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.
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)
关键词
绝热材料
导热系数
防护热板法
thermal insulation material
thermal conductivity
guarded hot plate apparatus
