日照港煤码头钢筋混凝土构件涂层修复技术

Coating repair technology in reinforced concrete structure of Rizhao port's coal pier

重力墩式钢筋混凝土结构是大型海港码头结构设施的主体。其结构的特殊性导致其腐蚀最为严重,故亟须研究开发良好的腐蚀控制和涂层修复技术。以日照港煤码头为主要研究背景和研究对象,对重力墩式海港码头钢筋混凝土结构的检测、修复技术和配套方案等问题进行研究。选取合适的防腐涂料并采取配套施工方案修复后,涂层附着力达5.0 MPamm2左右,钢筋混凝土构件的透气性和饱水性均达到了优良级别,因此涂层系统对混凝土结构具有明显的防腐蚀效果。

The reinforced concrete of gravity pier is the main body of seaport pier, the corrosion to which is serious because of its special construction, thus there is an urgent need of exploring the anti-corrosion and coating repair technology. Taking the coal pier in Rizhao port as a study case, we explore the detection ＆ repairing technology and corresponding implementation measures for the gravity pier in Rizhao port. With proper anti-corrosive coating and by corresponding implementation measures, the coating＇s adhesion reaches about 5.0 MPa/mm^2, and the protective quality of air permeability and sorptivity are quite good. Therefore the coating system has obvious effect of corrosion-prevention to the concrete structure.