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施工工程进入装修阶段时,常遇因瓷砖大理石等白色饰面材料受污染发黄(斑点),给工程验收带来了麻烦.现介绍以下处理方法.1 因材料保管不慎引起发黄的处理方法瓷砖,马赛克,大理石从工厂至工地的运输过程中,因包装的纸箱或草绳被雨淋湿,水分浸透建材饰面而生成黄色斑点.根据污染状况及渗透到内部的程度可采用以下处理方法:a、被污染的颜色浅且污染面不大者可用30%浓度的草酸液体泡洗.
When the construction project enters the decoration stage, it often happens that white decorative materials such as tile marble are contaminated by yellow spots (spots), which causes troubles for acceptance of the project. The following treatment methods are introduced. 1 Treatment due to carelessness of materials caused by yellowing Method Tiles, mosaics, and marble During the transportation from the factory to the construction site, the packaged cartons or straw ropes are wetted by rain, and moisture penetrates the building material veneer to generate yellow spots. The following treatments can be used depending on the pollution conditions and the degree of penetration into the interior. Method: a, contaminated light color and less polluted surface can be washed with 30% concentration of oxalic acid liquid.