玄武岩纤维改善海工混凝土工作性能和抗氯离子渗透性能研究

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【中图分类号】：TU528.572 【文献标志码】：A 【文章编号】：1008-3197（2025）03-67-05

【DOI编码】：10.3969/j.issn.1008-3197.2025.03.016

Study on the Improvement of performance and Chloride Ion Penetration Resistance of Marine Concrete by Basalt Fiber

WANG Zhong²，WUQiuqi³，DUYandong²，CHENLei²，HUFeng1，LIJiawei1* （1.SchoolofCivildrbEinucnUesityanna;2..eeEe of CCFirstHighwayEngineingCotd.，BeiigCina;3JagsuPortandSpingIvesntDevelopentCodjing ，China）

【Abstract】 ∵ Inorder to explore the influence of basalt fiber on the performance and chloride ion penetration resistance of marine concrete and its mechanism，the basalt fiber withlengthof12 mm，18 mm and24 mm was mixed into marine concrete with 0.1% ，0.15 % ， 0.2% ， 0.25% and 0.3 % volume content respectively by volume mixing method，the mechanism of diferent fiber variables in concrete was analyzed by the corresponding characterization characteristics of working performance，and the influence of corresponding fiber variables on the electricflux of concrete was studied.Theresults showed thatthe fiber content is the main factor affecting the performanceand chloride ion resistance ofconcrete，and the fiber length was the secondary factor affecting thechloride ionpenetrationresistanceofconcrete.With the increaseoffiberlength，the electric fluxof concrete shows a downward trend asa whole，and the chloride ionresistance ofconcrete was proportional to the fiber length.

【Key words】：basalt fiber;marine concrete;chloride ion penetration resistance

氯离子侵蚀是导致钢筋锈蚀并引起海工混凝土结构破坏的主要原因，而钢筋锈蚀速度与混凝土的渗透通道有着明显的对应关系；因此，海工类腐蚀环境下的混凝土结构须采用抗渗性良好的建筑材料。（剩余7893字）