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.
出处
《混凝土》
CAS
CSCD
北大核心
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)
关键词
再生混凝土
抗压强度
骨料取代率
recycled coarse aggregate
compressive strength
aggregate substitutive ratio
