|
|
|
| Cracking Process Analysis of Concrete Cover Caused by Non-uniform Corrosion |
Xudong CHENG1( ),Lianfang SUN1,Zhifeng CAO1,Xingji ZHU2 |
1. College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580, China
2. Department of Civil, Environmental & Architectural Engineering, Korea University, Seoul 136-701, Republic of Korea |
|
|
|
|
Abstract A model was proposed to describe the swell-cracking of concrete induced by non-uniform rusting of re-bar versus time by consideration of regulations of the re-bar rusting process and the non-uniform distribution of the rust products on the re-bar. Then the distribution of displacement of the non-uniform rust-swelling of concrete at different moment could be deduced through the proposed model by using time discrete method. Thereafter, from the rust-swelling displacement, the ABAQUS swelling finite element model could deduce the overall cracking process. By comparison between the two overall swell-cracking processes induced by uniform and non-uniform rust induced swellings respectively, it follows that there exists large difference between the two cracking processes, while a prediction of much higher crack propagation rate by the later one is fairly well agree with the situation of engineering practice. Therefore, the model of non-uniform rust-swelling of concrete induced by non-uniform rusting of re-bar shows good prospect to be adopted in the study of corrosion behavior of steel re-bar reinforced concrete.
|
|
|
| [1] | Oh B H, Kim K H, Jang B S. Critical corrosion amounts to cause cracking of reinforced concrete structures[J]. ACI Mater. J., 2009, 106(4): 333 | | [2] | Wu Q, Yuan Y S, Zhang F J. Review of the research on structure behavior's deterioration based on corroded reinforced concrete (I)[J]. Sichuan Build. Sci., 2007, 33(6): 9 (吴庆, 袁迎曙, 张风杰. 基于钢筋锈蚀的混凝土结构性能退化研究综述(I)[J]. 四川建筑科学研究, 2007, 33(6): 9) | | [3] | Zhang X G, Xing F, Li D W, et al. Summary on corrosion- induced cracking of reinforced concrete and its reverse effect on corrosion under aggressive environments[J]. Concrete, 2010, (3): 39 (张小刚, 邢峰, 李大望等. 钢筋混凝土锈胀开裂及对腐蚀反作用影响研究[J]. 混凝土, 2010, (3): 39) | | [4] | Bazant Z P. Physical model for steel corrosion in sea concrete structures applications[J]. J. Struct. Div., 1979, 105(6): 1155 | | [5] | Guzman S, Galvez J C, Sancho J M. Cover cracking of reinforced concrete due to rebar corrosion induced by chloride penetration[J]. Cem. Concr. Res., 2011, 41(8): 893 | | [6] | Maaddawy T E, Soudki K. A model for prediction of time from corrosion initiation to corrosion cracking[J]. Cem. Concr. Compos., 2007, 29(3): 168 | | [7] | Lu C, Jin W, Liu R. Reinforcement corrosion-induced cover cracking and its time prediction for reinforced concrete structures[J]. Corros. Sci., 2011, 53: 1337 | | [8] | Zhao Y X, Hu B Y, Yu J, et al. Non-uniform distribution of rust layer around steel bar in concrete[J]. Corros. Sci., 2011, 53(12): 4300 | | [9] | Yuan Y S, Ji Y S, Mu Y J. Propagation and model of distribution for corrosion of steel bars in concrete[J]. China Civil Eng. J., 2007, 40(7): 5 (袁迎曙, 姬永生, 牟艳君. 混凝土内钢筋锈蚀层发展和锈蚀量分布模型研究[J]. 土木工程学报, 2007, 40(7): 5) | | [10] | Geng O. Reinforcement Corrosion and Degradation Rate of Concrete Members [M]. Beijing: China Railway Publishing House, 2010: 65 (耿欧. 混凝土结构的钢筋锈蚀与退化速率[M]. 北京: 中国铁道出版社, 2010: 65) | | [11] | Zhao Y X, Yu J, Jin W L. Damage analysis and cracking model of reinforced concrete structures with rebar corrosion[J]. Corros. Sci.2011, 53(10): 3388 | | null | | | [12] | Keivan K, Hossein M S. Prediction of the penetrated rust into the microcracks of concrete caused by reinforcement corrosion[J]. Appl. Math. Model., 2011, 35: 2529 | | [13] | Leon C, Dimitri V V. Prediction of corrosion-induced cover cracking in reinforced concrete structures[J]. Constr. Build. Mater., 2011, 25(4): 1854 | | [14] | Wu Q. Reinforced concrete members performance degradation prediction model based on reinforcement corrosion [D]. Xuzhou: China University of Mining and Technology, 2008 (吴庆. 基于钢筋锈蚀的混凝土结构性能退化预计模型[D]. 徐州: 中国矿业大学, 2008) | | [15] | Zhao Y X, Karimi A R, Hong S W, et al. Comparison of uniform and non-uniform corrosion induced damage in reinforced concrete based on a Gaussian description of the corrosion layer[J]. Corros. Sci., 2011, 53(9): 2803 | | [16] | Zhao Y X, Jin W L. Analysis on the cracking of concrete cover due to rebar corrosion[J]. J. Hydraul. Eng., 2005, 36(8): 939 (赵羽习, 金伟良. 钢筋锈蚀导致混凝土结构保护层胀裂的全过程分析[J]. 水利学报, 2005, 36(8): 939) | | [17] | Geng O. Prediction models of steel bar corrosion rate in concrete member [D]. Xuzhou: China University of Mining and Technology, 2008 (耿欧. 混凝土结构中钢筋锈蚀速率预计模型研究 [D]. 徐州: 中国矿业大学, 2008) | | [18] | Wei B M. Metallic Corrosion Theories and Applications[M]. Beijing: Chemical Industry Press, 1984 (魏宝明. 金属腐蚀理论及应用[M]. 北京: 化学工业出版社, 1984) | | [19] | Liang C H. The Introduction of Metal Corrosion[M]. Beijing: China Machine Press, 1999 (梁成浩. 金属腐蚀学导论[M]. 北京: 机械工业出版社, 1999) | | [20] | Mu Y J. Reinforcement corrosion dilation effect and forecasting model in concrete [D]. Xuzhou: China University of Mining and Technology, 2006 (牟艳君. 混凝土内钢筋锈胀效应和预测模型研究 [D]. 徐州: 中国矿业大学, 2006) | | [21] | Song X B, Liu X L. Experiment research on corrosion of reinforcement in concrete through cathode-to-anode area ratio[J]. ACI Mater. J., 2000, 97(2): 148 | | [22] | Song X B. Corrosion of steel in concrete [D]. Beijing: Tsinghua University, 1999 (宋小冰. 混凝土中钢筋的腐蚀 [D]. 北京: 清华大学, 1999) | | [23] | Ji Y S. Correlation of reinforced concrete degradation processes in natural and artificial climate environment [D]. Xuzhou: China University of Mining and Technology, 2007 (姬永生. 自然与人工气候环境下钢筋混凝土退化过程的相关性研究 [D]. 徐州: 中国矿业大学, 2007) | | [24] | Kapilesh B, Ghosh A K, Yasuhiro M, et al. Modeling of time to corrosion-induced cover cracking in reinforced concrete structures[J]. Cem. Concr. Res., 2005, 35: 2203 |
|
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
