【作者】 勾密峰； 管学茂； 孙倩；

【Author】 GOU Mifeng GUAN Xuemao SUN Qing(School of Materials Science & Engineering,Henan Polytechnic University,Jiaozuo 454003,China)

【机构】 河南理工大学材料科学与工程学院；

【摘要】 通过化学分析法测定了水化硅酸钙吸附氯离子的能力,通过核磁共振法和拉曼光谱法测定了水化硅酸钙的结构。结果表明:水化硅酸钙吸附氯离子的能力与其结构密切相关;水化硅酸钙平均链长为4左右时,其吸附氯离子的能力最强;氯盐阳离子促进了水化硅酸钙链长的增加,使其吸附氯离子的能力增强;与钠离子相比,钙离子更能促进水化硅酸钙链长的增加,从而使其吸附更多的氯离子。更多还原

【Abstract】 The chloride binding ability in the calcium silicate hydrate is measured by a chemical analysis method,and C-S-H structure was determined by nuclear magnetic resonance spectroscopy and Raman spectroscopy.The results show that the chloride binding ability of calcium silicate hydrate is closely related to its structure.The calcium silicate hydrate,the average chain length of about 4 chlorine ion,has the strongest chloride binding ability.The cation of chloride salt promote increasing average chain length of the hydrated calcium silicate,and enhance its chloride binding ability.Compared with the sodium ion,calcium ion promote better increasing average chain length of the hydrated calcium silicate,thereby to bind more chloride ions.更多还原