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Struktura C-S-H

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Warianty tytułu
EN
The structure of C-S-H
Języki publikacji
PL EN
Abstrakty
PL
Podano przegląd modeli opisujących zmiany struktury C-S-H w ujęciu krystalochemicznym w zależności od składu wyrażonego stosunkiem wapnia do krzemu, który jest wyznaczony przez skład roztworu wypełniającego pory. Porównano różne modele i omówiono je w świetle ostatnich wyników uzyskanych za pomocą najnowszych metod badawczych, takich jak mikroskopia sił atomowych i dwuwymiarowa spektroskopia za pomocą magnetycznego rezonansu jądrowego. Omówiono charakter żelu C-S-H w zaczynie cementowym i jego krystaliczność.
EN
The paper reviews the models describing the structural evolution of C-S-H at the crystal-chemical level as a function of composition in terms of calcium to silicon ratio which is fixed by the pore solution composition. The different models are compared and discussed in the light of recent data obtained by new investigation techniques like Atomic Force Microscopy and two dimensional Nuclear Magnetic Resonance spectroscopy. The nature of the C-S-H gel in a cement paste and its crystallinity are discussed.
Czasopismo
Rocznik
Strony
65--73
Opis fizyczny
Bibliogr. 35 poz., il.
Twórcy
autor
  • Laboratorie de Recherche sur la Reactivite des Solides, UMR CNRS - Universite de Bourgogne, Dijon, France
Bibliografia
  • 1. H. F. W. Taylor, Hydrated calcium silicates. Part 1. Compound formation at ordinary temperatures, J. Chem. Soc., 1950, p. 3682-3690.
  • 2. J. A. Gard and H. F. W. Taylor, Calcium silicate hydrate (II), Cem. Conc. Res, 1976, 6(5), p. 667-677.
  • 3. H. F. W. Taylor, Hydrated calcium silicates: Part 5: The water content of calcium silicate hydrate (I), J.Chem.Soc., 1953, p. 163-171.
  • 4. H. F. W. Taylor, Proposed structure for calcium silicate hydrate gel, J. Amer. Ceram. Soc., 1986, 69 (6), p. 464-467.
  • 5. X. Cong and R. J. Kirkpatrick, 29Si MAS NMR study of the structure of calcium silicate hydrate, Advanced Cement Based Materials, 1996, 3 (3-4), p. 144-156.
  • 6. W. Wieker, A. R. Grimmer and A. Winkler, Solid-state high-resolution 29Si NMR spectroscopy of synthetic 14 A, 11 A and 9 A Tobermorites, Cement and Concrete Research, 1982, 12, p. 333-339.
  • 7. S. Komarneni, D. M. Roy, C. A. Fyfe and G. J. Kennedy, Naturally occurring 1.4nm tobermorite and synthetic jennite: Characterisation by 27AI and 29Si MAS-NMR spectroscopy and cation exchange properties, Cement Concrete Research, 1987, 17 (6), p. 891-895.
  • 8. T. Mitsuda, H. Toraya, Y. Okada and M. Shimoda. Synthesis of tobermorite NMR spectroscopy and analytical electron microscopy, Ceram. Trans., 1989, 5, p. 206-213.
  • 9. S. A. Hamid, The cristal structure of the 11A natural tobermorite Ca2.25[Si3O7.5(OH)1.5]·H2O, Zeitshrift fur kristallographie. 1981, 154, p. 189.
  • 10. C. Hoffmann and T. Armbruster, Clinotobermorite, Ca5[Si3O8(OH)]2.4H2O-Ca5[Si6O17]·5H2O, a natural C-S-H (I) type cement mineral: determination of the substructure, Zeitshrift fur kristallographie, 1997, 212, p. 864-873.
  • 11. E. Bonaccorsi, S. Merlino and H. F. W. Taylor, The crystal structure of jennite, Ca9Si6O18(OH)6·8H2O, Cement and Concrete Research, 2004, 34 (9), p. 1481-1488.
  • 12. A. B. Carpenter, R. A. Chalmers, J. A. Gard, K. Speakman and H. F. W. Taylor, Jennite, a new mineral, American Mineralogist, 1966, 51 (1-2), p. 56-74.
  • 13. I G. Richardson and G. W. Grooves, Microstructure and microanalysis of hardened ordinary Portland cement pastes, J.Mater.Sci., 1993, 28, p. 265-77.
  • 14. H. F. W. Taylor, Nanostructure of C-S-H: Current status. Advanced Cement Based Materials, 1993, 1, p. 38-46.
  • 15. I. Klur, B. Pollet, J. Virlet and A. Nonat, C-S-H structure evolution with calcium content by multinuclear NMR, in Nuclear Magnetic Resonance Spectrsoscopy of Cement-Based Materials, A.-R.G. P. Colombet, H. Zanni, P. Sozzani, Editors, 1996, Springer, Berlin, p. 119-141.
