影响城市排水建筑物耐久性的主要因素及对策

Factors Affecting the Durabilities of Urban Drainage Buildings and Countermeasures

城市排水混凝土建筑物由于存在裂缝、混凝土炭化、钢筋锈蚀、冻融冻胀、水质侵蚀和气蚀,混凝土碱集料反应等病害,我国各大中小城市排水工程的耐久性普遍不足。提出了为改善排水工程的耐久性,应从建筑材料、工程设计、施工工艺、日常运行管理等诸方面采取适当的措施,延长建筑物的使用寿命。

Owing to a number of harm such as cracks, concrete carbonification, Steel rust, being swollen and frozen, water erosion, gas corrosion, and concrete alkali aggregate reaction, there are low durabilities of drainage buildings in most cities, To improve the durabilities of urban drainage buildings ,the paper suggests that some countermeasures should be taken from aspects of building materials, engineering design, construction technology, and daily management to extend the useful life of project.