钢渣粉作辅助胶凝材料的研究进展  

Research progress of steel slag powder as supplementary cementitious material

作　　者：芮雅峰 黄天勇[1] 张旋 钱春香[3] RUI Yafeng;HUANG Tianyong;ZHANG Xuan;QIAN Chunxiang(State Key Laboratory of Solid Waste Reuse for Building Materials,Beijing Building Materials Academy of Sciences Research,Beijing 100041,China;School of Civil Engineering and Architecture,Jiangsu University of Science and Technology,Zhenjiang 212114,China;School of Materials Science and Engineering,Southeast University,Nanjing 211189,China)

机构地区：[1]北京建筑材料科学研究总院有限公司,固废资源化利用与节能建材国家重点实验室,北京100041 [2]江苏科技大学土木工程与建筑学院,江苏镇江212114 [3]东南大学材料科学与工程学院,江苏南京211189

出　　处：《新型建筑材料》2025年第2期108-113,120,共7页New Building Materials

基　　金：“十四五”重点研发计划项目(2021YFB3802000)。

摘　　要：钢渣用作辅助胶凝材料时存在安定性差和活性低的应用瓶颈,主要归因于化学组成与矿物组成。一方面,钢渣中存在游离氧化钙和游离氧化镁,使其安定性较差;另一方面,钢渣中存在具有水化活性的硅酸盐矿相,但其含量较低,且水化能力相比于水泥熟料中相同矿物也有不足。为应对上述难题,采用不同途径对钢渣粉进行预处理,通过消耗游离矿物降低膨胀值,通过颗粒形态效应、矿相重构、水化过程调控等增强活性。此外,还需积极探索钢渣粉新的应用领域,为钢渣粉的资源化利用拓宽渠道。The poor stability and low activity of steel slag as supplementary cementitious material is mainly attributed to its chemical and mineral composition.On the one hand,the presence of f-CaO and f-MgO in steel slag results in poor stability.On the other hand,there are silicate mineral phases with hydration activity in steel slag,but their content is relatively low,and their hydration ability is also insufficient compared to the same minerals in cement clinker.To handle the above challenges,different approaches are adopted for pre-treatment of steel slag powder,reducing expansion value by consuming free minerals,moreover,enhancing activity through particle morphology effects,mineral phase reconstruction,and hydration process control.In addition,it is necessary to actively explore new application scenarios for steel slag powder and broaden channels for its resource utilization.

关 键 词：钢渣粉 辅助胶凝材料 安定性 活性 应用 

分 类 号：TU526[建筑科学—建筑技术科学]