蒸压粉煤灰加气混凝土墙体收缩性能试验研究  

Experimental Study on Dry Shrinkage Performance of Autoclaved Ash Aerated Concrete Masonry Wall

作　　者：夏永康[1] 陈利群[2] 陈伯望[3] 

机构地区：[1]湖南科技大学土木工程学院,湖南湘潭411201 [2]湖南城市学院土木工程学院,湖南益阳413000 [3]中南林业科技大学土木工程学院,长沙410004

出　　处：《湖南城市学院学报（自然科学版）》2014年第2期5-9,共5页Journal of Hunan City University:Natural Science

基　　金：湖南省科技计划科研基金资助项目(2010FJ3115);湖南省教育厅一般科研基金资助项目(11C0243);湖南城市学院产学研合作示范基地项目

摘　　要：新型墙体材料蒸压粉煤灰加气混凝土的干燥收缩开裂问题限制了其推广应用,为了解其收缩原理,本文通过5片蒸压粉煤灰加气混凝土砌体墙试验,研究了加气混凝土砌体墙在自然养护和标准养护环境下的收缩性能,获得了龄期、砂浆强度、砂浆种类、相对湿度、温度、离地高度等因素对蒸压粉煤灰加气混凝土砌体墙收缩变形的影响规律.基于试验研究结果提出了防止墙体开裂的措施,对工程实践具有指导意义.The shrinkage cracking of the autoclaved fly ash aerated concrete limit its popularization and application. To get the shrinkage principle, the paper studied the shrinkage performance of autoclaved aerated concrete masonry wall under the natural environment and standard environment through the test of the 5 pieces of autoclaved fly ash aerated concrete masonry wall, it reached the law that the curing age, the strength of mortar, mortar type, relative humidity, the ambient temperature, the height which affect the shrinkage. The measures guiding to the engineering practice to prevent the wall cracking were put forward based on the test results.

关 键 词：蒸压粉煤灰 加气混凝土砌块 收缩 试验研究 

分 类 号：TU522.32[建筑科学—建筑技术科学]