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Hydration characteristic on lime-silica fume pastes

  • Cements, Glasses, Ceramics
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Abstract

The hydration of two calcium hydroxide— silica fume mixtures was studied at 25°C, these are Mix I and Mix II with molar lime/silica ratios of 1 and 1.7, respectively. The free lime, free silica and chemically combined water contents were determined at various time of hydration from which the molar CaO/SiO2 ratios of the formed calcium silicate hydrate, C−S−H, were calculated. The results indicated that hydration takes place in six steps where C−S−H (I) is formed at early stages of hydration, for Mix I, While for Mix II formation of C−S−H (I) and C−S−H (II) were detected by X-ray diffraction analysis and differential thermal analysis.

Zusammenfassung

Bei 25° C wurde die Hydratation von zwei Calciumhydroxid-Siliziumdioxid-Aschegemischen untersucht. Dieses sind die Gemische Mix I und Mix II mit einem molaren Kalk/Kieselerde-Verhältnis von 1 und 1.7. Zu verschiedenen Hydratationszeiten wurde der Gehalt an freiem Kalk, freire Kieselerde und chemisch gebundenem Wasser bestimmt, woraus das molare CaO/SiO2 Verhältnis des gebildeten Calciumsilikathydrates C−S−H berechnet wurde. Die Hydratation verläuft in sechs Teilschritten, wobei im Falle von Mix I das C−S−H (I) in den Anfangsschritten gebildet wird, während Röntgendiffraktion und DTA bei Mix II die Bildung von C−S−H (I) und C−S−H (II) zeigen.

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References

  1. A. Traetteberg, II Cemento, 75 (1978) 369.

    CAS  Google Scholar 

  2. M. Buil and P. Acker, Cem. Concr. Res. 15(2) (1985) 463.

    Article  CAS  Google Scholar 

  3. B. Kurbus, F. Bakula, R. Gabrovesk and M. Pirc, Westen Solv., Kem. Drus., 34(4), (1982) 439.

    Google Scholar 

  4. H. Asgeirsson and G. Guuddmundsson, Cement. Concr. Res., 2 (1979) 249.

    Article  Google Scholar 

  5. R. F. Feldman and Huang Chengyi, Cem. Concr. Res. 15 (1985) 765.

    Article  CAS  Google Scholar 

  6. S. A. Abo El Enein, M. Daimon, S. Ohsawa and R. Kondo, Chem. Concr. Res., 4 (1974) 299.

    Article  CAS  Google Scholar 

  7. S. A. Abo El Enein, M. Shater and M. Nowar, Il Cemento, 78 (1981) 137.

    CAS  Google Scholar 

  8. S. A. Abo El Enein E. E. Hekal, M. Abdel Khalek and F. I. El-Hosiny, Il Cemento, 87 (1990) 147.

    CAS  Google Scholar 

  9. S. Brunauer, D. L. Kantro and L. E. Copeland, J. Am. Chem. Soc., 80 (1958) 761.

    Article  CAS  Google Scholar 

  10. S. Brunauer and S. A. Greenberg, Proc. 4th Inter. Symp. Chem. Cement, Washington (1960); Natn Bur. Stand. Mongor, 43. I. (1962) 135.

  11. V. S. Ramachandran and J. J. Beaudoin, J. Mater. Sci., 11 (1976) 1893.

    Article  CAS  Google Scholar 

  12. H. El-Didamony, Thermochim. Acta, 35 (1980) 201.

    Article  CAS  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt

    Nabila M. Guindy, S. A. Abou El Enien, F. I. El Hosiny & S. M. A. El Gamal

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  1. Nabila M. Guindy
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  2. S. A. Abou El Enien
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  3. F. I. El Hosiny
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  4. S. M. A. El Gamal
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Guindy, N.M., El Enien, S.A.A., El Hosiny, F.I. et al. Hydration characteristic on lime-silica fume pastes. Journal of Thermal Analysis 40, 151–157 (1993). https://doi.org/10.1007/BF02546565

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