3-8 APPLICATION OF BASALT FIBER IN CONCRETE MIXTURES FOR THE PRODUCTION OF PRECAST CONCRETE AND REINFORCED CONCRETE STRUCTURES

Abstrak

The article considers the use of basalt fiber in concrete mixtures intended for the production of precast concrete and reinforced concrete structures. Particular attention is paid to the technological problem of uniform distribution of basalt fibers in the cement matrix. The influence of basalt fiber introduction methods on the formation of the structure and strength characteristics of fiber-reinforced concrete is analyzed. The combined use of basalt fiber and a polycarboxylate-based superplasticizer is considered as an effective method for improving the physical and mechanical properties of concrete. The results show that dispersed basalt-fiber reinforcement contributes to an increase in compressive and tensile strength and improves the resistance of concrete to external influences. The technological principles of preparing basalt-fiber-reinforced concrete mixtures are discussed and their prospects for precast reinforced concrete production are substantiated.