Computers and Concrete

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Equifield line simulation and ion migration prediction for concrete under 2-D electric field

  • Liu, Chih-Chien (Department of Civil Engineering, ROC Military Academy) ;
  • Kuo, Wen-Ten (Department of Civil Engineering, National Kaohsiung University of Applied Sciences) ;
  • Huang, Chun-Yao (Department of Civil Engineering, National Kaohsiung University of Applied Sciences)
  • Received : 2012.10.17
  • Accepted : 2013.05.11
  • Published : 2013.10.25
⟨ Previous Next ⟩

Abstract

This study attempted to find a proper method applicable to simulating practical equifield lines of two-dimensional Accelerate Lithium Migration Technique (ALMT), and evaluate the feasibility of using the theoretical ion migration model of one-dimensional ALMT to predict the ion migration behavior of two-dimensional ALMT. The result showed that the electrolyte or carbon plate can be used as matrix to draw equifield line graph similar to that by using mortar as matrix. Using electrolyte electrode module for simulation has advantages of simple production, easy measurement, rapidness, and economy. The electrolyte module can be used to simulate the equifield line distribution diagram in practical two-dimensional electrode configuration firstly. Then, several equifield line zones were marked, and several subzones under one-dimensional ALMT were separated from various equifield line zones. The theoretical free content distribution of alkali in concrete under two-dimensional electric field effect could be obtained from duration analysis.

Keywords

Acknowledgement

Supported by : National Science Council of Taiwan

References

  1. Bakker, J.D. (2008), "Control of ASR related risks in the Netherlands", Proceedings of the 13th International Conference on Alkali-Aggregate Reaction in Concrete, Trondheim, Norway, June.
  2. Bulteel, D., Garcia-Diaz, E. and Degrugilliers, P. (2010), "Influence of lithium hydroxide on alkali-silica reaction", Cem. Concr. Res., 40(4), 526-530. https://doi.org/10.1016/j.cemconres.2009.08.019
  3. Daidai, T. and Torii, K. (2008), "A proposal for rehabilitation of ASR-affected bridge piers with fractured steel bars", Proceeding of the 13th International Conference on Alkali-Aggregate Reaction, Trondheim, Norway, June.
  4. Era, K., Mihara, T., Kaneyoshi, A. and Miyagawa, T. (2008), "Controlling effect of lithium nitrite on alkali-aggregate reaction", Proceeding of the 13th International Conference on Alkali-Aggregate Reaction, Trondheim, Norway, June.
  5. Esteves, T.C., Rajamma, R., Soares, D., Silva, A.S., Ferreira, V.M. and Labrincha, J.A. (2012), "Use of biomass fly ash for mitigation of alkali-silica reaction of cement mortars", Constr. Build. Mater., 26(1), 687-693. https://doi.org/10.1016/j.conbuildmat.2011.06.075
  6. Feng, X., Thomas, M.D.A., Bremner, T.W., Folliard, K.J. and Fournier, B. (2010), "New observations on the mechanism of lithium nitrate against alkali silica reaction (ASR)", Cem. Concr. Res., 40(1), 94-101. https://doi.org/10.1016/j.cemconres.2009.07.017
  7. Folliard, K.J., Thomas, M.D.A., Ideker, J.H., East, B. and Fournier, B. (2008), "Case studies of treating ASR-affected structures with lithium nitrate", Proceeding of the 13th International Conference on Alkali-Aggregate Reaction, Trondheim, Norway, June.
  8. Fournier, B., Ideker, J.H., Folliard, K.J. and Thomas, M.D.A. (2009), "Effect of environmental conditions on expansion in concrete due to alkali-silica reaction (ASR)", Mater. Charact., 60(7), 669-679. https://doi.org/10.1016/j.matchar.2008.12.018
  9. Ghanem, H., Zollinger, D. and Lytton, R. (2010), "Predicting ASR aggregate reactivity in terms of its activation energy", Constr. Build. Mater., 24(7), 1101-1108. https://doi.org/10.1016/j.conbuildmat.2009.12.033
  10. Hasdemir, S., Tugrul, A. and Yilmaz, M. (2012), "Evaluation of alkali reactivity of natural sands", Constr. Build. Mater., 29, 378-385. https://doi.org/10.1016/j.conbuildmat.2011.10.029
  11. Hobbs, D.W. (1984), "Expansion of concrete due to alkali-silica reaction", Struct. Eng., 62a(1), 26-33.
  12. Kagimoto, H. and Kawamura, M. (2011), "Measurements of strain and humidity within massive concrete cylinders related to the formation of ASR surface cracks", Cem. Concr. Res., 41(8), 808-816. https://doi.org/10.1016/j.cemconres.2011.03.010
  13. Liu, C.C., Lee, C. and Wang, W.C. (2011), "Behavior of cations in mortar under accelerated lithium migration technique controlled by a constant voltage", J. Mar. Sci. Technol., 19(1), 26-34.
  14. Marks, M., Jozwiak-Niedzwiedzka, D. and Glinicki, M.A. (2012), "Automatic categorization of chloride migration into concrete modified with CFBC ash", Comput. Concrete, 9(5), 393-405.
  15. Michael, D.A., Thomas, B.F., Kevin, J.F., Jason, H.I. and Yadhira, R. (2007), "The use of lithium to prevent or mitigate alkali-silica reaction in concrete pavements and structures", Federal Highway Administration, U.S. Department Transportation, FHWA-HRT-06-133, 29-31.
  16. Wang, W.C. (2010), "A study of using one dimensional electrochemical cation migration technique to inhibit concrete ASR", Ph.D. Dissertation, National Central University, Jhongli. (in Chinese).
  17. Wang, W.C., Liu, C.C. and Lee, C. (2011), "Migration of cations in mortar under an electrical field controlled by a constant current density", Adv. Mater. Res., 150-151, 362-372.
  18. Wang, W.C., Liu, C.C. and Lee, C. (2012), "Effective ASR inhibiting length and applied electrical field under accelerated lithium migration technique", J. Mar. Sci. Technol., 20(3), 245-252.

Cited by

  1. Prediction of ions migration behavior in mortar under 2-D ALMT application to inhibit ASR vol.14, pp.3, 2014, https://doi.org/10.12989/cac.2014.14.3.263