福州大学学报（自然科学版）2026，Vol.54Issue(1)：67-73,7.DOI:10.7631/issn.1000-2243.25025
表面活性剂对碱矿渣材料早期性能与氯离子固化的影响
Influence of surfactants on early-age performance and chloride immobilization of alkali-activated slag materials
摘要
Abstract
Three representative types of surfactants,i.e.,cationic,anionic,and nonionic,were employed to modify alkali-activated slag binders.The early-age properties of the specimens were systematically characterized.The regulation mechanism of different surfactants on the air bubble distri-bution,structure of the electrical double layer above hydrate surface,and chloride binding behavior in alkali-activated slag binders were deeply explored.The results demonstrate that surfactant incorporation effectively alters the flowability of alkali-activated slag binders,prolongs setting time,and mitigates autogenous shrinkage.Anionic or nonionic surfactants tend to introduce a substantial amount of over-sized air voids(diameter>560 μm),leading to a noticeable reduction in the compressive strength of al-kali-activated slag binders.In contrast,an appropriate dosage of cationic surfactants primarily induces the formation of fine microbubbles(diameter<18 μm),causing insignificant mechanical loss while sim-ultaneously enhancing both the physical adsorption and chemical binding of chloride ions through opti-mization of the electrical double layer structure.This study provides new insights into the regulation of early-age performance and the improvement of chloride resistance in alkali-activated materials.关键词
碱矿渣/表面活性剂/界面特性/早期性能/氯离子固化Key words
alkali-activated slag/surfactants/interface characteristics/early-age performance/chloride immobilization分类
建筑与水利引用本文复制引用
张勇,邹尤,吴奇发,尹键丽,杨政险..表面活性剂对碱矿渣材料早期性能与氯离子固化的影响[J].福州大学学报（自然科学版）,2026,54(1):67-73,7.基金项目
国家自然科学基金资助项目(52478241) （52478241）
福建省自然科学基金资助项目(2024J01264) （2024J01264）
中国博士后科学基金资助项目(2024M751270) （2024M751270）
