29Si MAS-NMR hydration and compressive strength study in cement paste

29Si MAS-NMR measurements of cement have been used to follow the hydration process in cement pastes. Samples prepared using a w/c ratio of 0.45 and type I cement have been cured at temperatures over the range 20 to 55°C with curing times of 3 to 28 days. Compressive strength values for samples subje...

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Bibliographic Details
Published in:Cement and concrete research 1989-03, Vol.19 (2), p.228-234
Main Authors: Parry-Jones, G., Al-Tayyib, A.J., Al-Dulaijan, S.U., Al-Mana, A.I.
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Cement concrete constituents
Cements
Exact sciences and technology
Hydration
Materials
Properties of anhydrous and hydrated cement, test methods
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Summary:29Si MAS-NMR measurements of cement have been used to follow the hydration process in cement pastes. Samples prepared using a w/c ratio of 0.45 and type I cement have been cured at temperatures over the range 20 to 55°C with curing times of 3 to 28 days. Compressive strength values for samples subjected to the same time/temperature curing regime were also obtained. The compressive strength is found to show a linear dependence on hydration as characterized in terms of the NMR Q 0, Q 1 and Q 2 silicate polymerization states. Solid state 29Si NMR measurements appear promising as a means of monitoring cement/concrete strength.
ISSN:0008-8846
1873-3948
DOI:10.1016/0008-8846(89)90087-2