摘要
再生骨料表面包裹着一层硬化水泥砂浆、导致再生混凝土的强度变化较复杂。探讨如何利用骨料的吸水率、取代率来推算含浆量以及不同含浆量的再生骨料对混凝土7d、28d强度、再生混凝土的强度与灰水比的线形关系和工作性能的影响。
The recycled aggregate surface is wrapped with a layer of hardened cement mortar,which leads to a complicated strength change of recycled concrete.With the water absorption capacity of the aggregate as an index,this paper discusses the calculation of mortar content with water absorption capacity and replacement rate,and the influence of recycled aggregate with different mortar contents on concrete 7 d,28 d strength,and the linear relationship between recycled concrete strength and cement-water ratio,as well as relevant working performance.
出处
《铁道建筑技术》
2010年第12期76-80,83,共6页
Railway Construction Technology
基金
地震灾区建筑垃圾资源化技术及其示范生产线(2008BAK48B01)
关键词
再生骨料
含浆量
再生混凝土强度
线形关系
工作性能
recycled aggregate
mortar content
recycled concrete strength
linear relationship
working performance
