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Clinker mineral hydration at reduced relative humidities

Mejlhede Jensen, O. / Freiesleben Hansen, P. / Lachowski, E.E. / Glasser, F.P.

Vapour phase hydration of pure cement clinker minerals at reduced relative humidities is described. This is relevant to modern high performance concrete that may self-desiccate during hydration and is also relevant to the quality of the cement during storage. Both theoretical considerations and experimental data are presented showing that C₃A can hydrate at lower humidities than either C₃S or C₂S. It is suggested that the initiation of hydration during exposure to water vapour is nucleation controlled. When C₃A hydrates at low humidity, the characteristic hydration product is C₃AH₆, hydrogarnet.

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Clinker mineral hydration at reduced relative humidities

Mejlhede Jensen, O. / Freiesleben Hansen, P. / Lachowski, E.E. / Glasser, F.P.

Vapour phase hydration of pure cement clinker minerals at reduced relative humidities is described. This is relevant to modern high performance concrete that may self-desiccate during hydration and is also relevant to the quality of the cement during storage. Both theoretical considerations and experimental data are presented showing that C₃A can hydrate at lower humidities than either C₃S or C₂S. It is suggested that the initiation of hydration during exposure to water vapour is nucleation controlled. When C₃A hydrates at low humidity, the characteristic hydration product is C₃AH₆, hydrogarnet.

Clinker mineral hydration at reduced relative humidities

Mejlhede Jensen, O. / Freiesleben Hansen, P. / Lachowski, E.E. / Glasser, F.P.

Vapour phase hydration of pure cement clinker minerals at reduced relative humidities is described. This is relevant to modern high performance concrete that may self-desiccate during hydration and is also relevant to the quality of the cement during storage. Both theoretical considerations and experimental data are presented showing that C₃A can hydrate at lower humidities than either C₃S or C₂S. It is suggested that the initiation of hydration during exposure to water vapour is nucleation controlled. When C₃A hydrates at low humidity, the characteristic hydration product is C₃AH₆, hydrogarnet.

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Titel:

Clinker mineral hydration at reduced relative humidities

Beteiligte:

Mejlhede Jensen, O. (Autor:in) / Freiesleben Hansen, P. (Autor:in) / Lachowski, E.E. (Autor:in) / Glasser, F.P. (Autor:in)

Erschienen in:

Cement and Concrete Research ; 29 ; 1505-1512

Erscheinungsdatum:

1999

Format / Umfang:

8 Seiten, 15 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0008-8846(99)00132-5

Medientyp:

Aufsatz (Zeitschrift)

Format:

Print

Sprache:

Englisch

Schlagwörter:

Zement , Luftfeuchte , Beton , Mineral , Plastifiziermittel , Keimbildung , Kernresonanzspektrometrie , Rasterelektronenmikroskopie , relative Feuchtigkeit , Hydratisieren , Tricalciumsilicat , Tricalciumaluminat , Calciumsulfid , Portlandzementklinker , Hochleistungsbeton

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Clinker Mineral Hydration at Reduced Relative Humidities

O. M. Jenson | NTIS | 1998

Clinker mineral hydration at reduced relative humidities

Mejlhede Jensen, Ole | TIBKAT | 1998

PAPERS - Clinker mineral hydration at reduced relative humidities

Jensen, O.M. | Online Contents | 1999

Clinker mineral hydration at reduced relative humidities - Contamination and etching

Jensen, O.M. / Hansen, P.F. / Lachowski, E.E. et al. | British Library Online Contents | 1999

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