Naslov
Fine-grained Fiber Concrete on Mechanoactivated Portlandcement

Autori
Vorokhaiev, A. ; Barabash, I. ; Ksonshkevych, L. ; Kos, Z. ; Grynyova, I.

Izvornik
Croatian Regional Development Journal (2718-4978) 2 (2021), 1; 47-56

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
intensive separate technology ; basalt fiber ; abrasion ; impact resistance ; activated binder

Sažetak
This article is devoted to the study of the mechanical properties of fine-grained concrete used for flooring in industrial and civil buildings. Characterized by the wellknown advantages (unlimited raw material base, manufacturability, high homogeneity), fine-grained concrete requires an increased consumption of cement to achieve the necessary mechanical characteristics - compressive strength, abrasion, impact resistance. An alternative to the known technological method is proposed an intensive separate technology (IST) for preparing fine- grained concrete mixtures using a high-speed mixer-activator in the presence of hydrophobized basalt fiber and a polycarboxylate superplasticizer Relaxol-Super PC. The use of IST leads to an increase in the strength of fine- grained concrete in compression by 1.9 times, impact resistance by a factor of 2, and a decrease in abrasion by 40 ... 50% in comparison with the control. The relevance of using the technology of monolithic floors for industrial and civil construction is due to a wide range of varieties of Portland cement, the grain composition of aggregates, as well as the simplicity of the technology for preparing a fine-grained concrete mixture.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Interdisciplinarne tehničke znanosti

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