钢渣在建筑材料中的碳化应用研究进展  

Carbonization of Steel Slag in Construction Materials Research Progress

作　　者：谢辉 刘灿 向云燕 代欣 帅海乐 XIE Hui;LIU Can;XIANG Yunyan;DAI Xin;SHUAI Haile(Guizhou Construction Science Research&Design Institute Co.,Ltd.Of CSCEC,Guiyang 550000,China;China Construction Fourth Engineering Division Co.,Ltd.,Guangzhou 510000,China)

机构地区：[1]贵州中建建筑科研设计院有限公司,贵州贵阳550000 [2]中国建筑第四工程局有限公司,广东广州510000

出　　处：《绿色建筑》2024年第4期186-190,共5页Green Building

基　　金：中国建筑土木工程材料重点实验室(工业固废资源化利用)(CSCEC-PT-002);“碳中和背景下固碳钢渣粉资源化利用技术研究”(CSCEC4B-2022-KTA-5、CSCEC-2022-Z-32)。

摘　　要：随着全球气候变暖日益严重,对温室气体的捕集、利用与封存技术的研究愈发受到各方面的重视与关注。与此同时,作为我国典型大宗工业固废的钢渣,其累计堆存量大而综合利用率低,严重制约钢铁企业的健康发展,且环境污染问题十分突出。近年来,国内外许多专家学者对钢渣用于制备建筑材料进行了大量研究,发现钢渣在富二氧化碳(CO_(2))环境中具有良好的碳化反应活性,在进行碳化反应之后体积稳定性与力学性能均得到显著优化,可直接用作建材原料,故而碳化钢渣制备建筑材料将会是钢渣资源化利用的一种理想新途径,具有良好的发展前景。从钢渣的材料特性、碳化原理及固碳方法出发,对碳化钢渣在建筑材料中的应用与研究进展进行了综述,分析探讨了钢渣及其制品的碳化效用、固碳效率与影响因素,并针对其研究现状存在的问题指出了研究方向。As global warming becomes more and more serious,the research on greenhouse gas capture,utilization and sequestration technology is getting more and more attention and concern from all sides.At the same time,as a typical bulk industrial solid waste in China,steel slag has a large cumulative stockpile and a low comprehensive utilization rate,which seriously restricts the healthy development of iron and steel enterprises,and the environmental pollution problem is very prominent.In recent years,many experts and scholars at home and abroad on the preparation of steel slag used in the preparation of building materials for a large number of studies,found that steel slag in the CO2-rich environment has a good carbonation reaction activity,after the carbonation reaction volume stability and mechanical properties have been significantly optimized,and can be used as a raw material for building materials,so the carbonization of steel slag preparation of building materials will be an ideal way to utilize the resources of steel slag,and has a good ddevelopment prospects.From the material properties of steel slag,carbonization principle and carbon sequestration method,the application and research progress of carbonized steel slag in building materials are reviewed,the carbonization utility of steel slag and its products,carbon sequestration efficiency and influencing factors are analyzed and discussed,and the research direction is further analyzed and pointed out in view of the main problems in the research status quo.

关 键 词：钢渣 二氧化碳 碳化反应 建筑材料 碳化效用 

分 类 号：X757[环境科学与工程—环境工程]