煅烧低品位多矿物粘土作为辅助胶凝材料的可行性研究

IF 1.5 Q3 GEOSCIENCES, MULTIDISCIPLINARY
N. Rakhimova, R. Rakhimov, Artur R. Bikmukhametov, V. Morozov, A. Eskin, A. Gubaidullina
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引用次数: 4

摘要

近几十年来,煅烧粘土作为低熟料混合波特兰水泥的巨大潜力来源的相关性显著增加。本文研究了蒙脱土/绿泥石含量为9.37%、蒙脱土/高岭石/绿泥石含量为12.26%、方解石含量分别为29.73%和32.79%的两种低品位粘土作为补充胶凝材料的潜力。经800℃热处理后的粘土,其火山灰活性较差,C-(S)- h含量略有升高,CH含量略有下降,混合波特兰水泥浆体的力学性能下降。结果表明,所研究的粘土均在适宜生产火山灰的粘土范围之内。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Calcined low-grade multimineral clays as supplementary cementitious materials: a feasibility study
ABSTRACT The relevance of calcined clays as sources with great potential for low-clinker blended Portland cements has significantly increased in recent decades. This article reports on a study to evaluate the potential of the two low-grade clays containing 9.37% of montmorillonite/chlorite and 12.26% of montmorillonite/kaolinite/chlorite accompanied with 29.73% and 32.79% of calcite, respectively, as supplementary cementitious materials. The clays after thermal treatment at 800°C demonstrated poor pozzolanic activity, slight increase in the C-(S)-H and decline in the CH contents, and decrease in the mechanical properties of the blended Portland cement pastes. The results showed that the investigated clays fall below the range of the clays suitable for pozzolan production.
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来源期刊
Geosystem Engineering
Geosystem Engineering GEOSCIENCES, MULTIDISCIPLINARY-
CiteScore
2.70
自引率
0.00%
发文量
11
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