司政凯1,2,张道令2,陈晓飞2,赵艳艳2,罗忠涛1,杨久俊1
自保温体系用薄层砂浆配方的实验研究
司政凯1,2,张道令2,陈晓飞2,赵艳艳2,罗忠涛1,杨久俊1
摘 要:薄层砂浆砌筑墙体灰缝厚度低至3~5mm,能有效降低灰缝带来的能量损失,与蒸压加气混凝土自保温砌块配套使用能真正实现墙体自保温功能,而且还可以节省原料使用。文章借助正交实验方法研究了不同因素对砂浆收缩率、压折比及黏结强度的影响,为自保温墙体用薄层砂浆配方研究提供理论依据。结果表明:胶砂比对砂浆各性能影响程度均较高,且随龄期增长,影响更明显,而外加剂的加入对砂浆压折比和黏结强度均有积极意义。
Abstract:The mortar joint thickness of wall which built with film mortar as thin as 3 to 5 mm, which can reduce the energy deficiency caused by gap, and realize self-insulating when it is used with self-insulating autoclaved aerocrete blocks, save materials as well. The influence of different element for the shrinkage, ratio of compressive and flexural strength and sticking strength were studied, which can provide an effective theoretical foundation for the study of film mortar used in self-insulating wall. The results showed that the influence of the ratio of cementitious and sand on the all properties are higher, and more evidence with the time increase; while the admixtures have a positive significance for the ratio of compressive and flexural strength and sticking strength.
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