摘要
通过研究废弃混凝土在热与机械力作用下结构和性能的变化,指出热作用下废弃混凝土粗骨料界面和砂浆基体结构发生弱化,废弃混凝土之间的机械碰撞与磨擦作用会产生粗骨料分离。分离制备的再生粗骨料与天然集料具有相似的物理性能,并且配制的混凝土具有良好的工作性能和力学性能。
Changes of the structure and performance of waste concrete under the thermal-mechanical effect is discussed in the paper, The results show that the interfacial zone around coarse aggregate and mortar matrix became poor and the coarse aggregates in waste concrete can be got under mutual colliding and wearing of waste concrete segments.The separated recycling coarse aggregate has the similar physical properties with the natural aggregate.Moreover ,the recycling concrete has better workability and mechanical property compared with the common concrete.
出处
《混凝土》
CAS
CSCD
北大核心
2006年第12期60-62,共3页
Concrete
关键词
废弃混凝土
热-机械力分离
再生粗骨料
waste concrete
thermal-mechanical separation
recycling aggregate
