Experimental Investigation on Fracture Performance of Short Basalt Fiber Bundle Reinforced Concrete

In this paper, a notched three-point bending test is used to study the fracture performance of short basalt fiber bundle reinforced concrete (SBFBRC). To compare and analyze enhancement effect different diameters content bundles on concrete, some groups are set up, P-CMOD curves each group specimens measured, toughness energy control calculated. The two important parameters law new concrete. research results show that diameter have certain With increase bundles, peak load, crack initiation toughness, instability SBFBRC greatly improved compared with benchmark group. When 0.2 mm, load increases by 69.5% reference reaches its maximum value at mm diameter, which 59.7% higher than benchmark.