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土工膜焊接教程 土工膜焊接检测工艺
浏览: 发布日期:2020-08-06

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  检测按三个步骤进行,即目测、充气检测及破坏试验。目测主要是对铺设的pe膜生产厂家土工膜外观、焊缝质量、T型焊接、基底杂物等进行细致的检查,所有施工人员对这一工作都应贯彻在全部施工过程中;除目检外,如有必要还可采用真空检测和气压检测,充气压检测的充气强度为0.25mpa,5min不漏气,考虑到卷材较柔软易变形,允许压力下高密度聚乙烯土工膜降20%;