摘要
用等温吸附法测定了混凝土在系列氯化钠(NaCl)溶液中的平衡氯离子(Cl-)浓度,计算了硅灰混凝土对Cl-的总结合能力、化学结合能力以及物理结合能力,研究了硅灰掺量对混凝土Cl-结合能力影响的规律。结果表明:在水灰比与胶凝材料总量不变的条件下,随着硅灰的掺量逐渐增加,混凝土的氯离子总结合能力,化学结合能力以及物理结合能力的变化趋势都是线性降低的。
Chloride ion（ Cl-） equilibrium concentrations of concrete exposed to sodium chloride（ NaCl）solutions with different concentrations were determined by the isothermal adsorption method. For silicon fume concrete,the total Cl-binding capacity,chemical binding capacity and physical adsorption capacity were calculated,and the influence of silicon fume content on the Cl-binding capacity of concrete was investigated. The result show that for silicon fume concrete with constant water-to-bound ratio and binder content,as the silicon fume content is increased,both the total Cl-binding capacity,chemical binding capacity and the physical adsorption capacity decrease linearly.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2014年第9期2320-2325,共6页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金项目(51178221
21276264)
国家重点基础研究发展计划(973计划)资助项目(2009CB623203)
关键词
混凝土
氯离子结合能力
化学结合
物理吸附
硅灰
concrete
chloride ion binding capacity
chemical binding
physical adsorption
fume silica
