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一、窗框周围的损害居东京、晴海附近的某混凝土二层砌块建筑,因位于离东京湾500米以内的沿海地区,故在建后的25年中,受潮湿的海风影响,铁制窗框已显着锈蚀,又因原有砂浆填充不实,雨水内渗严重,因此必须进行修补。二、修补方法修补材料可用一般砂浆、环氧树脂或水泥稀浆等材料。这次修补方法的最佳方案是灌注超细无收缩水泥制作的水泥稀浆,其理由是:(一)由于混凝土空心砌块墙,窗框与混凝土砌块的接触空隙很大,用一般砂浆灌注
1. The damage around the window frame is a concrete two-story building near Tokyo and Harumi, which is located in the coastal area within 500 meters from Tokyo Bay. During the 25 years after construction, it was affected by the damp sea breeze. The window frame has been significantly rusted, and due to the fact that the original mortar was not filled properly and rainwater infiltrates seriously, repairs must be carried out. Second, repair methods Repair materials available general mortar, epoxy resin or cement slurry and other materials. The best solution for this repair method is to inject cement slurries made of ultra-fine and non-shrinkage cement. The reasons are as follows: (1) Because of the hollow concrete block walls, the contact gap between the window frame and the concrete block is large, and the general mortar is used. perfusion