Fine-aggregate concrete with polymer and basalt fiber

The article covers the results of research and experimental studies aimed at determination of the impact of polymer and basalt fibre as well as plasticizing agents on the properties of fine-aggregate concrete. The authors identified the physical and mechanical properties of fine-aggregate fibre-reinforced concrete depending on the amount of basalt and polymer fibres. The article also dwells on the impact of different plasticizing agents on the properties of fine-aggregate fibre-reinforced concrete. It was determined that the optimal concentration of polymer and basalt fibre is 0.9-1.0 kg/m3 when maximum compression strength and tension in bending have been reached. The authors managed to select efficient superplasticizing agents Sika ViscoCrete 5-800 and POLIPLAST SP-4 which provided maximum increase in strength of fine-aggregate concrete. It was determined that the use of polymer and basalt fibres ensures increase in strength and crack resistance of the obtained fire-aggregate concrete compositions. (paper)