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Prediction of temperature distribution in hardening silica fume-blended concrete

  • Wang, Xiao-Yong (Department of Architectural Engineering, College of Engineering, Kangwon National University)
  • Received : 2013.05.04
  • Accepted : 2013.08.31
  • Published : 2014.01.25

Abstract

Silica fume is a by-product of induction arc furnaces and has long been used as a mineral admixture to produce high-strength, high-performance concrete. Due to the pozzolanic reaction between calcium hydroxide and silica fume, compared with that of Portland cement, the hydration of concrete containing silica fume is much more complex. In this paper, by considering the production of calcium hydroxide in cement hydration and its consumption in the pozzolanic reaction, a numerical model is proposed to simulate the hydration of concrete containing silica fume. The heat evolution rate of silica fume concrete is determined from the contribution of cement hydration and the pozzolanic reaction. Furthermore, the temperature distribution and temperature history in hardening blended concrete are evaluated based on the degree of hydration of the cement and the mineral admixtures. The proposed model is verified through experimental data on concrete with different water-to-cement ratios and mineral admixture substitution ratios.

Keywords

Acknowledgement

Grant : An integrated program for predicting chloride penetration into reinforced concrete structures by using a Cement Hydration Model

Supported by : National Research Foundation of Korea

References

  1. Chen, C. and An, X. (2012), "Model for simulating the effects of particle size distribution on the hydration process of cement", Comput. Concr., 9(3), 179-193. https://doi.org/10.12989/cac.2012.9.3.179
  2. De Schutter, G. and Taerwe, L. (1995), "General hydration model for Portland cement and blast furnace slag cement", Cement Concrete Res., 25(3), 593-604. https://doi.org/10.1016/0008-8846(95)00048-H
  3. Han, S.H., Kim, J.K. and Park, Y.D. (2003), "Prediction of compressive strength of fly ash concrete by new apparent activation energy function", Cement Concrete Res., 33(7), 965-971. https://doi.org/10.1016/S0008-8846(03)00007-3
  4. Hyun, C. (1995), "Prediction of thermal stress of high-strength concrete and massive concrete", Ph.D Thesis, The University of Tokyo, Tokyo, Japan.
  5. Lura, P., Jensen, O.M. and Breugel, K.V. (2003), "Autogenous shrinkage in high-performance cement paste: An evaluation of basic mechanisms", Cement Concrete Res., 33(2), 223-232. https://doi.org/10.1016/S0008-8846(02)00890-6
  6. Maekawa, K., Ishida, T. and Kishi, T. (2009), Multi-scale Modeling of Structural Concrete, London and New York, Taylor & Francis.
  7. Maruyama, I. , Suzuki, M. and Sato, R. (2005), "Prediction of temperature in ultra high-strength concrete based on temperature dependent hydration model", ACI SP-228, Proceeding of 7th Intternational Symp on High Performance Concrete (Edited by Henry G. Russell) , Washington, D.C., pp.1175-1186.
  8. Papadakis, V.G. (1999), "Experimental investigation and theoretical modeling of silica fume activity in concrete", Cement Concrete Res., 29(1), 79-86. https://doi.org/10.1016/S0008-8846(98)00171-9
  9. Papadakis, V.G. (2000), "Effect of supplementary cementing materials on concrete resistance against carbonation and chloride", Cement Concrete Res., 30(2), 291-299. https://doi.org/10.1016/S0008-8846(99)00249-5
  10. Park, K.B., Jee, N.Y., Yoon, I.S. and Lee, H.S. (2008), "Prediction of temperature distribution in high-strength concrete using hydration model", ACI. Mater. J., 105(2), 180-186.
  11. Saeki, T. and Monteiro, P.J.M. (2005), "A model to predict the amount of calcium hydroxide in concrete containing mineral admixture", Cement Concrete Res., 35(10), 1914-1921. https://doi.org/10.1016/j.cemconres.2004.11.018
  12. Song, H.W. and Kwon, S.J. (2009), "Evaluation of chloride penetration in high performance concrete using neural network algorithm and micro pore structure", Cement Concrete Res., 39 (9), 814-824. https://doi.org/10.1016/j.cemconres.2009.05.013
  13. Tang, C.W. (2010), "Hydration properties of cement pastes containing high-volume mineral admixtures", Comput. Concr., 7(1), 17-38. https://doi.org/10.12989/cac.2010.7.1.017
  14. Tian, Y., Jin, X. and Jin, N. (2013), "Thermal cracking analysis of concrete with cement hydration model and equivalent age method", Comput. Concr., 11(4), 271-289 https://doi.org/10.12989/cac.2013.11.4.271
  15. Tomosawa, F. (1997), "Development of a kinetic model for hydration of cement", Proceedings of tenth international congress chemistry of cement (Edited by S. Chandra), Gothenburg.
  16. Wang, C. and Dilger, W.H. (1994), "Prediction of temperature distribution in hardening concrete", Proceeding of Thermal Cracking in Concrete at Early Ages (Edited by R.Spingenschmid), London.
  17. Wang, X.Y. and Lee, H.S. (2010), "Modeling the hydration of concrete incorporating fly ash or slag", Cement Concrete Res., 40(7), 984-996. https://doi.org/10.1016/j.cemconres.2010.03.001

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