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膨润土矿物学性质指标与性能指标的相关性研究

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为了构建膨润土矿物学性质指标与性能指标之间的相关性模型,收集和整理了全国不同产地膨润土相关矿物学指标与性能指标的测试数据,并采用SPSS软件进行相关性分析及聚类分析.研究结果表明,钠离子交换容量ENa+、碱性系数、pH值以及底面间距d001这4个矿物学性质指标两两显著相关,是影响膨胀容、膨润值、吸水率、热湿拉强度与胶质价5个性能指标的主要因素.层电荷、吸蓝量及阳离子交换量3个矿物学性质指标与湿压强度两两之间呈现出很强的相关性.将广西地区5个膨润土样品的吸蓝量数据代入湿压强度的逐步回归模型中时,其符合率均达到80%以上,说明通过测定吸蓝量可以较好地预测湿压强度.
Study on the correlation between the mineralogical property indexes of bentonite and performance indexes
In order to establish a correlation model between the mineralogy indexes and performance indexed of bentonite,test data on these indexes from various regions in China were collected and organized.Subsequently,SPSS software was employed for conducting correlation analysis and cluster analysis.The results demonstrated significant correlations among the four mineralogy indexes,namely sodium ion exchange capacity ENa+,alkalinity coefficient,pH,and base spacing d001.These factors were found to be the primary determinants influencing five performance indexes:swelling capacity,swelling value,water absorption rate,thermal wet tensile strength,and colloid index.The three mineralogical performance indexes,namely layer charge,methylene blue index,and cation exchange capacity,exhibited a robust correlation with wet compressive strength.Substituting the methylene blue index data of five bentonite samples from Guangxi into the stepwise regression model for wet compressive strength yielded a coincidence rate exceeding 80%,indicating that measuring methylene blue index can provide improved prediction of wet compressive strength.

bentonitemineralogical property indexperformance indexcorrelation

莫伟、冯雨鑫、莫秋凤、苏秀娟、于梅花、何春林

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广西大学资源环境与材料学院,广西南宁 530004

广西科学院,广西南宁 530000

膨润土 矿物学性质指标 性能指标 相关性

国家自然科学基金项目

51964005

2024

广西大学学报(自然科学版)
广西大学

广西大学学报(自然科学版)

CSTPCD北大核心
影响因子:0.767
ISSN:1001-7445
年,卷(期):2024.49(3)