聚丙烯纤维轻骨料混凝土的力学性能研究

Study on mechanical properties of polypropylene fiber lightweight aggregate concrete

采用天然浮石作为粗骨料,同时掺入聚丙烯纤维配制混凝土,对聚丙烯纤维轻骨料混凝土的表观密度、抗压强度、弹性模量、抗折强度以及弯曲韧性进行研究,结果表明,掺入聚丙烯纤维,抗压强度有所下降,但可以在不增加轻骨料混凝土的表观密度的基础上,有效地改善轻骨料混凝土的韧性。

Pumice and polypropylene fibers were used to mix lightweight aggregate concrete （LWAC）.Apparent density, compressive strength, elastic modulus, flexural strength and flexural toughness of LWAC were investigated.The results show the introduction ofpolypropylene fibers can reduce compressive strength of LWAC.But toughness can be improved effectively and its low apparent density will be maintained.