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Technical and economic comparison of the effectiveness of the use of fiber-reinforced concrete based on fibers of various origins

Abstract

Technical and economic comparison of the effectiveness of the use of fiber-reinforced concrete based on fibers of various origins

Borovkov A.V, Ovchinnikova S.V.

Incoming article date: 16.11.2020

The article investigates the physical and mechanical properties of fine-grained fiber-reinforced concrete with metal, polypropylene and polyamide fibers, using Portland cement, hyperplasticizer. Comparison of strength characteristics of fiber-reinforced concrete made using metal fiber, polypropylene and polyamide fibers is carried out. A technical and economic comparison of the efficiency of using fibers of various origins has been made. According to the cost calculations, the use of polyamide fibers is cost-effective, since the cost of materials is lower than the cost of fiber-reinforced concrete materials based on polypropylene fibers of this composition.

Keywords: fiber concrete, hyperplasticizer, fiber, microsilica, tensile strength, nature of destruction, mechanical property, polypropylene fiber, polyamide fiber, cement, reinforcement, adhesion, monolithic structure, cost