/10.15587/1729-4061.2021.227139Keywords:
fiber-reinforced concrete, silica fume, concrete microstructure, crack resistance, deformation properties, durability, unloading structureAbstract
The possibility of producing fiber-reinforced concrete with high deformation properties by regulating the microstructure and using it in the design of transport structures was considered. It was found that to create high-performance transport structures, it is necessary to modify fiber mixtures with complex additives, i. e. increase the strength of fiber-reinforced concrete at the micro-level. To obtain a denser structure of the concrete matrix, complex additives were used – ultrafine additive (silica fume) and Master Air 200 B air-entraining additive. It was experimentally proved that using such additives reduces the water-cement ratio and further strengthens the concrete matrix structure.
The design of the unloading structure on the railway line constructed from the Karadag station (Republic of Azerbaijan) to the SOCAR oil and gas processing and petrochemical complex using fiber-reinforced concrete modified with complex additives was made. The results of designing the fiber-reinforced concrete unloading structure were analyzed and the results of designing the fiber-reinforced concrete unloading structure and the regular concrete unloading structure were compared. As a result of the comparison, it was found that using fiber-reinforced concrete decreases the cross-section diameter of the effective reinforcement of the slab – the cross-section diameter of the effective reinforcement of the pavement slab decreases from Æ2×32 mm to Æ32 mm in the upper and Æ25 mm in the lower row, respectively. Crack resistance is also increased compared to regular concrete.
Thus, in order to create structures with high transport and operational parameters, it is necessary to modify fiber-reinforced concrete mixtures with complex additives
References
- Shirinzade, I. N., Аhmedov, N. М. (2017). Ways of improving the efficiency of fiber concrete. International Research Journal, 3 (57), 107–110. doi: https://doi.org/10.23670/IRJ.2017.57.125
- Fibrobeton: tehniko-ekonomicheskaya effektivnost' primeneniya (2002). Promyshlennoe i grazhdanskoe stroitel'stvo, 9. Available at: http://vekha.ru/fibrobeton-tehniko-ekonomicheskaya
- Singh, L. P., Agarwal, S. K., Bhattacharyya, S. K., Sharma, U., Ahalawat, S. (2011). Preparation of Silica Nanoparticles and its Beneficial Role in Cementitious Materials. Nanomaterials and Nanotechnology, 1 (1), 44–51. doi: https://doi.org/10.5772/50950
- Zhang, P., Li, Q.-F. (2013). Freezing–thawing durability of fly ash concrete composites containing silica fume and polypropylene fiber. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 228 (3), 241–246. doi: https://doi.org/10.1177/1464420713480984
- Nematzadeh, M., Karimi, A., Fallah-Valukolaee, S. (2020). Compressive performance of steel fiber-reinforced rubberized concrete core detached from heated CFST. Construction and Building Materials, 239, 117832. doi: https://doi.org/10.1016/j.conbuildmat.2019.117832
- Klyuyev, S. V. (2012). High-strength fiber concrete for industrial and civil construction. Magazine of Civil Engineering, 8, 61–68. doi: http://doi.org/10.5862/MCE.34.9
- BS EN 206-1:2000. Specification, performance, production and conformity. Available at: https://shop.bsigroup.com/ProductDetail/?pid=000000000030148156
- Savel'ev, V. G., Gorshkov, V. S. (1981). Metody fiziko-himicheskogo analiza vyazhuschih veschestv. Moscow: Vysshaya shkola, 334.
- Bragov, A. M., Konstantinov, A. Yu., Lamzin, D. A., Lominov, A. K., Filippov, A. R. (2012). Dinamicheskoe deformirovanie i razrushenie hrupkih strukturno-neodnorodnyh sred. Vestnik Nizhegorodskogo universiteta im. N. I. Lobachevskogo, 4, 59–66
- Razrabotka metoda rascheta, printsipov konstruirovaniya i tehnologii stroitel'stva sloev usileniya aerodromnyh pokrytiy iz fibrobetona (2003). Moscow, 28. Available at: https://wolwekplus.ru/images/Raero.pdf
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