Sage Journals: Discover world-class research

Abstract

A hydrated calcium silicate insulation board was one of three construction materials used in the round-robin study of hygric properties carried out in the HAMSTAD project (Roels, S., Carmeliet, J., Hens, H., Adan, O., Brocken, H., Cerny, R., Pavlik, Z., Hall, C., Kumaran, K., Pel, L. and Plagge, R. (2004). Interlaboratory Comparison of Hygric Properties of Porous Building Materials, Journal of Thermal Envelope and Building Science, 27: 307-325). We report here the results of a physicochemical examination of this material. Analysis by synchrotron X-ray diffraction and nuclear magnetic resonance show that the mineralogical composition is essentially pure xonotlite. Bulk density and pore size distribution were obtained by mercury intrusion porosimetry and helium pycnometry; microstructural fabric was observed by high and low resolution electron microscopy; and organic content measured by Carbon-Hydrogen-Nitrogen (CHN) chemical analysis.

Keywords

calcium silicate xonotlite

Get full access to this article

View all access options for this article.

References

Shaw, S. , Clark, S.M. and Henderson, C.M.B. (2000). Hydrothermal Formation of the Calcium Silicate Hydrates, Tobermorite (Ca5Si6O16(OH)2 · 4H2O) and Xonotlite (Ca6Si6O17(OH)2): an in situ Synchrotron Study , Chemical Geology, 167: 129-140 .

Taylor, H.F.W. (1997). Cement Chemistry, 2nd edn, Thomas Telford, London .

Roels, S. , Carmeliet, J. , Hens, H. , Adan, O. , Brocken, H. , Cerny, R. , Pavlik, Z. , Hall, C. , Kumaran, K. , Pel, L. and Plagge, R. (2004). Interlaboratory Comparison of Hygric Properties of Porous Building Materials , Journal of Thermal Envelope and Building Science, 27: 307-325 .

Koronthalyova, O. and Matiasovsky, P. (2003). Thermal Conductivity of Fibre Reinforced Porous Calcium Silicate Hydrate-based Composites , Journal of Thermal Envelope and Building Science, 27: 71-89 .

Koronthalyova, O. and Matiasovsky, P. (2003). Thermophysical Parameters of Calcium Silicate Insulation Measured by Guarded Hotplate and Pulse Transient Methods , In: Thermophysics 2003: Proceedings of the Thermophysical Working Group, Slovak Physical Society, pp. 39-45 .

Hall, C. , Cockcroft, J.K. , Jacques, S.D.M. , Turrillas, X. , Hanfland, M. and Häusermann, D. (1996). Rapid Whole-rock Mineral Analysis and Composition Mapping by Synchrotron X-ray Diffraction , Analytical Communications, 33: 245-248 .

Hall, C. , Colston, S.L. , Jupe, A.C. , Jacques, S.D.M. , Livingston, R. , Ramadan, A.O.A. , Made, A.W. and Barnes, P. (2000). Non-destructive Energy-dispersive Diffraction Imaging of the Interior of Bulk Concrete , Cement and Concrete Research, 30: 491-495 .

Hejny, C. and Armbruster, T. (2001). Polytypism in Xonotlite Ca₆Si₆O₁₇(OH)₂, Zeitschrift für Kristallographie, 216: 396-408.

Hall, C. and Hoff, W.D. (2002). Water Transport in Brick, Stone and Concrete, Taylor and Francis, London and New York .

10.

Nocun-Wczelik, W. (1999). Effect of Na and Al on the Phase Composition and Morphology of Autoclaved Calcium Silicate Hydrates , Cement and Concrete Research, 29: 1759-1767 .

11.

Hamilton, A. and Hall, C. (December 2002). Mercury Intrusion Porosimetry of Calcium Silicate and Ceramic Brick: Further Results, HAMSTAD Project Report, Centre for Materials Science and Engineering, University of Edinburgh .

12.

Skibsted, J. , Hall, C. and Jakobsen, H.J. (2002). Nuclear Magnetic Resonance Spectroscopy and Magnetic Resonance Imaging of Cements and Cement-based Materials, In: Bensted, J. and Barnes, P. (eds), Structure and Performance of Cements, 2nd edn, Taylor and Francis, London .

13.

Noma, H. , Adachi, Y. , Matsuda, Y. and Yokoyama, T. (1998). 29Si and 1H NMR of Natural and Synthetic Xonotlite , Chemistry Letters, 3: 219-220 .

14.

Lippmaa, E. , Magi, M. , Samoson, A. , Engelhardt, G. and Grimmer, A.-R. (1980). Structural Studies of Silicates by Solid-state High-resolution Silicon-29 NMR , Journal of the American Chemical Society, 102: 4889-4893 .

15.

Bell, G.M.M. , Bensted, J. , Glasser, F.P. , Lachowski, E.E. , Roberts, D.R. and Taylor, M.J. (1990). Study of Calcium Silicate Hydrates by Solid State High Resolution 29Si Nuclear Magnetic Resonance , Advances in Cement Research, 3: 23-37 .

16.

Cong, X. and Kirkpatrick, R.J. (1996). Si-29 and O-17 NMR Investigations of the Structure of Some Crystalline Calcium Silicate Hydrates , Advanced Cement Based Materials, 3: 133-143 .

Physicochemical Characterization of a Hydrated Calcium Silicate Board Material

Abstract

Keywords

Get full access to this article

References