龄期对再生混凝土空心砌块基本力学性能的影响  

Effecting of Age on Basic Mechanical Properties of Recycled Concrete Hollow Blocks

作　　者：赵雪云 

机构地区：[1]山西建筑职业技术学院市政工程系,太原030006

出　　处：《混凝土与水泥制品》2015年第5期68-70,共3页China Concrete and Cement Products

基　　金：外墙外保温系统技术性能研究(太原市城建科研项目;并建管字[2008]392号;并财城[2008]332号)

摘　　要：对建筑垃圾用于建筑结构空心砌块砌体进行了研究,砌块采用再生粗骨料,再生砂浆采用再生细骨料。试验结果表明,再生混凝土空心砌块砌体随着龄期的增加,力学性能（抗压强度和抗剪强度）均有提高,抗压强度在养护后7~14d的时间内强度增长最快,而抗剪强度则是养护14~28d的时间内强度增长最快,因此,在实际工程中应该注重相应时间段的养护。The construction waste used in construction of hollow block masonry is studied using recycled coarse ag- gregate for block and using recycled fine aggregate for recycled mortar. The results show that the mechanical properties （compressive strength and shear strength） of recycled concrete hollow block masonry increase with the increase of ages, the growth rate of the compressive strength is the fastest after curing 7--14d, and the growth rate of the shear strength is the fastest after curing 14-28d, so it should pay attention on the corresponding time period of curing in the practical engineering.

关 键 词：建筑垃圾 再生混凝土空心砌块砌体 抗压强度 抗剪强度 养护时间 

分 类 号：TU528.062[建筑科学—建筑技术科学]