Evaluation of the Hydration of Portland Cement Containing Various Carbonates by Means of Thermal Analysis

Evaluation of the Hydration of Portland Cement Containing Various Carbonates by Means of Thermal Analysis

Portland cement containing a fixed amount of mineral admixtures (calcium carbonate or dolomite or magnesite) was hydrated at 60 degree C for 7- and 28 days. Phase compositions were evaluated by thermogravimetric analysis and by powder X-ray diffraction. Measurements of surface area indicated the dev...

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Veröffentlicht in:Acta chimica Slovenica 2006-01, Vol.53 (2)
Hauptverfasser: Gabrovsek, R, Vuk, T, Kaucic, V
Format: Artikel
Sprache:eng
Schlagworte:
Admixtures
Carbonates
Diffraction
Dolomite
Hydration
Magnesium carbonate
Portland cements
Surface area
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Zusammenfassung:Portland cement containing a fixed amount of mineral admixtures (calcium carbonate or dolomite or magnesite) was hydrated at 60 degree C for 7- and 28 days. Phase compositions were evaluated by thermogravimetric analysis and by powder X-ray diffraction. Measurements of surface area indicated the development of the hydrated microstructure. Detailed analysis of DTG decomposition profiles of portlandite and carbonate enabled the evaluation of certain admixture-related parameters concerning portlandite formation and also indicated the behavior of specific carbonates during the hydration process.
ISSN:1318-0207