增钙煤矸石的火山灰活性研究  

STUDY ON POZZOLANIC ACTIVITY OF ADDED-CALCIUM COAL GANGUE

作　　者：宋旭艳[1] 李东旭[2] 韩静云[1] 

机构地区：[1]苏州科技学院土木工程学院,江苏苏州讲师215011 [2]南京工业大学材料科学与工程学院,南京教授博士生导师210009

出　　处：《煤炭转化》2008年第2期68-73,共6页Coal Conversion

基　　金：国家重点基础研究发展规划(973)项目(2001CB610703);无机及其复合新材料实验室(江苏省高校省级重点实验室)开放研究课题资助项目(wjjqfhxcl200501);苏州市建设局科研基金资助项目(Z938);苏州科技学院科研基金指导性项目(Z1012)

摘　　要：在原样煤矸石的分析基础上,提出一种合适的增钙活化煤矸石样,并对其进行火山灰活性的测定,结果表明,在煤矸石的增钙活化过程中掺入适量的石膏和萤石等组分作为矿化剂时,能生成较多的水硬性矿物且其火山灰活性较佳;活性评定实验表明,在增钙活化煤矸石与氧化钙的复合体系中,Ca(OH)2含量和化学结合水量随龄期的变化规律与其水化过程的结构特征是一致的.After analysis on raw coal gangue, added-calcium coal gangue can be introduced. Its pozzolanic activity may be analyzed. The results show that when proper amount of gypsum and fluorite were taken as for mineralizer in the course of calcinations of calcium-doped coal gangue,much mineral with hydrated setting can come into being and its pozzolanic activity can behave very well. The experiment of activity evaluation can approve the change on structural characteristic of hydration process of added-calcium coal gangue with lime is consistent basically with that of Ca（OH）2content and chemically combined water.

关 键 词：增钙煤矸石 火山灰活性 Ca(OH)2 含量 化学结合水量 微结构分析 

分 类 号：TD849.5[矿业工程—煤矿开采]