CAJ | 학술논문

通过对采用青岛海湾大桥混凝土结构涂层体系制作的防腐试件取样测试，分析了在北方冰冻海洋环境下表面涂层的防腐性能和对混凝土结构抗海水腐蚀性能的影响。研究表明：经5a现场暴露试验，混凝土表面涂层自身质量以及对混凝土的防护效果均较好，与混凝土表面的黏结强度大于2.5 MPa；尽管在混凝土表层1~3 mm处有少量氯离子渗入，但相比无涂层混凝土，氯离子含量低4~7倍，可有效延缓海水中氯离子的侵蚀，大幅延长混凝土结构的使用寿命。
통과대채용청도해만대교혼응토결구도층체계제작적방부시건취양측시，분석료재북방빙동해양배경하표면도층적방부성능화대혼응토결구항해수부식성능적영향。연구표명：경5a현장폭로시험，혼응토표면도층자신질량이급대혼응토적방호효과균교호，여혼응토표면적점결강도대우2.5 MPa；진관재혼응토표층1~3 mm처유소량록리자삼입，단상비무도층혼응토，록리자함량저4~7배，가유효연완해수중록리자적침식，대폭연장혼응토결구적사용수명。
Surface coating specimens that made according to coating system for concrete structure of Qingdao Bay Bridge were carried out exposure test. The anticorrosion performance and chloride ions resistance to seawater for surface coating had been analyzed in the frozen north sea environment. The research shows that surface coating has good protection and coating quality after 5 years, and the adhesive strength with concrete surface is more than 2.5 MPa. Although the distance of 1 mm to 3 mm from concrete surface penetrated a small amount of chloride ions, the chloride ions concentration reduced about 4 to 7 times comparing with the same depth of untreated concrete. Surface coating can effectively reduce the chloride ion erosion and im-prove the service life of the marine concrete structure.