背贴式橡胶止水带和外贴式橡胶止水带属同类产品,用途基本相同。背贴式止水带用于地下管廊变形缝和施工缝处的防水,适用于底板底。背贴式止水带施工铺设在管廊变形缝的底板底,首先是变形缝定位弹线,确保背贴式止水带铺设安装在变形缝中心位置。管廊变形缝背贴式止水带铺设,背贴式止水带由“一”字型和“L”型两种组合而成。背贴式止水带安装前必须对止水带铺设面进行清理,不得有尖锐的杂物,以免扎破止水带,使止水带失去应有的防水效果。外贴式橡胶止水带埋设位置应准确,并与止水带底部防水卷材贴合密实,不得出现空鼓、翘边等现象。
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