微生物-碳化改性钢渣及其对水泥水化特性影响研究进展
Research progress of microorganism-carbonization modified steel slag and its effect on hydration characteristics of cement
邓威 1翟健梁 1赖淏 1陆福洋 1宗有杰 2熊锐 1关博文 1常明丰1
作者信息
- 1. 长安大学 材料科学与工程学院,西安 710061
- 2. 长安大学 材料科学与工程学院,西安 710061;诺丁汉大学 土木工程学院,诺丁汉NG14BU
- 折叠
摘要
微生物诱导碳酸盐沉淀(MICP)是一种新型环保处理技术,其独特的矿化及生物酶催化机制在固废处理及利用方面展现出广阔前景.基于钢渣水化特性,本文探讨了碳化条件及生物酶特性对碳酸盐成核影响,分析并总结了 MICP与碳化反应机制、生物-碳化改性中钢渣的物相演变规律、碳酸钙成核及晶体生长等研究进展,从力学性能、水化热及体积稳定性角度进一步综述了改性钢渣对水泥基胶凝材料水化特性影响机制,指出了现阶段微生物-碳化技术在钢渣改性研究中存在的不足,为实现钢渣低污染、高质化利用提供有益参考.
Abstract
Microbially induced calcium carbonate precipitation(MICP)is a novel environmentally friendly treatment technology,which shows broad prospects in solid waste treatment and utilization due to its unique mineralization and bio-enzymatic catalysis mechanism.Based on the hydration characteristics of steel slag,this paper explores the influence of carbonation conditions and enzymatic characteristics on carbonate nucleation,analyzes and summarizes the research progress on the reaction mechanism of MICP and carbonation,phase evolution of steel slag in bio-carbonation modification,carbonate nucleation,and crystal growth.Furthermore,from the perspectives of mechanical properties,hydration heat,and volume stability,the impact mechanism of modified steel slag on the hydration characteristics of cement-based cementitious materials is further reviewed.The paper points out the current deficiencies in microorganism-carbonation technology in the research of steel slag modification,providing valuable references for achieving low-pollution and high-quality utilization of steel slag.
关键词
钢渣/水化特性/微生物/催化酶/碳酸盐沉淀/碳化反应/成核效应Key words
steel slag/hydration characteristic/microorganism/catalyzing enzyme/carbonate precipitation/carbonation reaction/nucleation effect引用本文复制引用
出版年
2025
NETL
NSTL
万方数据