摘要
研究了新型水化响应纳米材料作为混凝土抗侵蚀抑制剂对混凝土毛细疏水、离子传输、硫酸盐腐蚀以及钢筋阻锈性能的影响。水化响应纳米材料可以在海工低渗透性混凝土基础上进一步降低混凝土吸水率78%,降低氯离子扩散系数44%,硫酸盐耐蚀系数提升41%,同时降低钢筋宏电池累计腐蚀电量90%,实现钢筋混凝土结构整体耐蚀性能的大幅提升。
The effect of new kind of hydration response nanomaterials,as concrete erosion inhibitor,on capillary hydrophobicity,ions transport,sulfate corrosion resistance for concrete and corrosion resistance for the corresponding reinforced steel was investigated.For a low-permeability marine concrete,the addition of hydration response nanomaterials can further reduce its water absorption rate by 78%,chloride ion diffusion coefficient by 44%and sulfate corrosion resistance coefficient by 41%,whilst the electric charge cumulation due to corrosion of the reinforced steel by 90%,thus greatly improving the overall corrosion resistance of reinforced concrete structures.
作者
朱哲
蔡景顺
洪锦祥
穆松
周霄骋
马麒
陈翠翠
ZHU Zhe;CAI Jingshun;HONG Jinxiang;MU Song;ZHOU Xiaocheng;MA Qi;CHEN Cuicui(State Key Laboratory of High Performance Civil Engineering Materials,Jiangsu Sobute New Materials Co.,Ltd.,Nanjing 211103,China)
出处
《中国腐蚀与防护学报》
CAS
CSCD
北大核心
2021年第5期732-736,共5页
Journal of Chinese Society For Corrosion and Protection
基金
国家重点研发计划(2017YFB0309904)
NSFC-山东联合基金(U1706222)
国家自然科学基金(51908254)
江苏省自然科学基金(BK20171111,BK20181127)
广东省重点领域研发计划(2019B111106002)
广东省重点工程研发项目(DG1-T02-2017和ZXGS-KJ-01)。
关键词
混凝土抗侵蚀抑制剂
钢筋锈蚀
毛细疏水
水化响应
纳米材料
concrete erosion inhibitor
corrosion of steel
capillary hydrophobic
response of cement hydration
nanomaterial
