装配式建筑外墙拼缝用密封胶的性能对比研究

Comparative Study on Performance of Sealant for Joints of Prefabricated Building Outer Walls

装配式建筑是在施工现场对预制件进行拼装和部分浇筑,拼缝部位的密封防水是其防水的关键。装配式建筑外墙拼缝用密封胶的性能就显得极为重要,然而,目前国内尚无针对此类材料具体性能要求的相关标准。本文选取了几种常见的装配式建筑外墙拼缝用密封胶进行性能对比研究,并根据试验结果给出了选胶建议,供同行参考。

For prefabricated building, preformed parts are assembled and some casting works are to be done at construction site. The waterproofing for joints is critical for whole waterproofing system, so the performance of sealant for prefabricated building outer wall joints is very important. However, there is no relevant standard for the performance requirements of this kind of material. In this article, several common sealant for prefabricated building outer wall joints are selected for comparative study, and the article gives advises for sealant selection according to test results, for other＇s reference.