泡沫混凝土的导热系数和强度研究

Study on Thermal Conductivity and Mechanical Strength of Foamed Concrete

本文通过对泡沫混凝土的导热系数以及气孔孔径实验数据的分析得到其导热系数随气孔含量变化以及孔径与体积密度的基本规律,同时验证了作者所提出的两相复合材料导热系数公式,通过与泡沫混凝土的导热系数实验数据的拟合得到了该公式中的针对泡沫混凝土的特征参数t。并通过有限元数值模拟计算结果得出,泡沫混凝土的气孔孔径对其绝热性能和力学性能的提升没有有效的帮助。

In this study,effective thermal conductivity equation proposed by authors was verified by experimental results. The characteristic parameter in the equation was obtained for foamed concrete.And,numerical simulation results show that air-void size does not improve both thermal and mechanical properties of foamed concrete.