埋地给排水管道环氧煤沥青防腐层的质量通病及控制

Common quality problems and control of coal tar epoxy anticorrosion coating for buried water supply and drainage pipelines

天然气吉化工程质量监督站在项目监督工作中发现，埋地给排水管道环氧煤沥青防腐层质量问题十分突出。结合现场实际，分析讨论了产生工程质量问题的三类原因，制订了五项控制措施及解决方法，基本上解决了施工中常见的质量问题，为石油化工建设行业埋地管道防腐质量受控，装置长周期稳定运行以及安全环保提升积累了经验。

Jilin Petrochemical Quality Supervision Station finds in the project supervision that the quality problems exist seriously in coal tar epoxy anticorrosion coating for buried water supply and drainage pipelines. Three kinds of reasons causing engineering problems are analyzed based on field real situation. Five control measures and solutions are worked out, which solves basically the common construction problems and helps quality control of buried pipeline anticorrosion.