石灰对不同区域红黏土液塑限的影响研究  

Research on the Influence of Lime on the Liquid Plastic Limit of Red Clay in Different Regions

作　　者：李季欣 Li Jixin(Liaoning Highway Surveying and Designing Company,Shenyang 110000,China)

机构地区：[1]辽宁省公路勘测设计公司,沈阳市110000

出　　处：《北方交通》2024年第11期31-33,共3页Northern Communications

摘　　要：红黏土较高的液限和较差的水稳定性是制约其应用于实际道路工程的顽疾。为解决红黏土高液限问题,文章以石灰为改良材料,通过界限含水率试验,在不同区域红黏土中掺入不同掺量的石灰,分析了不同石灰掺量对不同区域红黏土液塑限的影响。结果表明:石灰能显著降低红黏土的液限和塑性指数,改善红黏土的亲水性,改善效果对不同区域红黏土均具有适用性。The high liquid limit and poor water stability of red clay are the stubborn obstacles that restrict its application in practical road engineering.In order to solve the problem of high liquid limit of red clay,the influence of different amounts of lime on the liquid plastic limit of red clay in different regions is analyzed by using lime as the improved material and mixing different amounts of lime in the red clay in different regions to perform the boundary moisture content test.The results show that:lime can significantly reduce the liquid limit and plasticity index of red clay,improve its hydrophilicity,and the improvement effect is applicable to red clay in different regions.

关 键 词：石灰 红黏土 液限 塑限 塑性指数 

分 类 号：U414[交通运输工程—道路与铁道工程]