Two-dimensional correlation relaxometry studies of cement pastes performed using a new one-sided NMR magnet

McDonald, PJ, Mitchell, J, Mulheron, M, Aptaker, PS, Korb, J and Monteilhet, L (2007) Two-dimensional correlation relaxometry studies of cement pastes performed using a new one-sided NMR magnet Cement and Concrete Research, 37. pp. 303-309.

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Abstract

We present preliminary results of the first NMR T(1)-T(2) two-dimensional relaxation Correlation experiments performed using a one-sided NMR system in cement based materials. Two-dimensional correlation relaxometry has itself only recently been demonstrated in cement paste where it proved to be a particularly sensitive probe of pore-water dynamics providing direct information on exchange of water between the gel and capillary pore networks. Further to this we have observed differences in the structural development of a selection of cement pastes throughout the early stages of hydration and verified the theoretical frequency dependence of the ratio T(1)/ T(2). When coupled with instrumentation developments in one-sided NMR magnets the way is opened to detailed, spatially resolved studies of the development of hydration and porosity in the surface layers (top 50 mm) of cementitious materials. A new magnet, suitable for such applications, is discussed. (C) 2006 Elsevier Ltd. All rights reserved.

Item Type:	Article
Divisions :	Surrey research (other units)
Authors :	Name Email ORCID McDonald, PJ p.mcdonald@surrey.ac.uk Mitchell, J Mulheron, M m.mulheron@surrey.ac.uk Aptaker, PS Korb, J Monteilhet, L
Date :	2007
DOI :	10.1016/j.cemconres.2006.01.013
Depositing User :	Symplectic Elements
Date Deposited :	17 May 2017 11:20
Last Modified :	24 Jan 2020 20:42
URI:	http://epubs.surrey.ac.uk/id/eprint/830972

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