王 兵1,朱平华2,许 飞1,吴书安1
王兵,朱平华,许飞,等.钢粒对聚丙烯纤维再生混凝土性能的影响[J].混凝土与水泥制品,2019(4):97-100.
WANG B,ZHU P H,XU F,et al.The Influence of Steel Particles on Properties of Polypropylene Fiber Recycled Concrete[J].China Concrete and Cement Products,2019(4):97-100.
钢粒对聚丙烯纤维再生混凝土性能的影响
王 兵1,朱平华2,许 飞1,吴书安1
王兵,朱平华,许飞,等.钢粒对聚丙烯纤维再生混凝土性能的影响[J].混凝土与水泥制品,2019(4):97-100.
WANG B,ZHU P H,XU F,et al.The Influence of Steel Particles on Properties of Polypropylene Fiber Recycled Concrete[J].China Concrete and Cement Products,2019(4):97-100.
摘 要:将不同钢粒掺量(0、5%、10%、20%)和1.2 kg/m3聚丙烯纤维掺入再生骨料取代率为100%的再生混凝土中,研究其工作性和力学性能。结果表明,钢粒可以有效改善聚丙烯纤维再生混凝土的流动性,且对其保水性能影响较小;不同钢粒掺量会引起聚丙烯纤维再生混凝土抗压强度波动,随着钢粒掺量的增加其劈拉强度有一定降低,较优的钢粒掺量为5%。
Abstract: To study the working performance and mechanical properties of recycled concrete with 100% replacement rate of recycled aggregate, different steel content (0, 5%, 10%, 20%) and 1.2 kg/m3 polypropylene fiber were mixed into recycled concrete. The results show that the fluidity of polypropylene fiber recycled concrete can be effectively improved by adding steel particles, and there is a little influence on water retention property of concrete. The different content of steel particles causes the fluctuation of compressive strength of polypropylene fiber recycled concrete, and the splitting tensile strength of concrete is reduced to a certain extent with the increase of steel particles and the better steel particles content of polypropylene recycled concrete is 5%.
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