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蒸压加气混凝土砌筑用单组份聚氨酯泡沫胶粘剂的性能研究
作者：吕夏阳
（福建省建筑科学研究院有限责任公司，福建省绿色建筑技术重点试验室，福建 福州 350028）
摘要：将单组份聚氨酯泡沫胶粘剂应用于蒸压加气混凝土的砌筑，通过测试发泡倍数、表干时间、剪切粘结强度和与蒸压加气混凝土拉伸粘结强度研究其性能。结果表明：发泡倍率对粘结强度有一定影响；表干时间影响砌筑施工的可操作性；耐水试验后胶粘剂强度变化不显著；耐热试验后胶粘剂强度显著降低。将单组份聚氨酯泡沫胶粘剂应用于蒸压加气混凝土砌筑具有较大的技术优势。
关键词：聚氨酯泡沫；蒸压加气混凝土；砌筑
中图分类号：TU58+1.2 文献标识码：A 文章编号：1001-702X（2020）07-0092-03
Study on properties of one component polyurethane foam adhesive for masonry of autoclaved aerated concrete
LV Xiayang
（Fujian Academy of Building Research Co. Ltd.，Fujian Provincial Key Laboratory of Green Building Technology，Fuzhou 350028，China）
Abstract：The application of one component polyurethane foam adhesive to autoclaved aerated concrete was discussed. By testing the foaming ratio，dry time，shear bond strength and tensile bond strength of autoclaved aerated concrete to discuss its performance. The results showed that foaming ratio had a certain effect on bond strength，surface drying time affected the operability of masonry；the strength of adhesives did not change significantly after water resistance test；and the strength of adhesives decreased significantly after heat resistance test. Generally speaking，the application of one component polyurethane foam adhesive to autoclaved aerated concrete had many advantages.
Key words：polyurethane foam，autoclaved aerated concrete，masonry