采用长期浸泡的试验方法研究聚丙烯纤维体积掺量为0.06%、0.09%、0.12%的自密实混凝土,玄武岩纤维体积掺量为0.05%、0.10%、0.12%的自密实混凝土及未掺纤维的普通高强自密实混凝土七组试件在标准养护28d后继续在5%溶液中腐蚀30d、60d、90d、120d的腐蚀抗压强度、腐蚀劈裂抗拉强度及腐蚀抗压系数。试验研究结果表明,纤维的掺入有效地改善了自密实混凝土的抗硫酸盐腐蚀性。 The self-compacting concrete with polypropylene fiber volume content of 0.06%, 0.09% and 0.12% was studied by long-term immersion test. The self-compacting concrete with basalt fiber volume content of 0.05%, 0.10% and 0.12% Seven groups of specimens of ordinary high-strength self-compacting concrete continued to corrode in 5% solution for 28d, 60d, 90d and 120d, respectively. The corrosion compressive strength, corrosion splitting tensile strength and corrosion resistance coefficient were also observed. The experimental results show that the incorporation of fibers effectively improves the sulfate resistance of self-compacting concrete.