长春工程学院学报（自然科学版）2025，Vol.26Issue(3)：32-37,6.DOI:10.3969/j.issn.1009-8984.2025.03.005
木质素-水泥复合改良粉质黏土冻胀融沉特性研究
Study on Frost Heave and Thaw Settlement Characteristics of Silty Clay Improved Composite by Lignin-Cement
摘要
Abstract
In order to effectively improve the silty clay in Liaoyuan area of Jilin Province,freeze-thaw tests indoor were conducted using lignin cement composite as the improvement material.The effects of three fac-tors,namely the content of calcium lignosulfonate,water content,and curing age,on the improvement of silty clay by lignin cement composite were analyzed.The results showed that the frost heave(thaw settle-ment)of the improved soil with an appropriate amount of lignin was significantly inhibited compared to the untreated soil and cement improved soil.The frost heave rate(coefficient of thaw settlement)decreased with the decrease of water content and decreased with the increase of curing age.The optimal lignin content for improving soil has been determined to be 1%(mass fraction,same throughout the article).Through grey correlation analysis,the degree of influence on frost heave rate(coefficient of thaw settlement)is de-termined to be in the order of lignin content>moisture content>curing age.关键词
木质素/冻胀率/融沉系数/灰色关联度分析Key words
calcium lignosulfonate/frost heaving rate/coefficient of thaw settlement/grey correlation analysis分类
建筑与水利引用本文复制引用
李世博,潘殿琦,王明新,刘华南..木质素-水泥复合改良粉质黏土冻胀融沉特性研究[J].长春工程学院学报（自然科学版）,2025,26(3):32-37,6.基金项目
吉林省科技发展计划重点研发项目(20220203002SF) （20220203002SF）
