混凝土湿热传导与湿热扩散特性试验研究(Ⅱ)——试验成果及其分析

Experimental Study on Thermal Conductivity and Diffusivity of Moist Concrete (Ⅱ)Experimental Results and Analysis——Experimental Results and Analysis

利用5组组合试件,测试了不同含湿状态下混凝土的导温系数,并采用原理部分的公式对实测结果进行了修正;用修正后的混凝土热物性参数,计算了试验条件下主测点与加热面上的温度变化过程．试验表明计算值与实测值吻合良好,误差在6%以内．由本实验方法得到的饱和混凝土试件的导温系数为干燥试件导温系数的1．6倍．

Through five groups of combined specimens, thermal conductivities with different moisture con-tents of concrete are measured experimentally. The measured results were modified by formulas of principle.The temperature processes of the main point and the hot face were estimated with modified thermal parame-ters of concrete, and compared with rneasurements, which show that they are in agreement with each otherand the error is less than 6%, and the thermal diffuslvity of the rnoistest specimen is about 1. 6 times that ofthe driest one.