混杂纤维再生混凝土的力学及抗裂性能试验研究

摘要

为了提高再生混凝土的力学及抗裂性能，在再生混凝土中掺入聚丙烯纤维及钢纤维进行试验，对再生混凝土的强度及脆性、拉压比和弹强比等作了研究，结果表明，掺入混杂纤维可提高再生混凝土的抗压强度、劈拉强度，降低再生混凝土的脆性，提高抗裂性能。%To improve the mechanical properties and crack resistance of recycled concrete,this paper have a research on recycled concrete with polypropylene fiber and steel fibre and analyse the strength,brittleness,the proportion of tensile strength and compressive strength. Results show that adding hybrid fiber can improve compressive strength and splitting tensile strength and the anti-cracking performance of recycled concrete and can reduce the brittleness of recycled concrete.