寒冷地区再生混凝土抗压强度试验研究  

Experimental study on the compressive strength of recycled aggregate concrete in cold areas

作　　者：李广军[1] 郑秀梅[1] 王文仲[1] 张玫[1] 李淑芹[1] 

机构地区：[1]佳木斯大学建筑工程学院,黑龙江佳木斯154002

出　　处：《混凝土》2012年第7期37-38,42,共3页Concrete

基　　金：佳木斯大学科研项目(L2010-143)

摘　　要：系统地研究了再生粗骨料混凝土的抗压强度与水灰比、粗骨料取代率以及龄期之间的关系。通过与天然粗骨料混凝土进行对比试验分析得出:再生混凝土的抗压强度随龄期的发展规律接近于普通混凝土;再生混凝土的抗压强度与再生粗骨料取代率的关系密切;再生混凝土的抗压强度与水灰比变化的规律不尽一致。The relationships among recycled aggregate concrete＇s compressive strength,the water/cement ratio ,replacement ratio of recycle daggregate and age were studied.The results indicated that the development for the compressive strength of recycled aggre-gate concrete is the same as that of normal concrete.The recycled coarse aggregate replacement ratio has a remarkable influence on the compressive strength of recycled aggregate concrete.The relationships between the compressive strength and the water/cement ratio are also different in different situations.Finally,based on thetest results, some useful conclusions are obtained, which can be provided as a reference for the design of recycled concrete mixture ratio.

关 键 词：再生混凝土 抗压强度 骨料取代率 

分 类 号：TU528.01[建筑科学—建筑技术科学]