Computers and Concrete

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Testing of the permeability of concrete box beam with ion transport method in service

  • Wang, Jia Chun (Department of Civil Engineering, Xiamen University of technology)
  • Received : 2014.05.03
  • Accepted : 2015.01.12
  • Published : 2015.03.25
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Abstract

The permeability is the most direct indicator to reflect the durability of concrete, and the testing methods based on external electric field can be used to evaluate concrete permeability rapidly. This study aims to use an experiment method to accurately predict the permeability of concrete box beam during service. The ion migration experiments and concrete surface resistivity are measured to evaluate permeability of five concrete box beams, and the relations between these results in service concrete and electric flux after 6 hours by ASTM C1202 in the laboratory are analyzed. The chloride diffusion coefficient of concrete, concrete surface resistivity and concrete 6 hours charge have good correlation relationship, which denote that the chloride diffusion coefficient and the surface resistivity of concrete are effective for evaluating the durability of concrete structures. The chloride diffusion coefficient of concrete is directly evaluated permeability of concrete box beam in service and may be used to predict the service life, which is fit to engineering applications and the concrete box beam is non-destructive. The concrete surface resistivity is easier available than the chloride diffusion coefficient, but it is directly not used to calculate the service life. Therefore the mathematical relation of the concrete surface resistivity and the concrete chloride diffusion coefficient need to be found, which the service life of reinforced concrete is obtained by the concrete surface resistivity.

Keywords

Acknowledgement

Supported by : Natural Science Foundation

References

  1. Andrade, C. (1993), "Calculation of chloride diffusion coefficients in concrete from ionic migration measurements", Cement Concrete Res., 23(3), 724-742. https://doi.org/10.1016/0008-8846(93)90023-3
  2. Angst, U., Elsener, B., Larsen, C.K. and Vennesland, O. (2009), "Critical chloride content in reinforced concrete a review", Cement Concrete Res., 39(12), 1122-1138. https://doi.org/10.1016/j.cemconres.2009.08.006
  3. ASTM (2010), "C1202 Standard test method for electrical indication of concrete's ability to resist chloride ion penetration", Annual book of ASTM Standards, Philadelphia, PA.
  4. Basheer, P.A.M., Andrews, R.J., Robinson, D.J. and Long, A.E. (2005), "Permit ion migration test for measuring the chloride ion transport of concrete on site", NDT & E Int., 38(3), 219-229. https://doi.org/10.1016/j.ndteint.2004.06.013
  5. Desouza, S.J., Hooton, R.D. and Bickley, J.A. (1998), "A field test for evaluating high performance concrete cover quality", Can. J. Civil Eng.,25(3),551-556. https://doi.org/10.1139/l97-110
  6. Florida department of transportation. (2004), "FM 5-578 Florida method of test for concrete resistivity as an electrical indicator of its permeability", FDOT Designation.
  7. Ghafoori, N., Najimi, M., Sobhan, J. and Mohammad, A. (2013), "Predicting rapid chloride permeability of self consolidating concrete: a comparative study on statistical and neural network models", Constr. Build Mater., 44, 381-390. https://doi.org/10.1016/j.conbuildmat.2013.03.039
  8. Guzman, S., Galvez, J.C. and Sancho, J.M. (2011), "Cover cracking of reinforced concrete due to rebar corrosion induced by chloride penetration", Cement Concrete Res., 41(8), 893-902. https://doi.org/10.1016/j.cemconres.2011.04.008
  9. Homwuttiwong, S., Jaturapitakkul, C. and Chindaprasirt, P. (2012), "Permeability and abrasion resistance of concretes containing high volume fine fly ash and palm oil fuel ash", Comput. Concr., 10( 4),349-360. https://doi.org/10.12989/cac.2012.10.4.349
  10. Hong, K. and Hooton, R.D. (1999), "Effects of cyclic chloride exposure on penetration of concrete cover", Cement Concrete Res., 29(6), 1379-1386. https://doi.org/10.1016/S0008-8846(99)00073-3
  11. Kim Y.Y. and Kim, J.M. (2014), "Effect of cover depth, w/c ratio, and crack width on half cell potential in cracked concrete exposed to salt sprayed condition", Constr. Build. Mater., 54, 636-645. https://doi.org/10.1016/j.conbuildmat.2014.01.009
  12. Long, A.E., Henderson G.D. and Montgomery, F.R. (2001), "Why assess the properties of near surface concrete", Constr. Build. Mater., 15(1), 65-79. https://doi.org/10.1016/S0950-0618(00)00056-8
  13. Mcarter, W.J., Chrisp, T.M., Starrs, G., Basheer, P.A.M. and, Blewett, J. (2005),"Field monitoring of electrical conductivity of cover zone concrete", Cement Concrete Compos., 27(7-8), 809-817. https://doi.org/10.1016/j.cemconcomp.2005.03.008
  14. Meira, G.R., Andrade, Perdrix, M.C., Alonso, M.C., Borba, J.C. and Padilha, J.M. (2010), "Durability of concrete structures in marine atmosphere zones - The use of chloride deposition rate on the wet candle as an environmental indicator", Cement Concrete Compos., 32 (3),427-435. https://doi.org/10.1016/j.cemconcomp.2010.03.002
  15. Sajal, K.P., Subrata, C. and Sudhirkumar, V.B. (2014), "Chloride diffusion study in different types of concrete using finite element method (FEM)", Adv. Concr. Constr., 2(1), 39-56. https://doi.org/10.12989/acc2014.2.1.039
  16. Shin, K.J., Kim, J.S. and Lee, K.M. (2011), "Probability based durability design software for concrete structures subjected to chloride exposed environments", Comput. Concr., 8(5), 511-524. https://doi.org/10.12989/cac.2011.8.5.511
  17. Tang, L. (1996), "Electrically accelerated methods for determining chloride diffusivity in concrete current development", Mag. Concrete Res., 48(6), 173-179. https://doi.org/10.1680/macr.1996.48.176.173
  18. Wang, Q. and Yan, P.Y. (2011), "An explanation for the negative effect of elevated temperature at early ages on the late age strength of concrete", J. Mater. Sci., 46(22), 7279-7288. https://doi.org/10.1007/s10853-011-5689-z
  19. Wang, X.Y., Park, K.B. and Lee, H.S. (2012), "Modeling of chloride diffusion in a hydrating concrete incorporating silica fume", Comput. Concr., 10(5), 523-539. https://doi.org/10.12989/cac.2012.10.5.523
  20. Yang, J.B. and Yan, P.Y. (2009), "Modification of test process of permit ion migration test and its application to determinate effect of methods to improve chloride penetration resistance of cover concrete", J. Adv. Concrete Technol., 7(3),385-391. https://doi.org/10.3151/jact.7.385
  21. Yang, K. and Basheer, P.A.M.(2014), "Development of a new in situ test method to measure the air permeability of high performance concretes", NDT&E Int.,64(1),30-40. https://doi.org/10.1016/j.ndteint.2014.02.005

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