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《工程(英文)》 >> 2023年 第20卷 第1期 doi: 10.1016/j.eng.2021.07.026

碱激发矿渣混凝土的水化特性及微观结构研究进展

a School of Civil Engineering, Xi'an university of Architecture and Technology, Xi'an 710055, China
b State Key Laboratory of Green Building in Western China, Xi'an university of Architecture and Technology, Xi'an 710055, China
c School of Civil Engineering, Central South University, Changsha 410075, China

收稿日期: 2021-01-14 修回日期: 2021-05-31 录用日期: 2021-07-28 发布日期: 2021-12-10

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摘要

碱激发矿渣混凝土(alkali-activated slag concrete, AASC)是一种新型的绿色建材,与普通硅酸盐混凝土相比,制备AASC所产生的CO2仅为普通硅酸盐混凝土(ordinary Portland cement concrete, OPCC)的1/5;另外,AASC促进了矿渣等废弃物的再利用,节约了资源,扩大了矿渣的使用范围。本文根据AASC的相关研究,分析总结了AASC的水化特性以及界面过渡区、孔结构等微观结构的研究进展。讨论了矿渣成分、碱激发剂种类及其用量、养护条件对AASC的水化特性和微观结构的影响。目前关于AASC微观结构的研究成果相对较少,相关结论还未完全统一,而且,AASC的发展还存在很多制约因素(如矿渣原料成分复杂、收缩变形较大、流动性差等),因此,还需要进一步的深入研究。

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