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本文介绍了水泥基材料的自收缩变形的模型,针对不同模型进行了对比分析。阐述了水泥基材料热膨胀系数变化的影响因素以及热膨胀系数随湿度变化的机理,提出相对湿度变化值与温度变化值之比(△RH/△T)是衡量热膨胀系数变化趋势的重要参数。
This paper introduces the self-shrinking deformation model of cement-based materials, and compares and analyzes the different models. The influencing factors of CTE and the mechanism of CTE with humidity are presented. The ratio of relative humidity to temperature (△ RH / △ T) is an important parameter to measure the change trend of CTE.