In situ quasi-elastic scattering characterization of particle size effects on the hydration of tricalcium silicate

The effects of different particle size distributions on the real-time hydration of tricalcium silicate cement paste were studied in situ by quasi-elastic neutron scattering. The changing state of water in the cement system was followed as a function both of cement hydration time and of temperature f...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials research 2004-11, Vol.19 (11), p.3242-3254
Main Authors: Allen, A.J., McLaughlin, J.C., Neumann, D.A., Livingston, R.A.
Format: Article
Language:English
Subjects:
Cement
Microstructure
Neutron scattering
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effects of different particle size distributions on the real-time hydration of tricalcium silicate cement paste were studied in situ by quasi-elastic neutron scattering. The changing state of water in the cement system was followed as a function both of cement hydration time and of temperature for different initial particle size distributions. It was found that the length of the initial, dormant, induction period, together with the kinetics of hydration product nucleation and growth, depends on the hydration temperature but not on the particle size distribution. However, initial particle size does affect the total amount of cement hydrated, with finer particle size producing more hydrated cement. Furthermore, the diffusion-limited rate of hydration at later hydration time is largely determined by the initial tricalcium silicate particle size distribution.
ISSN:0884-2914
2044-5326
DOI:10.1557/JMR.2004.0415