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地下防水的目的是防止地下水侵入建筑物内部及建筑物结构内钢筋腐蚀。地下防水有外防水工法和内防水工法之分。外防水工法是在基体外部设置防水层,它又分为后施工工法和先施工工法。
The purpose of underground waterproofing is to prevent groundwater intrusion into the interior of the building and corrosion of steel in the structure of the building. Underground waterproof outer waterproofing method and waterproofing method points. Outside the waterproofing method is set in the outer waterproof substrate, which is divided into the construction method and the first construction method.