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研究3种不同蒸压加气混凝土产品性能之间的差异,从而对加气混凝土的选用起到指导作用。通过对不同种类蒸压加气混凝土进行性能测试、X射线衍射分析及SEM微观观察,研究其力学性能、收缩性能、抗冻性能和水化产物,并分析其性能差异。结果表明:3种加气混凝土的力学性能、收缩性能不存在显著差异;砂加气混凝土的抗冻性能优于其它两种加气混凝土;3种加气混凝土的主要水化产物均为托勃莫来石,但是晶相形态存在差异。
The differences between the performance of three different autoclaved aerated concrete products were studied to guide the selection of aerated concrete. The mechanical properties, shrinkage properties, frost resistance and hydration products of different types of autoclaved aerated concrete were tested by X-ray diffraction and SEM, and their performance differences were analyzed. The results show that the mechanical properties and shrinkage properties of the three kinds of aerated concrete are not significantly different. The frost resistance of aerated aerated concrete is better than that of the other two kinds of aerated concrete. The main hydration products of three kinds of aerated concrete are Top Mullite, but there are differences in crystal phase morphology.