中国资源综合利用2026，Vol.44Issue(6)：1-3,3.DOI:10.3969/j.issn.1008-9500.2026.06.001
粉煤灰沙基灰砖碳化养护力学性能与长期承载耐久性研究
Study on Mechanical Properties and Long-Term Bearing Durability of Fly Ash-Aeolian Sand Lime Bricks Under Carbonation Curing
摘要
Abstract
To improve the utilization rate of aeolian sand in arid regions,aeolian sand from the Kumtag Desert and ClassⅡ fly ash were used as aggregates,while quicklime and gypsum served as cementitious materials.Fly ash-aeolian sand lime bricks were prepared under high-pressure CO2 curing.The slurry concentration was fixed at 79%,with a sand-to-ash ratio of 13∶6 and an ash-to-binder ratio of 14∶4.The effects of CO2 pressure(0.2～1.0 MPa)and curing age(3～28 d)on compressive strength were investigated,and creep simulation was conducted based on the optimal parameters(0.6 MPa,14 d).The results indicate that the compressive strength increases rapidly at early ages and then gradually stabilizes;at 0.6 MPa,the 28 d compressive strength reaches 9.8 MPa.The bricks are suitable for filling in shallow and moderately shallow goafs,providing both solid waste resource utilization and CO2 sequestration.关键词
粉煤灰沙基灰砖/碳化养护/抗压强度/蠕变/承载耐久性Key words
fly ash-aeolian sand lime brick/carbonation curing/compressive strength/creep/bearing durability分类
建筑与水利引用本文复制引用
苏慧,张玉雷,王伟,刘起..粉煤灰沙基灰砖碳化养护力学性能与长期承载耐久性研究[J].中国资源综合利用,2026,44(6):1-3,3.基金项目
新疆自治区重点研发项目课题(2025B01005). （2025B01005）
