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请问放线口后浇的混凝土出现渗漏的现象，什么原因造成的呢？ - 工程施工 - 项目管理 - 氿上知道
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主要有两方面原因：一是新旧砼接缝未处理好；而是后浇砼未振捣密实。
方法：一、采用掺入膨胀剂的比原砼高一个强度等级的细石砼作为后浇砼；
二、浇筑前把原砼表面凿毛用清水冲洗干净后再浇筑新砼并振捣密实。