磨细矿渣抗氯离子侵蚀性能的机理研究  

THE MECHANISM OF GROUND GRANULATED BLAST-FURNACE SLAG TO RESIST CHLORIDE CORROSION

作　　者：罗睿 蔡跃波[2] 王昌义[2] 黄晓明[3] 

机构地区：[1]南京市交通局 [2]南京水利科学研究院 [3]东南大学

出　　处：《土木工程学报》2002年第6期100-104,共5页China Civil Engineering Journal

基　　金：国家九五攻关项目(96-415-04-03-01)

摘　　要：用双电层理论和F盐的形成机理分析了磨细矿渣具有优越抗氯离子侵蚀性能的机理。磨细矿渣的C3A含量高 ,硫酸根含量低 ,水化产物碱性低 ,因而其氯离子结合能力更强。磨细矿渣高性能混凝土孔结构细化 。The response of ground granulated blast?furnace slag to resist chloride corrosion is studied in the paper.It is analyzed by both the theory of double electric layer and the Fridel salt′s formation.It is found that the C 3A in GGBS is higher than in the cement.The chloride binding is stronger for the higher C 3A content. It is also found that both the sulfate radical content and the alkalinity of hydration products in GGBS are lower than in the cement.The pore structure of high performance GGBS concrete is more refined;the double electric layer is more effected to restrict the diffusion of chloride.

关 键 词：磨细矿渣 氯离子 硫酸根 双电层 F盐 

分 类 号：TU528.33[建筑科学—建筑技术科学]