河北水利电力学院学报2025，Vol.35Issue(4)：40-45,6.DOI:10.16046/j.cnki.issn2096-5680.2025.04.007
纤维增强海水海砂混凝土抗侵蚀性能研究
Study on Erosion Resistance of Fiber Reinforced Seawater Sea and Sand Concrete
摘要
Abstract
Fiber-reinforced concrete was prepared using seawater and sea sand,and the erosion resist-ance of concrete under freeze-thaw cycles coupled with sulfate and its mechanism were investigated using concrete prepared from ordinary seawater and sea sand as a comparison.Salt freezing resistance was as-sessed by concrete appearance and morphology,compressive strength,and mass loss rate and micro-mor-phological features to obtain the optimum fiber mixing ratio.The results showed that the appropriate a-mount of fiber could improve the compressive strength of seawater and sea sand concrete,reduce the mass loss,and effectively improve the salt-freeze corrosion resistance of concrete.In the 50 coupling tests,the combination of 0.1%polypropylene fiber and 0.2%basalt fiber had the best effect.At this time,the com-pressive strength was 13.3%higher than that of ordinary seawater and sea sand concrete,and the mass loss rate was 22.4%lower than that of ordinary seawater and sea sand concrete,which made the salt-freeze erosion resistance of the seawater and sea sand concrete reach the best level.关键词
海水海砂混凝土/硫酸盐侵蚀/冻融循环/纤维增强/微观机理Key words
seawater and sea sand concrete/sulfate erosion/freeze-thaw cycle/fiber reinforcement/microscopic mechanism分类
建筑与水利引用本文复制引用
于建军,赵英键,耿建暖,黄学开..纤维增强海水海砂混凝土抗侵蚀性能研究[J].河北水利电力学院学报,2025,35(4):40-45,6.基金项目
教育部产学合作项目(202102600009) （202102600009）
河北科技大学博士基金项目(20190902) （20190902）
