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PVC类耐根穿刺防水卷材不能通过耐根穿刺性能测试的主要原因之一是卷材中间的胎基层存在芯吸现象,植物根系在趋水性的作用下沿着胎基层逐渐穿入卷材内部,造成测试失败。本文在分析了胎基层网布结构的基础上,对网布和卷材成品进行了防水性能测试,结果表明,采用单丝上胶处理和单丝防水处理网布作为胎基层制成的PVC类耐根穿刺防水卷材可以有效避免胎基层芯吸现象。
One of the main reasons why PVC-based anti-root puncture waterproofing membrane can not pass the root puncture resistance test is that there is a wicking phenomenon in the middle of the membrane. The roots of plants gradually penetrate into the inner of the membrane , Causing the test to fail. Based on the analysis of the structure of the base fabric, the waterproof performance of the fabric and the web was tested. The results showed that the use of monofilament-treated and monofilament-treated fabrics as the PVC base layer Anti-root puncture waterproofing membrane can effectively prevent the phenomenon of the core layer wick.