混凝土小型空心砌块墙体干缩性能的试验研究  

EXPERIMENTAL STUDY ON DRYING SHRINKAGE PROPERTY OF SMALL CONCRETE HOLLOW BLOCK WALL

作　　者：周瑾[1] 陈鸣[1] 金伟良[1] 叶甲淳[1] 

机构地区：[1]浙江大学土木工程系,杭州310027

出　　处：《工业建筑》2004年第8期41-43,共3页Industrial Construction

摘　　要：混凝土小型空心砌块的湿胀干缩性能是引起砌块建筑裂缝的主要原因之一 ,它的危害已引起了人们的关注。设计了一个保湿空间 ,确保环境相对湿度的大致恒定 ,通过对尺寸相同、构造措施不同墙体的试验 ,分析了环境相对湿度 (RH)、时间、面层材料等影响因素对砌块墙体变形的影响 ,对比面层材料的抗变形效果 ,并测得 6 5 %、4 5 %两种湿度条件下墙体的干缩率 ,以供设计时参考使用。The property of expansion and drying shrinkage of small concrete hollow blocks is one of the main causes that results in cracks of a block building; and people have attached importance to their harm. Tests were conducted with walls of the same dimension in a room designed by ourselves to ensure invariable relative humidity.Through the tests, the influence of relative humidity, time, duration surfacing materials on deformation of block walls was investigated. Also, the shrinkage ratio of block walls was achieved under 65% relative humidity and 45% relative humidity, which may be a reference for the design of such walls.

关 键 词：砌块墙体 混凝土小型空心砌块 构造措施 砌块建筑 干缩性能 抗变形 面层材料 试验研究 裂缝 使用 

分 类 号：TU364[建筑科学—结构工程]