由于多种原因导致桥墩水库大坝沥青混凝土防渗墙体出现裂缝并漏水,当时采用SBS沥青防水卷材进行了表面粘贴处理,但由于该材料耐老化性能差,仅使用了约4年就失去了防渗作用。2001年选用了耐老化性能优良,又能冷贴施工的CNR 922氯化聚乙烯橡皮防水材料进行防渗修补,经几年实践证明处理效果良好。 Due to various reasons, cracks and water leakage occurred in the asphalt concrete impervious wall of the bridge pier dam, and the SBS bitumen waterproofing membrane was used for surface sticking treatment. However, due to poor aging resistance, the material lost in only about 4 years Anti-seepage effect. In 2001, CNR 922 chlorinated polyethylene rubber waterproofing material with excellent anti-aging performance and cold-sticking construction was selected for anti-seepage repair. After several years of practice, it has been proved that the treatment effect is good.