轻钢泡沫混凝土墙体裂缝控制试验研究  

EXPERIMENTAL STUDY ON THE CRACK CONTROL OF LIGHT GAUGE STEEL AND FOAMED CONCRETE WALL

作　　者：王建军[1] 贾淑明[2] 

机构地区：[1]中国建筑科学研究院,北京100013 [2]兰州工业学院建筑工程系,兰州730050

出　　处：《建筑技术》2015年第1期31-35,共5页Architecture Technology

基　　金：国家科技支撑计划课题(2012BAJ10B04);中国建筑科学研究院青年基金项目

摘　　要：轻钢泡沫混凝土复合墙体具有轻质、保温、隔声和防火等优良性能,但墙体易收缩开裂。为提高轻钢泡沫混凝土墙体的抗裂性能,对泡沫混凝土材料增加了构造措施和施工措施的轻钢泡沫混凝土墙体构件进行了试验研究。研究表明,在满足施工性能的基础上减少水胶比、添加纤维和轻骨料对减少泡沫混凝土收缩效果明显;采取在轻钢骨架两侧设置铁丝网或收口网、洒水覆膜养护和延长养护时间等措施,可有效控制墙体裂缝。Although light gauge steel and foamed concrete composite wall has the advantages of light weight, heat insulation, sound insulation and fire resistance, wall shrinkage and cracking are often found. In order to improve its crack resistance, tests of the foamed concrete shrinkage, wall unit with added structure detail measures and construction measures of wall were conducted. The results indicated that, on the premise that construction is not affected, the reduction of water cement ratio and the increase of fiber and lightweight aggregate are effective measures to reduce foamed concrete shrinkage; by fixing wire meshes on both sides of light gauge steel wall, using coated curing and prolonging the curing time the wall cracks can be effectively controlled.

关 键 词：轻钢泡沫混凝土 墙体裂缝 收缩 

分 类 号：TU528.2[建筑科学—建筑技术科学]