不同再生骨料替代率混凝土抗压强度试验研究  

Experimental Study on Compressive Strength of Recycled Aggregate Concrete with Different Replacement Ratios

作　　者：蔡海勇[1] 李红霞[1] 

机构地区：[1]黄河科技学院,郑州450063

出　　处：《河南科学》2013年第4期460-463,共4页Henan Science

基　　金：黄河科技学院自然科学研究项目(KYZR201109)

摘　　要：分别对7 d、28 d、60 d龄期的不同再生粗骨料替代率混凝土进行了抗压强度试验,分析了再生骨料混凝土破坏形态及不同再生粗骨料替代率对再生混凝土抗压强度的影响,并对其原因进行了分析.试验结果表明28 d龄期的再生骨料混凝土强度能够达到标准要求,用再生骨料配置混凝土是可行的.Compressive strengths of recycled aggregate concrete with different recycled aggregates replacementratios at 7 d, 25 d, 60 d ages are investigated respectively. Failure process and failure mode of RAC are analyzed. The influences on compressive strength with same mix ratio and different RA replacement ratios are also analyzed. And the reason is investigated in this paper. The experimental results indicate that compressive strength of recycled concrete at 28 d age can reach the standard generally, it is feasible to mix concrete with recycled aggregates.

关 键 词：再生骨料 再生混凝土 再生骨料替代率 抗压强度试验 

分 类 号：TU528[建筑科学—建筑技术科学]