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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: [email protected]
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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

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