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The effect of C3S on the early hydration of C3A

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Abstract

The hydration of C3A, C3S and C3A+C3S mixtures was examined by thermogravimetry, differential thermogravimetry and calorimetry. The results showed the early hydration (15 min) of C3A+C3S is of two types: If the content of C3S<40%, then C3A hydrates as it does alone, but if the content of C3S≥40%, then the hydrate with the lowest temperature and the cubic one do not appear together up to 15 min.

Zusammenfassung

Mittels Thermogravimetrie, Differentilthermogravimetrie und Kalorimetrie wurde die Hydration von C3A, C3S und C3A+C3S-Gemischen untersucht. Die Resultate ergeben zwei Arten einer frühzeitigen Hydration (15 min) von C3A+C3S: liegt der C3S-Gehalt unter 40%, hydratiert C3A allein, beträgt der C3S-Gehalt jedoch mindestens 40%, dann treten das Hydrat mit der niedrigsten Temperatur und das kubische vor Ablauf von 15 min nicht gemeinsam auf.

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  1. Section Physique Chimie, C. P. R. Rabat Souissi, B. P. 5517, Rabat, Maroc

    E. El Aouni

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  1. E. El Aouni
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Aouni, E.E. The effect of C3S on the early hydration of C3A. Journal of Thermal Analysis 45, 1349–1357 (1995). https://doi.org/10.1007/BF02547429

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  • DOI: https://doi.org/10.1007/BF02547429

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