污水管道中混凝土硫酸腐蚀研究进展

Research Progress on Sulfuric Acid Corrosion of Concrete in Sewage Pipes

随着国家对污水系统规划的重视,混凝土在污水管道中得到了广泛应用。混凝土在污水管道服役期间会受到物理、化学以及生物的协同作用而劣化。在诸多侵蚀介质中,硫酸对混凝土的性能影响最为突出。为了进一步加深对此研究领域的理解,本文主要从污水管道中的硫酸来源、混凝土的硫酸腐蚀机理、影响硫酸腐蚀的因素及抗硫酸腐蚀对策等研究进展进行介绍,寻找有效的污水管道混凝土防腐对策。

With the attention paid to the sewage system planning by the country,concrete has been widely used in sewage pipes.During the service period of sewage pipelines,concrete will be subjected to the synergistic effects of physics,chemistry and biology,leading to its deterioration.Among many corrosive media,sulfuric acid has the most prominent impact on the performance of concrete.In order to further deepen the understanding of this research field,this paper mainly introduces the research progress from the sources of sulfuric acid in sewage pipes,the mechanism of sulfuric acid corrosion of concrete,the factors affecting sulfuric acid corrosion,and the countermeasures against sulfuric acid corrosion,and looks for effective anti-corrosion measures for sewage pipe concrete.