化工矿物与加工2025，Vol.54Issue(5)：27-33,7.DOI:10.16283/j.cnki.hgkwyjg.2025.05.004
基于钢渣-锂渣的早强型胶凝材料制备及其水化机理研究
Synergistic preparation and hydration mechanism of early-strength cementitious materials based on steel slag and lithium slag
摘要
Abstract
In order to solve the problem of difficult utilization and large accumulation of solid waste in the metallurgical industry,which causes environmental pollution,this study combined steel slag micro powder with P·O 42.5 ordinary Portland cement,and introduced lithium slag with different dosages(10%,15%,20%)as activators to prepare early strength steel slag based cementitious materials with excellent performance.Test the mechanical proper-ties of early strength steel slag based cementitious materials,analyzed their elemental composition,crystal structure,thermal stability,and microstructure,and explored their hydration mechanism.The results show that the early com-pressive strength of the cementitious material after adding lithium slag is significantly improved,which is due to the active participation of SiO2 and Al2O3 in the lithium slag in the hydration reaction,which promotes the consumption of Ca(OH)2,and generates more hydration products(C-S-H gel,ettringite(AFt),etc.)that are conducive to strength development and fill the pores of the gel,enhancing the compactness and overall strength of the material.The optimal formula for early strength steel slag based cementitious material is 15%steel slag micro powder and 15%lithium slag.关键词
钢渣微粉/锂渣/激发剂/水化机理/资源化利用Key words
steel slag powder/lithium slag/stimulants/mechanism of hydration/resource utilization分类
土木建筑引用本文复制引用
万奇林,马伟克,任晓健,赵令,朱海亚,苏畅,张浩..基于钢渣-锂渣的早强型胶凝材料制备及其水化机理研究[J].化工矿物与加工,2025,54(5):27-33,7.基金项目
安徽省新时代育人质量工程项目(研究生教育)(2023qygzz016) （研究生教育）
马鞍山市农村与社会发展领域科技计划项目(2022KN-13). （2022KN-13）
