Abstract
The electrodeposition method for rehabilitation of the cracked reinforced concrete, based on the electrochemical technique, was presented here. The aim of this study was to evaluate the influence of additive on the formation of electrodeposits in the concrete cracks. Cracked mortar specimens of size 40 mm×40 mm×160 mm were immersed in electrolyte solutions(ZnSO4, MgSO4), and a constant current was applied between the reinforced steel and the external electrode for 15 days. Rate of surface coating, rate of crack closure and rate of crack filling depth were measured and the appearance of electrodeposits in the cracks was observed. The experimental results demonstrate that, under the experimental conditions, rate of surface coating and crack filling depth increase, while rate of crack closure decreases as the percengtage of additive increases. In addition, the electrodeposits become more denser and the microstructure varies with additive content, while the compositions of electrodeposits do not change.
Similar content being viewed by others
References
Otsuki, N, Hisada M, Ryu J S, et al. Rehabilition of Concrete Cracks by Electrodeposition[J]. Concrete International, 1999, 21(3): 58–63
Otsuki N and Ryu JS. Use of Electrodeposition for Repair of Concrete with Shrinkage Cracks[J]. Materials in Civil Engineering, 2001, 13(2): 136–142
Ryu J S. An Experimental Study on the Repair of Concrete Crack by Electrochemical Technique[J]. Materials and Structures, 2001, 34(4): 433–437
Ryu J S. and Otsuki N. Crack Closure of Reinforced Con crete by Electrodeposition Technique[J]. Cement and Concrete Research, 2002, 32(1): 159–164
Chu Hongqiang, Jiang Linhua. Experimental Study on Electrodeposition Method for Repair of Concrete Cracks[J]. Journal of Hohai University(Natural Science), 2005, 33(3): 310–313 (in Chinese)
Jiang Linhua, Chu Hongqiang. Influence of Concrete Parameters on Electrodeposition Effect[J]. Advances in Science and Technology of Water Resources, 2005,25(2): 23–25 (in Chinese)
Chu Hongqiang, Jiang Linhua. Influence of Accessorial Electrode and Electrode Distance on Electrodeposition Effect[ J]. Journal of Building Materials, 2005, 8(4): 456–461 (in Chinese)
Chu Hongqiang, Jiang Linhua, Yang Biao. Application of Image Processing Method to Evaluation of Electrodeposition Effect[J]. Journal of Hohai University(Nature Science), 2005, 33(5):567–570 (in Chinese)
Chu Hongqiang, Jiang Linhua. Effect of Electrodeposition on BET Surface Area and Microstructure of Cement Mortar[ J]. Journal of Building Materials, 2006, 9(5): 627–632 (in Chinese)
Chu Hongqiang, Jiang Linhua. Study on Carbonation Resistance of Concrete with Crack after Electrodeposition[J]. Materials Review, 2006, 20(4): 145–147 (in Chinese)
Author information
Authors and Affiliations
Corresponding author
Additional information
Funded by the Research Funds for the Central Universities(No. 2010B07514) and the Opening Project of Key Laboratory of Coastal Disasters and Defence of Ministry of Education
Rights and permissions
About this article
Cite this article
Chu, H., Wang, P. Influence of additives on the formation of electrodeposits in the concrete cracks. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 26, 366–370 (2011). https://doi.org/10.1007/s11595-011-0231-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11595-011-0231-3