English
Русский 5-16 p.
The trend in building materials science is to replace the different proportions of Portland cement in the binder. Therefore, the paper proposes the principles of controlling the static and dynamic strength of fiber-reinforced concrete, consisting in the complex effect of the hydro-removed ash and slag mix and basalt fiber on the processes of structure formation of the cement composite. A four-stage purification system for the hydro-removed ash and slag mixture has been developed, including disintegration, flotation and two-stage magnetic separation. It was found that the density of the fresh mix from the dose behaves naturally, and the density of solid samples at low doses slightly decreases. High early strength of the developed composites is noted, in particular, for specimens with ASM, one and a half increase in compressive strength is traced in comparison with non-additive specimens. Combinations of "fiber + ASM" with a quadrupling of strength have a significant effect on bending strength. Successful approximations of the compressive strength and bending strength on the ASM dose for different ages (1, 7, 28 days) are traced with the regular behavior of the coefficients in the power dependences. Revealed a multiple increase in the impact strength of the developed compositions. The use of the results will lead to the possibility of designing high-strength concretes, including for special structures.
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2. Yarusova S.B., Gordienko P.S., Kozin A.V., Zhevtun I.G., A V Perfilev. Influence of synthetic calcium silicates on the strength properties of fine-grained concrete. IOP Conf. Series: Materials Science and Engineering. 2018. 347. 012041 doi:10.1088/1757-899X/347/1/012041
3. Fedyuk R.S., Mochalov A.V., Lesovik V.S. Sovremennye sposoby aktivacii vyazhushchego i beton-nyhkh smesej (obzor). Vestnik Inzhenernoj shkoly Dal'nevostochnogo federal'nogo universiteta. 2018. 4 (37). P. 85 – 99. (rus.)
4. Klyuev S.V., Khezhev T.A., Pukharenko Yu.V., Klyuev A.V. Fiber Concrete on the basis of compo-site binder and technogenic raw materials. Materials Science Forum. 2018. 931. P. 603 – 607.
5. Fedyuk R.S. Primenenie syr'evyh resursov primorskogo kraya dlya povysheniya effektivnosti kompozicionnogo vyazhushchego. Vestnik Rossijskogo universiteta druzhby narodov. Seriya: Inzhenernye issledovaniya. 2016. 1. P. 28 – 35. (rus.)
6. Fedyuk R.S., Mochalov A.V., Lesovik V.S., Gridchin A.M., Fisher H.B Kompozicionnye vyazhushchie i samouplotnyayushchiesya fibrobetony dlya zashchitnyh sooruzhenij. Vestnik Belgorodskogo gosudarstvennogo tekhnologicheskogo universiteta im. V.G. SHuhova. 2018. 7. P. 77 – 85. (rus.)
7. Yoo D.-Y., Banthia N. Mechanical properties of ultra-high-performance fiber-reinforced concrete: A review. Cement and Concrete Composites. 2016. 73. P. 267 – 280.
8. Low N.M.P., Beaudoin J.J. The effect of wollastonite micro-fibre aspect ratio on reinforcement of Portland cement-based binders. Cement and Concrete Research. 1993. 23. P. 1467 – 79.
9. Ransinchung G.D., Kumar B., Kumar V. Assessment of water absorption and chloride ion penetration of pavement quality concrete admixed with wollastonite and microsilica. Construction and Building Materials. 2009. 23. P. 1168 – 1177.
10. Kalla P., Misra A., Gupta R.C., Csetenyi L., Gahlot V., Arora A. Mechanical and durability studies on concrete containing wollastonite-fly ash combination. Construction and Building Materials. 2013. 40. P. 1142 – 50.
11. Fediuk R.S. Mechanical Activation of Construction Binder Materials by Various Mills. IOP Conference Series: Materials Science and Engineering. 2016. 125 (1). P. 012019.
12. Yarusova S.B, Gordienko P.S., Sharma Y.S., Perfilev A.V., Kozin A.V. Industrial Waste as Raw Material for Producing Synthetic Wollastonite in Russia. International Journal of Environmental Science and Development. 2017. 8 (2).
13. Mathur R., Misra A.K., Goel P. Influence of wollastonite on mechanical properties of concrete. Journal of Scientific & Industrial Research. 2007. 66. P. 1029 – 1034.
14. Jindal A., Ransinchung R.N., Kumar P. Behavioral study of self-compacting concrete with wollastonite microfiber as part replacement of sand for pavement quality concrete (PQC). International Journal of Transportation Science and Technology. 2019. https://doi.org/10.1016/j.ijtst.2019.06.002
15. Sharma S.K. Properties of SCC containing pozzolans, Wollastonite micro fiber, and recycled aggregates. Heliyon. 2019. 5 (8). e02081. DOI: 10.1016/j.heliyon.2019.e02081
16. Kumar B.J., Ramujee K. Mechanical and Durability Characteristics of Wollastonite Based Cement Concrete. I-manager’s Journal on Civil Engineering. 2017. № 7 (1). P. 1 – 7. https://doi.org/10.26634/jce.7.1.10363
17. Lukutsova N.P., Karpikov E.G., Golovin S.N. Highly-Dispersed Wollastonite-Based Additive and its Effect on Fine Concrete Strength. Solid State Phenomena. 2018. 284. P. 1005 – 1011. DOI: 10.4028/www.scientific.net/SSP.284.1005
18. Hossain S.K.S., Yadav S., Majumdar S., Krishnamurthy S., Pyare R., Roy P. A comparative study of physico-mechanical, bioactivity and hemolysis properties of pseudo-wollastonite and wollastonite glass-ceramic synthesized from solid wastes. Ceramics International. 2019. DOI: 10.1016/j.ceramint.2019.09.039
Fedyuk R.S., Liseytsev Yu.L., Taskin A.V., Timokhin R.A., Klyuev S.V., Cesar Casagrande. Increasing in impact viscosity of fiber-ash-concrete. Construction Materials and Products. 2020. 3 (6). P. 5 – 16. https://doi.org/10.34031/2618-7183-2020-3-6-5-16