典型文献
Deterioration Mechanism of Concrete Subjected to Acid Rain Attack—An Experimental and Modeling Approach
文献摘要：
The experimental and modeling approaches were taken to study the deterioration mechanism of concrete under acid rain attack.Concrete specimens were prepared and exposed to the simulated acid rain environment.The neutralization depth of concrete was measured,and the mineralogical composition and microstructure of concrete were analyzed using X-ray diffraction(XRD)and scanning electron microscope(SEM).The experimental results show that the degradation of concrete increases with the corrosion time and the decrease in pH value of acidic solution from 3.5 to 1.5.Concrete was corroded by H+and SO42-in acid rain,producing gypsum and leading to the neutralization of concrete.The acid rain exposure also resulted in the decomposition of hydration products of cement,such as C-S-H and ettringite,forming the main corrosion products of gypsum and SiO2nH2O.Based on the second Fick diffusion law,a model was developed to describe the deterioration mechanism of concrete exposed to acid rain mathematically,coupling the diffusion of reactive ions and the corrosion reaction.The simulation results and the experimental results were compared and discussed.
文献关键词：
中图分类号：
作者姓名：
LI Beixing;YUAN Xiaolu;ZHANG Yaming;ZHU Wenkai
作者机构：
State Key Laboratory of Silicate Materials for Architecture,Wuhan University of Technology,Wuhan 430070,China;Key Laboratory of Geological Hazards on Three Gorges Reservoir Area,Ministry of Education,China Three Gorges University,Yichang 443002,China
文献出处：
引用格式：
[1]LI Beixing;YUAN Xiaolu;ZHANG Yaming;ZHU Wenkai-.Deterioration Mechanism of Concrete Subjected to Acid Rain Attack—An Experimental and Modeling Approach)[J].武汉理工大学学报（材料科学版）（英文版）,2022(05):849-854
A类：
SiO2nH2O
B类：
Deterioration,Mechanism,Concrete,Subjected,Acid,Rain,Attack,An,Experimental,Modeling,Approach,experimental,modeling,approaches,were,taken,study,deterioration,mechanism,concrete,under,rain,attack,specimens,prepared,exposed,simulated,environment,neutralization,depth,was,measured,mineralogical,microstructure,analyzed,using,ray,diffraction,scanning,electron,microscope,results,show,that,degradation,increases,corrosion,decrease,value,acidic,solution,from,corroded,by,H+and,SO42,producing,gypsum,leading,exposure,also,resulted,decomposition,hydration,products,cement,such,ettringite,forming,main,Based,second,Fick,diffusion,law,developed,describe,mathematically,coupling,reactive,ions,reaction,simulation,compared,discussed
AB值：
0.578812
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
