含浆量对再生混凝性能及强度影响的研究  

On Mortar Content's Influence on Performance and Strength of Recycled Concrete

作　　者：李雯霞[1,2] 

机构地区：[1]酒泉职业技术学院,甘肃酒泉735000 [2]同济大学先进土木工程材料教育部重点实验室,上海200092

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)

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.

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 

分 类 号：TU528[建筑科学—建筑技术科学]