碱矿渣混凝土的干燥收缩研究进展探析

Analysis on Research progress on drying shrinkage of alkali-activated slag concrete

碱矿渣(AAS)混凝土采用矿渣和碱激发剂为原材料制备,其力学性能和耐久性能比普通硅酸盐混凝土更优异,被视为普通硅酸盐混凝土的有效替代品。然而,碱矿渣混凝土较高的干燥收缩率,限制了其更广泛的应用。因此,梳理国内外学者相关的研究成果,分析探讨碱矿渣混凝土的干燥收缩性能和减缩措施。在此基础上,提出研究展望,为碱矿渣混凝土的进一步研究与应用提供理论基础。

Alkali-activated slag(AAS)concrete is the concrete prepared by slag and alkali activation agent as raw materials.The mechanical properties and durability of AAS concrete are superior to those of ordinary portland concrete,and AAS concrete is regarded as an effective substitute for ordinary portland concrete.However,the high drying shrinkage of alkali-activated slag concrete limits its wider application.Therefore,this paper reviews the relevant research results from domestic and foreign scholars summarizing the drying shrinkage properties and shrinkage reduction measures of alkali-activated slag concrete.On this basis,research perspectives are presented to provide a theoretical basis for further research and application of alkali-activated slag concrete.