硅酸盐通报2024，Vol.43Issue(11)：4027-4035,9.
预养护与碳化时间对泡沫混凝土碳化效果的影响及分析
Influences of Preconditioning and Carbonization Time on Carbonization Effect of Foam Concrete and Analysis
摘要
Abstract
Carbon mineralization technology is considered one of the most direct and effective approaches for CO2 sequestration and addressing the issue of greenhouse effect.Stainless steel slag,primarily composed of γ-dicalcium silicate(γ-C2 S),possesses significant potential for carbonation due to its composition.In this study,80%(mass fraction)stainless steel slag and granulated blast furnace slag powder were used as main raw materials to prepare A12 dry density grade foam concrete.The effects of preconditioning time and carbonation time on the compressive strength and carbon fixation ratio of foam concrete were investigated in a carbonation environment of 0.4 MPa and60℃.The results show that the best preconditioning time is 2 d.The compressive strength of foamed concrete with preconditioning 1 and 2 d reaches the peak after carbonization for 3 d.The compressive strength of foamed concrete with preconditioning 2 d is 51.19%higher than that of preconditioning 1 d.When carbonization for 3 d,the carbon fixation ratio of foamed concrete with preconditioning for1 and2 d is9.94%and12.10%,respectively.In this study,it is of great significance to realize the carbon mineralization process by using industrial solid waste in a simple carbonization environment,which not only consumes a large amount of solid waste,but also stores carbon dioxide.关键词
泡沫混凝土/不锈钢渣/预养护时间/碳化时间/抗压强度/固碳率Key words
foam concrete/stainless steel slag/preconditioning time/carbonization time/compressive strength/carbon fixation ratio分类
建筑与水利引用本文复制引用
刘宇航,罗平,蒋杉平,刘骥,敬代焱,刘荣进..预养护与碳化时间对泡沫混凝土碳化效果的影响及分析[J].硅酸盐通报,2024,43(11):4027-4035,9.基金项目
有色金属及材料加工新技术教育部重点实验室主任基金(22AA-6) （22AA-6）