  • 16. F. Brunet, P. Bertani, I. Klur, T. Charpentier, J. Virlet and A. Nonat, Application of 29Si homonuclear and 1H/29Si heteronuclear NMR correlation to structural studies of Calcium Silicate Hydrates, J. Phys. Chem. B, 2004, 108 (40), p. 15494-15502.
  • 17. E. P. Flint, H. F. McMurdie and L. S. Wells, Formation of hydrated calcium silicates at elevated temperatures and pressures, National Bureau of standards, 1938, 21, p. 617.
  • 18. H. H. Steinour, The system CaO-SiO2-H2O and the hydration of the calcium silicates, Portland cement association, 1946.
  • 19. T. Thorvaldson. F. W. Birss and K. G. McCurdy, Calcium exchange in systems of xCaO·SiO2·yH2O-Ca(OH)2-H2O, in 4th I.C.C.C., 1960, Washington.
  • 20. X. Lecoq, Etude de l'hydratation a concentration controlée du silicate tricalcique Ca3SiO5 et des caractéristiques de ses produits de reaction, 1993, Université de Bourgogne, Dijon.
  • 21. M. Grutzeck, A. Benesi and B. Fanning, Silicon 29 magic angle spinning nuclear magnetic resonance study of calcium silicate hydrates, J.AmerCeram.Soc., 1989, 72 (4), p. 665-668.
  • 22. E. P. Flint and L. S. Wells, Study of the system CaO-SiO2-H2O at 30°C and of the reaction of water on the anhydrous calcium silicates, Bureau of standard journal of research, 1934, 12, p. 751-783.
  • 23. D. Damidot, A. Nonat, P. Barret, D. Bertrandie, H. Zanni and R. Rassem, C3S hydration in diluted and stirred suspensions: Ill NMR study of C-S-H precipited during the two kinetic steps, Advances in Cement Research, 1995, 7 (25), p. 1-8.
  • 24. H. M. Jennings, Aqueous solubility relationships for two types of calcium silicate hydrate, J.Am.Ceram.Soc., 1986, 69, p. 614-618.
  • 25. P. Barret and D. Bertrandie, Comment on "Aqueous Solubility Relationships for Two Types of Calcium Silicate Hydrate'', Journal of American Ceramic Society, 1988, 71 (2), p. C-113/C-115.
  • 26. S. Gauffinet, E. Finot, E. Lesniewska and A. Nonat, Observation directe de la croissance d'hydrosilicate de calcium sur des surfaces d'alite et de silice par microscopie a force atomique, Compte Rendu de l'Académie des Sciences de Paris, 1998, 327 (4). p. 231-236.
  • 27. S. Garrault-Gauffinet, Etude expérimentale et par simulation numérique de la cinétique de croissance et de la structure des hydrosilicates de calcium, produits d'hydratation des silicates tricalcique et dicalcique, Université de Bourgogne, 1998.
  • 28. Gauffinet S., Finot .E., Lesniewska E. , Collin S., Nonat A. AFM and SEM studies of C-S-H growth on C3S surface during its early hydration in XXth International Conference on cement microscopy. 1998. Guadalajara, Mexico.
  • 29. M. A. Schultz and L. J. Struble, Use of oscillatory shear to study flow behaviour of fresh cement paste, Cem. Concr. Res., 1993, 23 (2), p. 273-282.
  • 30. L. Nachbaur, J. C. Mutin, A. Nonat and L. Choplin, Dynamic mode rheology of cement and tricalcium silicate pastes from mixing to setting, Cement and Concrete Research, 2001, 31 (2), p. 183-192.
  • 31. A. Guinier, X-Ray Diffraction in Crystals, Imperfect Crystals, and amorphous Bodies, 1994, New York, Dover Publications, Inc.
  • 32. S. Lesko, E. Lesniewska, A. Nonat, J.-C. Mutin and J.-P. Goudonnet, Investigation by atomic force microscopy of forces at the origin of cement cohesion, Ultramicroscopy, 2001. 86 (1-2), p. 11-21.
  • 33. C. Plassard, E. Lesniewska, I. Pochard and A. Nonat, Investigation of the surface structure and elastic properties of calcium silicate hydrates at the nanoscale, Ultramicroscopy, 2004, 100 (3-4), p. 331-338.
  • 34. A. Nonat and X. Lecoq, The structure, stoichiometry and properties of C-S-H prepared by C3S hydration under controlled solution, in Nuclear Magnetic Resonance Spectroscopy of cement based materials, 1996, Bergamo, Italie, Spinger.
  • 35. A. Nonat, A. C. Courault and D. Damidot, A new model describing the variation of C-S-H Ca/Si ratio with lime concentration in solution, Cement Wapno Beton, 2001, 5, p. 184-191.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BTB2-0022-0093
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