文章基本信息

标题：MECHANICAL PROPERTIES AND STRENGTHMECHANISM OF COAL METAKAOLIN-BAYER RED MUDCOMPLEX
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作者：Jianping Liu ; Yisi Lu ; Xiaohong Bai 等
期刊名称：Fresenius Environmental Bulletin
印刷版ISSN：1018-4619
出版年度：2020
卷号：29
期号：9A
页码：8610-8619
语种：English
出版社：PSP Publishing
摘要：In this study, the compressive strength of a coal mctakaolin-Baycr red mud complex (referred to as CMK-RM complex) was tested by varying the coal metakaolin content. The compressive strength of the CMK-RM complex increased with (he increase in the coal metakaolin content and age. The Gauss-Markov linear model was used to establish a binary prediction model for the compressive strength of the CMK-RM complex. The relationship between (he compressive strength of (he CMK-RM complex and the coal metakaolin content, along with age, was established. The error bemTen the measured and pre-dictcd values was approximately 5%.丨n addition, combined with X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), and chemical hydrated reactions of coal metakaolin, the phase composition and microstmcturc of the CMK-RM complex were analyzed. Thus, the strength mechanism of the coal metakaolin-solidifled Bayer red mud was clarified. This study explains the reasons for the change in the compressive strength of the CMK-RM complex in terms of the strength mechanism.
关键词：Coal metakaolin;Bayer red mud;Phase analysis;Microstructure;Prediction model