The purpose of this experimental research is to evaluate the workability and strength properties of hybrid fiber reinforced concrete containing amorphous steel fiber and organic fiber. For this purpose, the hybrid fiber reinforced concrete containing amorphous steel fiber(ASF) with polyamide(PA) and polyvinyl alcohol(PVA) fiber, respectively were made according to their total volume fraction of 0.5% for water-binder ratio of 33%, and then the characteristics such as the workability, compressive strength, and flexural strength of those were investigated. It was observed from the test results that the workability and compressive strength at 7 and 28 days were decreased and the flexural strength at 7 and 28 days was increased with increasing ASF and decreasing organic fiber.

The purpose of this experimental research is to evaluate the mechanical properties of high performance concrete using amorphous steel fiber and organic fiber. For this purpose, the hybrid fiber reinforced concrete containing amorphous steel fiber(ASF) and polyamide(PA) fiber were made according to their total volume fraction of 0.5% for water-binder ratio of 33%, and then the characteristics such as the workability, compressive strength, and direct tension strength of those were evaluated. It was observed from the test results that the workability and compressive strength was decreased with increasing ASF and decreasing PA fiber. but the direct tension strength was on the whole increased with increasing ASF and decreasing PA fiber.

Thin plate amorphous steel fiber has more tensile strength and corrosion resistance than general steel fiber, and it has different fiber direction by casting direction. In this study, evaluating impact resistance and sectional crack characteristic of amorphous steel fiber-reinforced cement composites by casting direction.

Considering the probabilistic distribution of fibers in amorphous steel fiber reinforced concrete(ASFRC), the number of amorphous steel fibers crossing the critical section were theoretically derived as a function of fiber geometry, specimen dimensions and fiber volume fraction. The developed theoretical expressions reasonably predicted the number of amorphous steel fibers at different sections.