含水率对墙材导热系数的影响研究  

Research on influence of moisture content on thermal conductivity of wall materials

作　　者：孙美钗 SUN Mei-chai

机构地区：[1]福建省建筑科学研究院有限责任公司,福建省绿色建筑技术重点实验室,福建福州350108

出　　处：《砖瓦》2021年第6期13-14,共2页Brick-tile

摘　　要：以保温砂浆、泡沫混凝土以及蒸压加气混凝土砌块为例,研究了三类墙材在含湿非饱状态下导热系数的变化趋势,总体上墙材的导热系数均随着含水率的提升而增大,但不同墙材又展现出不同的变化趋势。此外,拟合得到了三类墙材导热系数随含水率变化的函数关系式,为保温墙材的应用提供一些数据支持。In order to study the changing trend of thermal conductivity of different wall materials in the wet and unsaturated state,this paper uses thermal insulation mortar,foamed concrete and autoclaved aerated concrete to conduct experiments.The results shows that the thermal conductivity of wall materials have increased with the increase of moisture content,but different wall materials shows different trends.In addition,this paper fits the functional relationship of the thermal conductivity of three types of wall materials with the change of moisture content,which provides some data support for the application of thermal insulation wall materials.

关 键 词：保温墙材 含水率 导热系数 

分 类 号：TU522.01[建筑科学—建筑技术科学]