Performance of Fiber-Reinforced Concrete Made With Basalt-Bundled Fibers

Abstract Fiber-reinforced concrete (FRC) has become a viable new material used in various flatwork construction projects, such as building pavements, large industrial floors, and runways. In this research, basalt chopped fibers in bundled form were used to make an FRC material called basalt fiber-reinforced concrete (BFRC) to study the possible improvement in the 28-day compressive strength and modulus of rupture, although the latter one is the more important factor in flatwork construction. The basalt fiber specimens were cast using basalt-bundled fibers of three different lengths and three different amounts. The results indicated that 36-mm-long chopped basalt-bundled fibers, and the fiber amount of 8 kg/m3 are the optimum fiber length and fiber quantity for achieving the best performance of both the compressive strength and modulus of rupture. This paper discusses the test matrix and test results obtained from various BFRC and plain concrete specimens.