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[篇名]
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化学结合水法在增钙煤矸石活化程度评定中的应用
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[著者]
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宋旭艳; 李东旭
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[机构]
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苏州科技学院土木工程系, 苏州 215011; 南京工业大学材料科学与工程学院,南京 210009
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[中文关键词]
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煤矸石; 增钙煅烧; 活性; 化学结合水量; 激发剂
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[外文关键词]
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coal gangue
calcinations with added-calcium activity chemically combined water content
excitant
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[分类号]
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[刊名]
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非金属矿
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[出版时间]
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2008年1月
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[来源]
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VOL31,NO.1._4—6
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[中文摘要]
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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。
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[外文摘要]
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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.
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