JZUS - Journal of Zhejiang University SCIENCE

Journal of Zhejiang University SCIENCE A 2014 Vol.15 No.3 P.197-207

Calculation of corrosion rate for reinforced concrete beams based on corrosive crack width*

Author(s): Feng Wu^1,2, Jing-hai Gong¹, Zhang Zhang²
Affiliation(s): 1. Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; more
Corresponding email(s): powernovel@163.com
Key Words: Corrosive crack width, Non-uniform corrosion, Corrosion rate, Electrolyte accelerated corrosion test, Reinforced cubic beams

Share this article to： More <<< Previous Article \|Next Article >>>

Feng Wu, Jing-hai Gong, Zhang Zhang. Calculation of corrosion rate for reinforced concrete beams based on corrosive crack width[J]. Journal of Zhejiang University Science A, 2014, 15(3): 197-207.

@article{title="Calculation of corrosion rate for reinforced concrete beams based on corrosive crack width",
author="Feng Wu, Jing-hai Gong, Zhang Zhang",
journal="Journal of Zhejiang University Science A",
volume="15",
number="3",
pages="197-207",
year="2014",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1300280"
}

%0 Journal Article
%T Calculation of corrosion rate for reinforced concrete beams based on corrosive crack width
%A Feng Wu
%A Jing-hai Gong
%A Zhang Zhang
%J Journal of Zhejiang University SCIENCE A
%V 15
%N 3
%P 197-207
%@ 1673-565X
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1300280

TY - JOUR
T1 - Calculation of corrosion rate for reinforced concrete beams based on corrosive crack width
A1 - Feng Wu
A1 - Jing-hai Gong
A1 - Zhang Zhang
J0 - Journal of Zhejiang University Science A
VL - 15
IS - 3
SP - 197
EP - 207
%@ 1673-565X
Y1 - 2014
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1300280

Abstract
Chinese Summary
Academic Network
Reviewer Comment

Abstract: This paper deals with a correction method for corrosive crack width caused by non-uniform corrosion. Considering the corrosion cracking characteristics of a reinforced concrete structure, a correction model of corrosive crack width involving the mutual impacts between adjacent measuring points is established. The calculation model for steel bar corrosion rate for single point is obtained through quantitative analysis and accelerated corrosion tests on more than 70 reinforced cubic members. Two methods are suggested by combining two models, the correction and the corrosion calculation ones. electrolyte accelerated corrosion tests on seven beams are carried out to verify these methods. The experimental results show that the ratio between the maximum corrosion rate by the indirect method and the measured average value ranges from 1.4 to 2.4, and the indirect method is shown to be an effective method for calculating the maximum corrosion rate.

钢筋混凝土梁基于锈胀裂缝的锈蚀率计算

研究目的：为了解决不均匀锈蚀情况下钢筋锈蚀率的计算问题，实现锈胀开裂构件的锈蚀率无损检测，采用理论分析和试验研究相结合的方法，建立锈蚀梁钢筋最大锈蚀率的计算模型。
创新要点：考虑了邻近位置混凝土开裂的影响，基于理论分析建立了不同位置的锈胀裂缝宽度修正模型。
研究方法：首先通过理论分析建立考虑相邻测点相互影响的锈胀裂缝宽度修正模型，然后根据锈蚀物体积膨胀几何模型，建立基于锈胀裂缝宽度的锈蚀率计算公式，最后通过七根锈蚀梁的加速锈蚀试验验证了模型的准确性。
重要结论：根据对开裂后钢筋与锈蚀物膨胀体积的量化分析，锈胀裂缝宽度与钢筋锈蚀率近似呈线性变化。电解液加速腐蚀试验结果表明，提出的锈蚀率计算方法得到的最大锈蚀率与实际平均值的比值在1.4–2.4之间，与实际情况符合较好。

关键词：不均匀锈蚀；梁；锈胀裂缝宽度；锈蚀率

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

References

[1] Alonso, C., Andrade, C., Rodriguez, J., 1998. Factors controlling cracking of concrete affected reinforcement corrosion. Materials and Structures, 31(7):435-441.

[2] Andrade, C., Alonso, C., 2001. On-site measurements of corrosion rate of reinforcements. Construction and Building Materials, 15(2-3):141-145.

[3] ASTM G1-03, 2003. Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens. Annual Book of ASTM Standards, 03-02:17-26.

[4] Capozucca, R., 2008. Detection of damage due to corrosion in prestressed RC beams by static and dynamic tests. Construction and Building Materials, 22(5):738-746.

[5] Chen, D., Mahadevan, S., 2008. Chloride-induced reinforcement corrosion and concrete cracking simulation. Cement and Concrete Composites, 30(3):227-238.

[6] Elsener, B., 2005. Corrosion rate of steel in concrete-measurements beyond the Tafel law. Corrosion Science, 47(12):3019-3033.

[7] Hansen, E.J., Saouma, V.E., 1999. Numerical simulation of reinforced concrete deterioration: part II – steel corrosion and concrete cracking. ACI Materials Journal, 96(3):331-337.

[8] Hoseini, M., Bindiganavile, V., Banthia, N., 2009. The effect of mechanical stress on permeability of concrete: a review. Cement and Concrete Composites, 31(4):213-220.

[9] Kumiko, S., Ssdhir, M., Kenichi, M., 1993. Corrosion products of reinforcing bars embedded in concrete. Corrosion Science, 35(5-8):1543-1549.

[10] Malumbela, G., Alexander, M., Pilate, M., 2010. Interaction between corrosion crack width and steel loss in RC beams corroded under load. Cement and Concrete Research, 40(9):1419-1428.

[11] Montemor, M.F., Simões, A.M.P., Ferreira, M.G.S., 2003. Chloride-induced corrosion on reinforcing steel: from the fundamentals to the monitoring techniques. Cement and Concrete Composites, 25(4-5):491-502.

[12] Pantazopoulou, S.J., Papoulia, K.D., 2001. Modeling cover-cracking due to reinforcement corrosion in RC structures. Journal of Engineering Mechanics, 127(4):342-351.

[13] Qing, L.C., Melchers, R.E., 2005. Time-dependent reliability analysis of corrosion-induced concrete cracking. ACI Structure Journal, 102(4):543-549.

[14] Rhazi, J., Laurens, S., Ballivy, G., 2000. Insights on the GPR non destructive testing method of bridge decks. , Special Session on Non Destructive Detection of Corrosion in Reinforced Concrete, ACI Meeting, Toronto, Canada, :

[15] Thoft-Christensen, P., 2000. Modeling of the deterioration of reinforced concrete structures. , Proceedings of IFIP Conference on Reliability and Optimization of Structural Systems, Ann Arbor, Michigan, USA, 15-16. :15-16.

[16] Val, D.V., Chernin, L., Stewart, M.G., 2009. Experimental and numerical investigation of corrosion-induced cover cracking in reinforced concrete structures. Journal of Structural Engineering, 135(4):376-385.

[17] Vidal, T., Castel, A., Francois, R., 2004. Analyzing crack width to predict corrosion in reinforced concrete. Cement and Concrete Research, 34(1):165-174.

[18] Zhang, R., Castel, A., Franois, R., 2010. Concrete cover cracking with reinforcement corrosion of RC beam during chloride-induced corrosion process. Cement and Concrete Research, 40(3):415-425.

Similar articles

- Go to

钢筋混凝土梁基于锈胀裂缝的锈蚀率计算

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

References