强化再生骨料性能试验研究  

Experimental Research on Performance of Reinforced Recycle Aggregate

作　　者：王海超[1,2] 陈晨[1] 赵倩倩[2] 胡翠平[2] 

机构地区：[1]山东科技大学土木工程与建筑学院,青岛266590 [2]青岛工学院建筑工程学院,胶州266300

出　　处：《混凝土与水泥制品》2016年第4期25-27,32,共4页China Concrete and Cement Products

基　　金：青岛市建设事业科技发展项目(JK2015-9);青岛工学院校长基金项目(2014KY009)

摘　　要：再生骨料具有大量细部裂缝,骨料表面的吸水率较高,因而收缩变形较大,导致其力学性能降低。本文就改善再生骨料的表面强度进行试验研究。通过使用渗透结晶材料对废弃混凝土骨料表面进行处理,将处理后的再生骨料、天然骨料以及未做处理的再生骨料,按照同种配合比制作成标准试件,然后进行力学性能测试,将测试结果进行比较。结果表明,使用渗透结晶材料处理过的骨料,其性能与未经处理的再生骨料相比有较大变化,其力学性能得到很大改善;经过处理后的再生骨料与天然骨料之间的性能差异变得非常微小。The recycled aggregate is often due to a large number of detailed cracks, the water absorption rate of the aggregate surface is high, so that the shrinkage deformation is larger, which leads to the decrease of the mechanical properties. The surface strength of recycled aggregate is studied in this paper. By using permeable crystalline materials, the treated recycled aggregate, natural aggregate and recycled aggregate without treatment are used to prepare the specimens according to the same mix proportion. Then the mechanical performance test is performed and the test results are compared. The results show that the properties of the treated aggregate have great changes compared with the recycled aggregate, the mechanical properties of treated aggregate are greatly improved by the use of permeable crystalline materials, and their properties are slightly different between treated recycled aggregate and natural aggregate.

关 键 词：再生混凝土 渗透结晶材料 再生骨料 性能改善 

分 类 号：TU528.01[建筑科学—建筑技术科学]