灰缝厚度对墙体性能的影响  

Influence of the thickness of joints on properties of wall

作　　者：石明明[1,2] 蹇守卫[1] 马保国[1] 苏雷[1] 

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,湖北武汉430070 [2]江西科技学院土木学院,江西南昌330022

出　　处：《新型建筑材料》2013年第8期50-52,共3页New Building Materials

基　　金：国家科技支撑计划项目(2012BAJ20B04);中央高校基本科研业务费专项资金

摘　　要：对不同砌筑灰缝厚度的墙体进行压力破坏试验,研究灰缝对墙体力学性能的影响,结果表明,随着灰缝厚度的增加,墙体的抗压强度减小,并通过线性回归分析得到规律方程;通过传热分析,对包含1个垂直灰缝和1个水平灰缝的砌筑单元的传热速率进行计算,推导出砌筑单元的传热速率与灰缝厚度之间呈正比函数关系式,对墙体性能的提高具有理论指导意义。The influence of joints on mechanical properties of the walls is studied by the destruction tests under pressure. As the thickness of the joints increased,the compressive strength of the wails decreased,which had been calculated by linear regres- sion analysis. We calculated＇ the rate of heat transfer of a single masonry unit,which included a vertical mortar joint and a hori- zontal mortar joint. Subsequently infers the proportional function between the rate of heat transfer of a single masonry unit and the thickness of joints. These works has guiding significance in improving the properties of wall.

关 键 词：灰缝 墙体 力学性能 传热性能 

分 类 号：TU522.32[建筑科学—建筑技术科学]