目前全国有二万多公里的预应力钢筋混凝土管道埋地使用。预应力管的环向钢筋的腐蚀问题日趋尖锐、极待解决。国外对此早已采用了阴极保护技术,效果显著。苏州水泥制品研究院首次将牺牲阳极法阴极保护技术应用于营口市一条预应力钢筋混凝土输水管道上,成功的控制了该管线的环向筋的腐蚀,延年了使用寿命,从而填补了阴极保护技术在这一领域的空白。 At present, there are more than 20,000 kilometers of prestressed reinforced concrete pipe buried. Prestressed pipe corrosion of the ring reinforcement increasingly sophisticated, yet to be resolved. Foreign countries have long adopted this cathodic protection technology, the effect is significant. Suzhou Cement Research Institute for the first time sacrificial anode cathodic protection technology applied to a prestressed concrete pipelines in Yingkou City, the successful control of the pipeline ring to the corrosion of the ribs, extending the service life, thus filling the cathode Protection technology in this area is blank.