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防水卷材与其他防水材料一样,要求有一定的不透水性和憎水性,还要求有一定的厚度和抗老化性,以保证其使用的耐久性。同时还要求有一定的弯折韧性和延性以及抗拉强度,这是对材料的要求。工程防水主要是靠排水和堵水两种方法来实现的。排水是通过坡向引导流水,堵水则靠防水材料的性能和施工方法来实现的。工程实践证明,机械固定和热熔焊接结合的作法是一种有效的防水施工方法。现将具体施工方法介绍如下。
Waterproof sheets and other waterproof materials, require a certain degree of impermeability and hydrophobicity, but also requires a certain thickness and anti-aging, in order to ensure the durability of its use. At the same time also requires a certain bending toughness and ductility and tensile strength, which is the material requirements. Engineering waterproofing is mainly achieved by two methods of drainage and water shutoff. Drainage is to guide the flow of water through the slope, plugging water by waterproof material performance and construction methods to achieve. Engineering practice has proved that the practice of combining mechanical and thermal welding is an effective waterproofing method. The specific construction methods are as follows.