硅酸盐学报Issue(4)：500-505,6.DOI:10.7521/j.issn.0454-5648.2014.04.13
碳化环境下矿物掺合料对固化态氯离子稳定性的影响
Effect of Supplementary Cementitious Materials on Stability of Bound Chloride Ion Under Carbonation Condition
摘要
Abstract
The effect of fly ash and ground granulated blast-furnace slag (GGBS)on the stability of bound chloride ion under carbonation condition was investigated via an inner-induced sodium chloride method.The samples were characterized by X-ray diffraction and differential scanning calorimeter,respectively.The results show that the bound chloride ion will lose its stability and become free under carbonation condition,resulting in the dissolution of the Friedel salt and C-S-H gel.The fly ash and GGBS both have a negative effect on the stability of bound chloride ions under such a condition,and their addition can accelerate the transformation of chloride ions from binding to free,especially for fly ash.It is also certified that calcium monocarboalumi-nate hydrate,which is a sole transitional product in the Friedel salt carbonated process,can be dissolved due to the carbonation reaction.关键词
碳化/固化态氯离子稳定性/粉煤灰/矿渣微粉Key words
carbonation/stability of bound chloride ion/fly ash/ground granulated blast-furnace slag分类
化学化工引用本文复制引用
耿健,莫利伟..碳化环境下矿物掺合料对固化态氯离子稳定性的影响[J].硅酸盐学报,2014,(4):500-505,6.基金项目
国家自然科学基金(51108415)项目资助 （51108415）
宁波市创新团队项目(2011B81005)。 （2011B81005）
