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Inelastic neutron scattering investigation of hydrating tricalcium and dicalcium silicate mixture pastes: Ca(OH)2 formation and evolution of strength

Published online by Cambridge University Press:  01 July 2006

Vanessa K. Peterson ,
Dan A. Neumann  and
Richard A. Livingston
Vanessa K. Peterson*
Affiliation:
Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8562and Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742-2115
Dan A. Neumann
Affiliation:
Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8562
Richard A. Livingston
Affiliation:
Federal Highway Administration, McLean, Virginia 22101
*
a) Address all correspondence to this author. e-mail: v.peterson@chem.usyd.edu.au
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Abstract

The hydration of controlled tricalcium and dicalcium silicate mixtures was investigated using inelastic neutron scattering. The amount of Ca(OH)2 produced by each mixture was quantified based on the vibrational mode at approximately 41 meV. The results of compressive strength testing correlate with the amount of Ca(OH)2 produced and with previous results from quasielastic neutron scattering. These results establish a link between hydration mechanics and the evolution of hydration products leading to desirable properties, such as strength.

Keywords

Chemical reactionNeutron scatteringStrength
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 7 , July 2006 , pp. 1836 - 1842
Copyright
Copyright © Materials Research Society 2006

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References

REFERENCES

1.Peterson, V.K., Brown, C.M., Livingston, R.A.: Quasielastic and inelastic neutron scattering study of the hydration of monoclinic and triclinic tricalcium silicate. Chem. Phys. (2006, in press).Google Scholar
2.Faraone, A., Fratini, E., Baglioni, P., Chen, S-H.: Quasielastic and inelastic neutron scattering on hydrated calcium silicate pastes. J. Chem. Phys. 121, 3212 (2004).CrossRefGoogle ScholarPubMed
3.Allen, A.J., McLaughlin, J.C., Neumann, D.A., Livingston, R.A.: In situ quasi-elastic scattering characterization of particle size effects on the hydration of tricalcium silicate. J. Mater. Res. 19, 3242 (2004).CrossRefGoogle Scholar
4.Thomas, J.J., Chen, J.J., Allen, A.J., Jennings, H.M.: Effects of decalcification on the microstructure and surface area of cement and tricalcium silicate pastes. Cem. Concr. Res. 34, 2297 (2004).CrossRefGoogle Scholar
5.Thomas, J.J., Chen, J.J., Jennings, H.M., Neumann, D.A.: Ca–OH bonding in the C–S–H gel phase of tricalcium silicate and white portland cement pastes measured by inelastic neutron scattering. Chem. Mater. 15, 3813 (2003).CrossRefGoogle Scholar
6.FitzGerald, S.A., Thomas, J.J., Neumann, D.A., Livingston, R.A.: A neutron scattering study of the role of diffusion in the hydration of tricalcium silicate. Cem. Concr. Res. 32, 409 (2002).CrossRefGoogle Scholar
7.Thomas, J.J., FitzGerald, S.A., Neumann, D.A., Livingston, R.A.: State of water in hydrating tricalcium silicate and portland cement pastes as measured by quasi-elastic neutron scattering. J. Am. Ceram. Soc. 84, 1811 (2001).CrossRefGoogle Scholar
8.Fitzgerald, S.A., Neumann, D.A., Rush, J.J., Kirkpatrick, R.J., Cong, X., Livingston, R.A.: Inelastic neutron scattering study of the hydration of tricalcium silicate. J. Mater. Res. 14, 1160 (1998).CrossRefGoogle Scholar
9.Thomas, J.J., Jennings, H.M., Allen, A.J.: The surface area of cement paste as measured by neutron scattering: Evidence for two C–S–H morphologies. Cem. Concr. Res. 28, 897 (1998).CrossRefGoogle Scholar
10.Peterson, V.K., Neumann, D.A., Livingston, R.A.: Hydration of tricalcium and dicalcium silicate mixtures studied using quasielastic neutron scattering. J. Phys. Chem. B 109, 14449 (2005).CrossRefGoogle ScholarPubMed
11.Peterson, V.K., Neumann, D.A., and Livingston, R.A.: Interactions of hydrating tricalcium and dicalcium silicate using time-resolved quasielastic neutron scattering, in Neutron and X-Ray Scattering as Probes of Multiscale Phenomena edited by Bhatia, S.R., Khalifah, P.G., Pochan, D.J., and Radelli, P.G. (Mater. Res. Soc. Symp. Proc. 840, Warrendale, PA, 2005), Q2.2, p. 33.Google Scholar
12.Taylor, H.F.W.: Cement Chemistry (Thomas Telford, London, UK, 1997).CrossRefGoogle Scholar
13.Udovic, T.J., Neumann, D.A., Leão, J., Brown, C.M.: Origin and removal of spurious background peaks in vibrational spectra measured by filter-analyzer neutron spectrometers. Nucl. Instrum. Meth. A 517, 189 (2004).CrossRefGoogle Scholar
14. DAVE, National Institute of Standards and Technology Center for Neutron Research, Gaithersburgh, MD http://www.ncnr.nist.gov.dave.Google Scholar
15.Annual Book of ASTM Standards, Section Four: Construction, Designation: C 109/C (ASTM, West Conshohocken, PA, 2000).Google Scholar
16.Warner, R.F., Rangan, B.V., Hall, A.S.: Reinforced Concrete (Longman Cheshire, Melbourne, Australia, 1989).Google Scholar
17.Juenger, M.C.G., Monteiro, P.J.M., Gartner, E.M., Denbeaux, G.P.: A soft x-ray microscope investigation into the effects of calcium chloride on tricalcium silicate hydration. Cem. Concr. Res. 35, 19 (2005).CrossRefGoogle Scholar
18.Björnström, J., Martinelli, A., Matic, A., Börjesson, L., Panas, I.: Accelerating effects of colloidal nano-silica for beneficial calcium-silicate-hydrate formation in cement. Chem. Phys. Lett. 392, 242 (2004).CrossRefGoogle Scholar
19.Lawrence, P., Cyr, M., Ringot, E.: Mineral admixtures in mortars effect of inert materials on short-term hydration. Cem. Concr. Res. 33, 1939 (2003).CrossRefGoogle Scholar
20.Yamazaki, K.: Fundamental studies on the effects of mineral fines on the workability of concrete. Trans. Jpn. Soc. Civil Eng. 85, 15 (1962).Google Scholar
21.Richardson, I.G.: Tobermorite/jennite- and tobermorite/calcium hydroxide-based models for the structure of C–S–H: Applicability to hardened pastes of tricalcium silicate, β-dicalcium silicate, Portland cement, and blends of Portland cement with blast-furnace slag, metakaolin, or silica fume. Cem. Concr. Res. 34, 1733 (2004).CrossRefGoogle Scholar
22.Nonat, A.: Interactions between chemical evolution (hardening) and physical evolution (setting) in the case of tricalcium silicate. Mater. Struct. 27, 187 (1994).CrossRefGoogle Scholar