密封胶与混凝土粘接面气孔形成原因与影响因素研究  

Study on Forming Reasons of Air Hole on Bonding Surface of Sealant and Concrete and the Influencing Factors

作　　者：李桂妃 陈晓东 梁振雄 任如飞 宋程龙 林礼超 Li Guifei;Chen Xiaodong;Liang Zhenxiong;Ren Rufei;Song Chenglong;Lin Lichao(Guangdong Pustar Sealant Co.,Ltd.,Dongguan,Guangdong 523646,China)

机构地区：[1]广东普赛达密封粘胶有限公司,广东东莞523646

出　　处：《中国建筑防水》2020年第S02期13-16,共4页China Building Waterproofing

摘　　要：在低碳经济、绿色建筑等新趋势的引导下,装配式建筑成为未来建筑发展的重要方向,然而密封胶在混凝土拼接缝处使用时,在粘接面会产生气孔而影响防水密封性能。通过探究混凝土基材表面不同孔洞数目、不同底涂层数、不同养护温度及不同密封胶种类对粘接面气孔产生的影响,得出结论:当使用PU密封胶和MS密封胶密封时,在水环境养护固化后粘接面都会产生气孔,且混凝土基材表面孔洞越多,形成气孔的数目也越多。Under the guidance of low carbon economy,green building and other new trends,fabricated building becomes a significant direction for future architectural development.Nevertheless,when sealant is used at the concrete joints,air holes are formed on the bonding surface,and thus the waterproofing performance will be affected.Through studying the influence of different hole number on the concrete substrate surface,different primer layers,different curing temperature and different kinds of sealant on the generation of air holes,a conclusion is reached:when PU sealant and MS sealant is used and cured under water environment,the bonding surface will have air holes;the more the holes on the concrete substrate,the more air holes formed on the bonding surface.

关 键 词：密封胶 粘接面 气孔 吸附 

分 类 号：TU502[建筑科学—建筑技术科学] TU578