Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Sulfate Attack and the Role of Cement Compositions

  • Lee, Seung-Tae (Department of Civil Engineering, Kunsan National University) ;
  • Lee, Seung-Heun (Materials Science and Engineering, Kunsan National University)
  • Published : 2007.09.30
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Abstract

This paper presents an experimental study of the sulfate resistance of mortars and pastes exposed to sodium sulfate solutions up to one year. In order to check deterioration modes due to sulfate attack, the sodium sulfate solution was varied at three concentration steps (3,380, 10,140 and 33,800 ppm of $SO_4^{2-}$ ions), and maintained at ambient temperature. The tests include a visual examination, expansion and compressive strength loss measurements as well as x-ray diffraction tests. The experimental data indicated that the use of cement with a low $C_3A$ content and low silicate ratio has a beneficial effect on the sulfate attack of mortars. In contrast, the mortars with a high $C_3A$ content and high silicate ratio became severely degraded due to the formation of ettringite, gypsum and/or thaumasite in the cement matrix.

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References

  1. P. K. Mehta, 'Mechanism of Sulfate Attack on Portland Cement Concrete-Another Look,' Cement and Concrete Research, 13 [3] 401-06 (1983) https://doi.org/10.1016/0008-8846(83)90040-6
  2. M. D. Cohen and B. Mather, 'Sulfate Attack on Concrete-Research Needs,' ACI Materials Journal, 88 [1] 62-9 (1991)
  3. S. U. Al-Dulaijan, 'Sulfate Resistance of Plain and Blended Cements Exposed to Magnesium Sulfate Solutions,' Construction and Building Materials, 21 [8] 1792-802 (2007) https://doi.org/10.1016/j.conbuildmat.2006.05.017
  4. N. Shanahan and A. Zayed, 'Cement Composition and Sulfate Attack,' Cement and Concrete Research, 37 [4] 618-23 (2007) https://doi.org/10.1016/j.cemconres.2006.12.004
  5. P. K. Mehta, Concrete: Structures, Properties and Materials, pp. 196, Prentice-Hall, New Jersey, USA, 1993
  6. Rasheeduzzafar, F. H. Dakhil, A. S. Al-Gahtani, S. S. Al-Saadoun, and A. B. Mather, 'Influence of Cement Composition on Corrosion of Reinforcement and Sulfate Resistance of Concrete,' ACI Materials Journal, 87 [2] 114-22 (1990)
  7. O. S. B. Al-Amoudi, Rasheeduzzafar, M. Maslehuddin, and S. N. Abduhawad, 'Influence of Chloride Ions on Sulphate Deteriorationin Plain and Blended Cements,' Magazine of Concrete Research, 46 [167] 113-23 (1994) https://doi.org/10.1680/macr.1994.46.167.113
  8. H. Y. Moon and S. T. Lee, 'Influence of Silicate Ratio and Additives on the Sulphate Resistance of Portland Cement,' Advances in Cement Research, 15 [3] 91-101 (2003) https://doi.org/10.1680/adcr.15.3.91.36622
  9. O. S. B. Al-Amoudi, 'Sulfate Attack and Reinforcement Corrosion in Plain and Blended Cements Exposed to Sulfate Environments,' Building and Environment, 33 [1] 53-61 (1998) https://doi.org/10.1016/S0360-1323(97)00022-X
  10. H. Y. Moon, S. T. Lee, H. S. Kim, and S. S. Kim, 'Evaluation on the Resistance of Portland Cement Mortars Due to Chemical Attack(in Korean),' J. Kor. Soc. of Civil Eng., 22 [1] 181-91 (2002)