为研究早龄期玄武岩纤维自密实混凝土的耐碱腐蚀性能,对养护龄期分别为3 d和14 d的纤维混凝土试件进行了不同程度的腐蚀并测定了其抗压强度和腐蚀系数K,结果表明:碱溶液对早龄期自密实混凝土的强度起到了抑制作用,而掺入一定量的玄武岩纤维能改善早龄期自密实混凝土的耐碱性能. In order to study the alkali resistance of basalt fiber self-compacting concrete of early age, the fiber concrete specimens aged at 3 days and 14 days of curing age were respectively subjected to different degrees of corrosion and their compressive strength and corrosion coefficient K were measured. The results show that the alkali solution can restrain the strength of the self-compacting concrete in early age, while adding a certain amount of basalt fiber can improve the alkali resistance of the early-age self-compacting concrete.