No abstract

Concrete is a brittle material with very low tensile unit deformation capacity and tensile strength. Where these properties of concrete are required, by the addition of high-tech fibers produced from different materials within the concrete, weak properties of concrete are being tried to be improved. In this study, it is aimed to investigate the physical and mechanical properties of concretes obtained by using different fibers at %1, 2 and 3 ratios by keeping amount of cement constant in the concrete mixtures. According to experimental results, it was seen that the increasing fiber additive in the concrete mixtures, flexural strength were increased by addition of fibers to concrete, slump and compressive strength were decreased. In addition, unit weights decreased and thermal insulation properties increased positively.

Concrete is a brittle material with very low tensile strength and low tensile deformation capacity. In order to improve these properties of concrete, it is tried to improve the weak properties of concrete as a result of the addition of fibers with high technical properties made of different materials. In this study, the effect of fiber concrete samples produced from polyester, polyamide and jute fiber mixtures used in 0.5, 1, 1.5% ratios on the physical and mechanical properties was investigated by keeping the cement amount constant in the concrete mixtures. Standard cubic samples for concrete compressive strengths and beam samples for flexural-tensile strengths were produced. It was determined that as the fiber ratio increased, the Schmidt hardness and bending strength values increased, the collapse amount, thermal conductivity coefficient and compressive strength values decreased.. It is thought that the increase in fiber ratio will contribute to thermal insulation by decreasing the thermal conductivity value.