摘要
研究了再生骨料替代率、聚丙烯纤维和钢纤维掺量对再生混凝土性能的影响。结果表明:替代率为30%的再生细骨料对混凝土的密度、和易性以及抗压强度无显著的负面影响;一定掺量的纤维对混凝土的工作性无显著影响,但能有效提高再生混凝土的劈裂抗拉强度和抗折强度,改善混凝土的抗裂性和脆性。
The effects of recycled aggregate replacement rate,polypropylene fiber and steel fiber content on the properties of recycled concrete were studied.The results show that the recycled fine aggregate with a replacement rate of 30%has no significant negative effect on the density,workability and compressive strength of concrete.A certain amount of fiber has no significant effect on the workability of concrete,but it can effectively improve the splitting tensile strength and flexural strength of recycled concrete,and improve the cracking resistance and brittleness of concrete.
作者
王立波
赵军
WANG Li-bo;ZHAO Jun(School of Civil and Architectural Engineering,Anyang Institute of Technology,Anyang 455000,China)
出处
《混凝土与水泥制品》
2021年第6期99-102,共4页
China Concrete and Cement Products
基金
河南省高等学校重点科研项目(20B560001)
安阳市科技攻关项目(2020402-3)。
关键词
再生混凝土
再生骨料
坍落度
聚丙烯纤维
钢纤维
Recycled concrete
Recycled aggregate
Slump
Polypropylene fiber
Steel fiber
