通过室内试验,研究了钢纤维掺量对混凝土28 d抗压强度、劈裂抗拉强度、抗折强度和折压比的影响。试验结果表明,在混凝土中加入钢纤维可以提高混凝土强度,改善混凝土弯曲韧性;但钢纤维掺量并不是越多越好,当钢纤维掺量为1.5%时混凝土的强度最大,弯曲韧性最优。 Through laboratory tests, the effects of steel fiber content on the compressive strength, splitting tensile strength, flexural strength and folding ratio of concrete at 28 d were studied. The test results show that the addition of steel fiber to concrete can improve the strength of concrete and improve the flexural toughness of concrete. However, the amount of steel fiber is not as good as possible. When the steel fiber content is 1.5%, the strength of concrete is the highest and the flexural toughness is the best .