废弃钢渣改良黄泛区粉土强度特性的试验研究  

Experimental Study on Strength Characteristics of Loess-like Silt in Yellow River Floodplain Improved by Waste Steel Slag

作　　者：王志超 刘长瑞 程钰 纪巧玲 Wang Zhichao;Liu Changrui;Cheng Yu;Ji Qiaoling(Shandong Road&Bridge Construction Group Co.,Ltd.,Jinan,Shandong 250014;Institute of Communications,Shandong University of Science and Technology,Qingdao,Shandong 266590)

机构地区：[1]山东省公路桥梁建设集团有限公司,山东济南250014 [2]山东科技大学交通学院,山东青岛266590

出　　处：《现代工程科技》2025年第2期45-48,共4页Modern Engineering Technology

基　　金：中国工程科技发展战略山东研究院咨询研究项目:山东省工业碳达峰技术发展路径战略研究(02030132101);山东省企业技术创新项目:高速公路轻质固废与粉土混合料路用性能与施工技术研究(SKDHKQ20240296)。

摘　　要：为解决黄河冲积平原地区高速公路改扩建工程中,黄泛区粉土作为新路基的填筑土存在压实困难、加固材料效果差、难以把控压实质量等问题,通过室内三因素三水平的正交试验,研究废弃钢渣的掺量、钢渣粒径大小及固化剂掺量对粉煤灰和粉土混合填料强度及路用性能的影响,并挑选出最佳组合。通过试验得出最优组合为:0~2.36 mm粒径钢渣10%,2.36~4.75 mm粒径钢渣0,水泥8.0%,该组合CBR为11%,可以满足高速公路和一级公路的上路床要求。In the reconstruction and expansion projects of expressways in the Yellow River alluvial plain area,loess-like silt in the Yellow River floodplain,when used as filling soil for new roadbeds,has problems such as difficult compaction,poor reinforcement material effects,and hard-to-control compaction quality.Through an indoor orthogonal test with three factors and three levels,this paper studies the effects of the content of waste steel slag,the particle size of steel slag,and the content of curing agent on the strength and road-use performance of the mixed filler of fly ash and loess-like silt,and selects the optimal combination.The test results show that the optimal combination is:10%of steel slag with a particle size of 0-2.36 mm,0 of steel slag with a particle size of 2.36-4.75 mm,and 8.0%of cement.The CBR of this combination is 11%,which meets the requirements of the upper roadbed of expressways and first-class highways.

关 键 词：钢渣改良 固化 黄泛区粉土 路用性能 固废利用 

分 类 号：U414[交通运输工程—道路与铁道工程]