A STUDY ON DURABILITY OF CONCRETE STRUCTURES UNDER THE COMPLEX DETERIORATION CONDITION DUE TO ACID RAIN AND CARBONATION
Recently,a complex deterioration due to plural deterioration factors has been posedas one of the serious problems in RC structures. However the effect of complex deteriorationhas been not cleared,especially as for concrete using ground granulated blast-furnace slag(GGBS) which,in Japan,commonly has been applied in coastal environment. In this study,the experimental examinations on the deterioration due to each/both acid rainand carbonation were carried out by accelerated tests using mortar specimens with severalcontents of the GGBS. As the results,by using GGBS without suitable initial curing,neutralization depth and corrosion area of re-bar tends to increase. Consequently,it wasconfirmed quantitatively that not only the content of GGBS but also the initial curing periodhad the influence on the durability of concrete using GGBS as mineral admixture under thecomplex deterioration condition.
ground granulated blast-furnace slag complex deterioration acid rain carbo-nation durability of concrete
J. MATSUMOTO K. TAKEWAKA T. YAMAGUCHI H. HAZEHARA
D.Student,Graduate school of science and Engineering,Kagoshima University,Japan Professor,Department of Ocean Civil Engineering,Kagoshima University,Japan A,Professor,Department of Ocean Civil Engineering,Kagoshima University,Japan
国际会议
The International Conference on Durability of Concrete Structures(2008年混凝土结构耐久性国际学术会议)
杭州
英文
738-744
2008-11-01（万方平台首次上网日期，不代表论文的发表时间）