化学结合水法在增钙煤矸石活化程度评定中的应用  

Application of Chemically Combined Water Content Method in Evaluation on Activation Process 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系,苏州215011 [2]南京工业大学材料科学与工程学院,南京210009

出　　处：《非金属矿》2008年第1期4-6,9,共4页Non-Metallic Mines

基　　金：国家”973”重点基础研究发展规划资助项目(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);苏州科技学院科研基金指导性项目资助(Z1012)

摘　　要：在较低CaO掺入量的情况下,增钙煤矸石样的煅烧温度以1150℃为宜。随着水化龄期的延长,几种增钙煤矸石试样的水化程度也在逐渐增加,且随着液相介质中碱浓度的增加,化学结合水量也在逐渐增加,活性表现越好;以增钙样K2(煤矸石71%+石灰石25%+石膏3%+萤石1%)的活性为最佳。各增钙煤矸石力学性能和活性评定过程的试验分析结果,是一致的。In the case of lower amount of CaO, the suitable calcination temperature of added-calcium coal gangue is 1150℃. The experiment can approve that, with extending of hydration time, hydration degree of every sample can be increasing gradually, and with increasing of alkali concentration in the liquid medium, the amount of chemically combined water can be increasing gradually and activity, of added-calcium coal gangue is better. The activation of K2 coal gangue is best, which is composed of 71% coal gangue, 25% limestone, 3% gypsum and 1% fluorite. The experiment can also approve that the mechanical property of added-calcium coal gangue is in accordance with the results of the experiment of activity evaluation.

关 键 词：煤矸石 增钙煅烧 活性 化学结合水量 激发剂 

分 类 号：TD849.5[矿业工程—煤矿开采] TQ330.383[矿业工程—矿山开采]