钢网在硬化抹灰层中的抗裂机理研究  

Study on crack resistance mechanism of steel web in hardened plastering

作　　者：程从密[1] 刘启华[1] 张传镁[1] 

机构地区：[1]广州大学土木工程学院

出　　处：《新型建筑材料》2008年第1期33-36,共4页New Building Materials

基　　金：广州市墙材革新与建筑节能办公室科技基金(2003-2)

摘　　要：墙体开裂的原因复杂,裂缝控制方法也很多。节点挂网已经非常普遍,成为墙体系统中防裂的常规做法。主要探讨钢网的抗裂效果。试验结果表明,硬化后抹灰层中的钢网不是通过增强而是通过增韧来防裂的;抹灰层中的含钢量达到一定值时,钢网才可表现出增韧作用;钢网的存在并没有提高试样首次出现裂纹的荷载。The reason of wall crack is complicated and there are many ways to control it. Node web is common and has been a normal procedure for crack resistance in wall system.The crack resistance effect of steel webs is mainly discussed. The test results indicate that steel webs in hardened plastering prevent cracks not through improving strength of wall, but through improving ductiliiy. Steel web can improve the ductility of wall only when the steel content in the plastering reaches to a certain value. Study also shows that the existence of steel webs doesn＇t increase the cracking load of test sample on occurrence of crack at the first time.

关 键 词：钢网 抹灰层 抗裂 

分 类 号：TQ177.6[化学工程—硅酸盐工业]