建筑绝热材料导热系数测试方法探讨  

Discussion on test method of thermal conductivity of building thermal insulation materials

作　　者：李建伟 徐元盛 白召军 马挺 马炎 殷会玲 LI Jian-wei;XU Yuan-sheng;BAI Zhao-jun

机构地区：[1]河南建筑材料研究设计院有限责任公司,河南郑州450002 [2]国家建筑材料工业保温与密封材料产品质量监督检验测试中心,河南郑州450002

出　　处：《节能》2019年第10期31-33,共3页Energy Conservation

基　　金：国家标准《建筑保温砂浆》(GB/T 20473)计划修订项目(项目编号：20190745-T-609)

摘　　要：以GB/T 10294-2008为例,对使用防护热板法测试建筑绝热材料导热系数过程中易忽略及不明确的地方进行阐述,主要包括:试件的加工及干燥的处理方法;试件厚度的测量方式;环境温、湿度的控制范围;修正系数的标定及参数设置;测量不确定度等方面,并给出了指导性意见和建议。Taking GB/T 10294-2008 as an example,the problems of easy to ignore and unclear in the process of testing the thermal conductivity of building insulation materials by using guarded hot plate apparatus were expounded,including :processing and drying method of test pieces;measuring method for thickness of test pieces;control range of ambient temperature and humidity;correction factor calibration and parameter setting;measurement uncertainty,etc. Guidance comments and suggestions were given for these problems.

关 键 词：绝热材料 导热系数 防护热板法 

分 类 号：TU55[建筑科学—建筑技术科学]