工业废渣土壤固化剂改良黄泛区粉土研究  

Study on Stabilization of Silt in Yellow River Flooded Area with Industrial Waste Soil Solidifying Agent

作　　者：刘建锋 张晓果 王晔晔 Liu Jianfeng;Zhang Xiaoguo;Wang Yeye(Zhengzhou Highway Development Center,Zhengzhou Henan 451450,China;Henan Provincial Communications Planning&Design Institute Co.,Ltd.,Zhengzhou Henan 451450,China;Henan Key Laboratory of Solid Waste Materials Recycling in Road Engineering,Zhengzhou Henan 451450,China)

机构地区：[1]郑州市公路事业发展中心,河南郑州451450 [2]河南省交通规划设计研究院股份有限公司,河南郑州451450 [3]河南省固废材料道路工程循环利用重点实验室,河南郑州451450

出　　处：《城市建筑》2021年第26期137-140,147,共5页Urbanism and Architecture

基　　金：河南省交通运输科技计划项目:郑州沿黄地区粉土土凝岩稳定处治技术(2020J3)。

摘　　要：本文对比研究了水泥和以工业废渣为材料制备的土壤固化剂对黄泛区低液限粉土的改良作用。研究表明,土壤固化剂早期水化活性低、凝结时间长,对稳定土的施工控制十分有利,在相同条件下,土壤固化剂固化土的90天劈裂强度要高于水泥固化土,温缩系数要小于水泥固化土。微观分析表明,土壤固化剂固化土颗粒间棒状水化产物较为明显,硅酸钙和钙矾石的含量明显多于水泥固化土。This paper studies and compared the effect of cement and soil solidifying agent prepared from industrial waste residue on the improvement of low liquid limit silt in the Yellow River Flooded Area. The results showed that the early hydration activity of the soil solidifying agent was low, and the setting time was longer, which was very beneficial to the construction control of stabilized soil. Under the same conditions, compared with cement stabilized soil, the 90 d splitting strength of soil stabilized by soil solidifying agent was higher and the temperature shrinks coefficient was smaller. The microscopic analysis showed that the rod-shaped hydration products between the soil particles solidified by the soil solidification agent were more obvious, and the content of calcium silicate and ettringite was significantly higher than that of the cement solidified soil.

关 键 词：工业废渣 土壤固化剂 黄泛区粉土 CBR 劈裂强度 温缩系数 微观分析 

分 类 号：U414[交通运输工程—道路与铁道工程]