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J. Korean Ceram. Soc. > Volume 24(4); 1987 > Article
Journal of the Korean Ceramic Society 1987;24(4): 329.
슬래그-규산질 미분말을 함유하는 시멘트 경화체중에서의 이온의 확산(II) SO4 이온의 확산
김태현, 최상흘, 한기성1
한양대학교 무기재료공학과
1인하대학교 무기재료공학과
Diffusion of Ion in Hardened Cement Paste Containing Slag-Siliceous Powder(II) Diffusion of SO4-- Ion
Diffusion of SO4-- ion in hardened cement paste with slag and siliceous powders such as silica fume and white carbon was investigated. Ca(OH)2 from hardenend cement paste was dissolved by sea-water and then gypsum was formed from the reaction of Ca++ in hardenend cement paste and SO4-- ions in MgSO4 solution. A part of the gypsum by reaction with calcium aluminate hydrates formed ettringite. Amounts of SO4-- ions passed through hardened cement paste was less than that of Cl- ions(Dcl-) in hardened cement paste were 0.1∼0.6${times}$10-11$textrm{cm}^2$/sec and 1∼4${times}$10-8$textrm{cm}^2$/sec respectively.
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