基于固化机理的固废基土壤固化剂研究进展  

Research progress in solid waste-based soil curing agents based on curing mechanisms

作　　者：凌一峰 孙彦兵 高发亮 王聪 LING Yifeng;SUN Yanbing;GAO Faliang;WANG Cong(School of Qilu Transporation,Shandong University,Jinan 250002,China)

机构地区：[1]山东大学齐鲁交通学院,山东济南250002

出　　处：《武汉科技大学学报》2025年第2期81-91,共11页Journal of Wuhan University of Science and Technology

基　　金：山东省自然科学基金项目(ZR2021QE174);浙江工业大学浙江省工程结构与防灾减灾技术研究重点实验室基金项目(KLCDF230301).

摘　　要：基于固化机理,将固废材料划分为胶凝型、膨胀型和激发型三类,并探讨了它们对固化土抗压强度及耐久性能的影响规律。胶凝型固废通过水化或火山灰反应生成胶凝物质,增强土体整体性,是固废基土壤固化剂提高土体性能的基础。膨胀型固废对胶凝型固废起到补充作用,而激发型固废则可以激活胶凝型固废的活性。结合SEM和XRD等微观测试方法,揭示了固废反应的微观机理,进一步解释了固化土强度和耐久性能提升的原因。Based on the curing mechanism,solid waste materials were classified into three categories:cementitious,expansive,and activation types,with their mechanisms influencing compressive strength and durability of solidified soil systematically investigated.Cementitious solid wastes generate binding materials through hydration or pozzolanic reactions,enhancing soil integrity and forming the basis for performance improvement in solid waste-based soil stabilizers.Expansive solid wastes promote the cementation effect of cementitious types,while activation-type solid wastes effectively stimulate the reactivity of cementitious components.Through microstructural characterization techniques including scanning electron microscopy(SEM)and X-ray diffraction(XRD),the underlying mechanisms of solid waste reactions were elucidated,providing a scientific explanation for the enhanced mechanical strength and durability observed in the stabilized soil.

关 键 词：固废基土壤固化剂 固化机理 抗压强度 耐久性能 微观结构 

分 类 号：U414[交通运输工程—道路与铁道工程]