摘要
通过钢纤维混凝土在生活污水-干湿循环和工业废水-干湿循环耦合作用下的试验,研究了钢纤维混凝土耐污水腐蚀性能,并以抗压强度、抗折强度、抗压腐蚀系数、抗折腐蚀系数表述分析试验成果.结果表明:提高腐蚀液浓度、缩小试件尺寸和干湿循环可以有效提高耐久性试验效率;污水-干湿循环对钢纤维混凝土的腐蚀程度与试验龄期呈非线性关系;钢纤维体积分数越大,其抗污水-干湿循环腐蚀性能越好;工业废水-干湿循环对钢纤维混凝土试件的腐蚀程度强于生活污水-干湿循环;抗压腐蚀系数和抗折腐蚀系数能够更加精确地表述耐久性试验结果.
The purpose of this article was to study the corrosion behaviors of Steel Fiber Reinforced Concrete （SFRC） under the cou- pling effect of wastewater and wetting-drying cycle by tests from the perspective of compressive strength, flexural strength, corrosion co- efficient of compressive strength, corrosion coefficient of flexural strength. Test results showed that durability test efficiency could be improved by increasing solution concentration, decreasing the specimen size and the wetting-drying cycle ; the relationship between cor- rosion extent and test age was nonlinear under the coupling effect of wastewater and wetting-drying cycle; the bigger steel fiber volume fraction, the better SFRC resisted corrosion; the corrosion extent to SFRC was stronger, industrial wastewater than domestic sewage; the test results could be summarized exactly with corrosion coefficient of compressive strength and corrosion coefficient of flexural strength.
出处
《华北水利水电学院学报》
2013年第1期11-15,共5页
North China Institute of Water Conservancy and Hydroelectric Power
基金
河南省教育厅自然科学基金项目(2008A430015)
河南省高校科技创新人才支持计划资助(2008HASTIT027)
关键词
钢纤维混凝土
污水
干湿循环
腐蚀
抗压腐蚀系数
抗折腐蚀系数
Steel Fiber Reinforced Concrete（SFRC）
wastewater
wetting-drying cycle
corrosion
corrosion coefficient of compres- sive strength
corrosion coefficient of flexural strength
