CHLORIDE PENETRATION IN SELF COMPACTING CONCRETE BY CYCLIC IMMERSION
Durability and more specifically chloride penetration,is of major importance for reinforced concrete structures.As the conception of self compacting concrete(SCC)is totally different from traditional concrete(TC),some changes in durability behaviour might occur.In order to locate and prevent possible problems,the chloride penetration in SCC has to be investigated.An extended experimental programme was set up: the chloride penetration of 16 self compacting concrete mixtures and 4 traditional concrete mixtures was determined.The test is performed on cylindrical specimens with a diameter of 230mm and a height of 70mm.These specimens arc alternately immersed in a solution containing chlorides and exposed to air.One cycle takes approximately 1 hour.After 6,12,18,24,30 and 36 weeks the specimens are broken and the penetration depth is determined.For the self compacting concrete,four types of cement and three types of filler(fly ash and two types of limestone filler with a different grading curve)are used and the influence of the amount of powder,water,the water/cement ratio and the cement/powder ratio is studied.
K.Audenaert V.Boel G.De Schutter
Magnel Laboratory for Concrete Research,Department of Structural Engineering,Ghent University,Belgium
国际会议
长沙
英文
355-362
2005-05-26（万方平台首次上网日期，不代表论文的发表时间）