硅酸盐学报2009，Vol.37Issue(1)：129-134,6.
矿物掺合料对混凝土氯离子结合能力的影响
INFLUENCE OF MINERAL ADMIXTURES ON CHLORIDE BINDING CAPABILITY
摘要
Abstract
The total chloride and free chloride contents of concretes were determined by the natural diffusion method. The chloride binding capabilities of ordinary concretes and concretes with mineral admixtures (fly ash, slag) were calculated. The influences of mineral admixture content, exposure time and curing age on the chloride binding capacity were discussed. The results show that with the increase of mineral admixture content the chloride binding capability of fly ash concrete first increases and then decreases, while that of slag concrete increases sharply. The chloride binding capability of concrete is related to the type of chloride salt, but shows no relationship with exposure time. At the same time, the chloride binding capacity of concrete continuously increases with the increase of curing age. Therefore, slag concrete with high slag content or fly ash concrete with 25% fly ash content is recommended for engi-neering application. A prolonged wet curing age is also preferred.关键词
混凝土/矿物掺合料/粉煤灰/矿渣:氯离子结合能力Key words
concrete/mineral admixture/fly ash/slag/chloride binding capacity分类
建筑与水利引用本文复制引用
胡蝶,麻海燕,余红发,曹文涛,翁智财..矿物掺合料对混凝土氯离子结合能力的影响[J].硅酸盐学报,2009,37(1):129-134,6.基金项目
江苏省自然科学基金前期预研(BK2005216)资助项目和国家自然科学基金(50178044)资助项目. （BK2005216）
