烧结多孔砖外墙裂缝成因解析——以某化工园区三层工业厂房为例  

Analysis on the cause of cracks in external wall of sintered porous brick ——Take a three-storey industrial plant in a chemical industrial park as an example

作　　者：左丽梅 姜小明 程彦 程杰 Zuo Limei;Jiang Xiaoming;Cheng Yan;Cheng Jie(Quzhou Kangping Construction Engineering Testing Co.Ltd.,Quzhou,Zhejiang 324000;Zhejiang Wanxia Construction Co.Ltd.,Quzhou,Zhejiang 324000)

机构地区：[1]衢州康平建设工程检测有限公司,浙江衢州324000 [2]浙江万厦建设有限公司,浙江衢州324000

出　　处：《江西建材》2021年第4期49-50,共2页Jiangxi Building Materials

摘　　要：烧结多孔砖含有大小不同、形状不一的气孔,当外墙长时间处于多雨且低温环境下,水分通过抹灰层细裂缝进入砖内滞留,以致达到饱和状态;砖内滞留的水分结冰,体积膨胀,砖块开裂;开裂的砖块又促进抹灰层裂缝进一步增大,更多的雨水进入砖内,从而使外墙开裂程度越来越严重;砖内石灰爆裂的发生,更加剧了砖块的冻坏开裂进程。Fired perforated brick contains pores of different sizes and shapes,When the exterior wall is in a rainy and low temperature environment for a long time,water enters the brick through the fine cracks in the plastering layer,and then reaches the saturation state;the water retained in the brick freezes,expands,and the brick cracks;the cracked brick further increases the cracks in the plastering layer,and more rain enters the brick,thus causing the exterior wall to crack The degree of wall cracking is more and more serious,and the occurrence of lime burst in brick aggravates the process of brick freezing cracking.

关 键 词：烧结多孔砖 饱和状态 水分结冰 体积膨胀 外墙开裂 石灰爆裂 

分 类 号：TU5[建筑科学—建筑技术科学]