管道防腐大修用石油沥青卷材的研制及应用

The development and application of the petroleum asphalt rolls in reconditioning the corrosion prevention coating of pipelines

针对国内管道沥青覆盖层大修中存在的问题，提出研究新材料新工艺的必要性。阐述石油沥青管道防腐大修卷材对所用增强胎材的性能要求和选定方法、卷材制备主要工艺参数对卷材性能的影响及其控制原则、大修用卷材的技术指标和使用方法，并依据多条管线大修中卷材的实际应用结果，总结出卷材施工工艺较沥青热浇涂工艺的优越之处。

This paper expounds the property requirements and selection methods for the strengthening prime material imposed by the petroleum asphalt rolls for reconditioning the corrosion prevention coating of pipelines, the effect of the main parameters for preparing the rolls on the properties of the rells and the controlling principle thereof, and the technical indexes and application methods of the rolls.