钢渣石灰稳定土用于道路基层的性能研究  

Study on the Performance of Steel Slag Lime Stabilized Soil Used in Road Base

作　　者：侯凤健 张磊 HOU Fengjian;ZHANG Lei(Donghui Testing and Certification Group Co.,Ltd.,Jinan,Shandong 250032;Qingdao Dongji Petrochemical Engineering Co.,Ltd.,Qingdao,Shandong 266555)

机构地区：[1]东汇检测认证集团有限公司,山东济南250032 [2]青岛东基石化工程有限公司,山东青岛266555

出　　处：《长江工程职业技术学院学报》2024年第2期6-10,共5页Journal of Changjiang Institute of Technology

摘　　要：为了研究钢渣和石灰综合稳定土的路用性能,文章通过掺配不同比例的钢渣与石灰,对稳定后的土样进行了室内击实试验、无侧限抗压强度试验、渗水试验以及干缩试验。试验结果表明:当石灰掺量不变时,随着钢渣掺量的增加,钢渣石灰稳定土的最大干密度增大,最佳含水量减小;当钢渣掺量不变时,随着石灰掺量的增加,最大干密度减小,最佳含水量增大;当钢渣掺量为40%~60%,石灰掺量不超过8%时,随着石灰掺量的增加,无侧限抗压强度呈增长趋势,抗渗性能和干缩性能均明显改善,但当石灰掺量超过8%时,无侧限抗压强度出现下降趋势,抗渗性能和干缩性能改善均不明显,建议石灰掺量不宜超过8%;当石灰掺量一定时,随着钢渣掺量的增加,无侧限抗压强度增长趋势逐渐变慢,考虑到经济性和强度设计要求,建议合理选择钢渣的掺量。In order to study the road performance of steel slag and lime comprehensively stabilized soil,this article conducted indoor compaction tests,unconfined compressive strength tests,water seepage tests and Dry shrinkage test.The test results show that:when the lime content remains unchanged,as the steel slag content increases,the maximum dry density of the steel slag lime stabilized soil increases and the optimal water content decreases;when the steel slag content remains unchanged,as the lime content increases As the amount of steel slag increases,the maximum dry density decreases and the optimal moisture content increases;when the steel slag content is 40%to 60%and the lime content does not exceed 8%,as the lime content increases,the unconfined compression resistance The strength shows an increasing trend,and the impermeability and dry shrinkage properties are significantly improved.However,when the lime content exceeds 8%,the unconfined compressive strength shows a downward trend,and the impermeability and dry shrinkage properties are not significantly improved.It is recommended that lime The dosage should not exceed 8%;when the lime dosage is constant,as the steel slag dosage increases,the unconfined compressive strength growth trend gradually slows down.Taking into account the economic and strength design requirements,it is recommended to reasonably select the steel slag dosage.

关 键 词：道路基层 性能研究 钢渣石灰稳定土 钢渣掺量 石灰掺量 

分 类 号：U414[交通运输工程—道路与铁道工程] U416.2