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Calorimetry in the studies of cement hydration

Setting and hardening of Portland cement–calcium aluminate cement mixtures

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Abstract

Calorimetry was applied to an investigation of the early hydration of Portland cement (PC)–calcium aluminate cement (CAC) pastes. The heat evolution measurements were related to the strength tests on small cylindrical samples and standard mortar bars. Different heat-evolution profiles were observed, depending on the calcium aluminate cement/Portland cement ratio. The significant modification of Portland cement heat evolution profile within a few hours after mixing with water was observed generally in pastes containing up to 25% CAC. On the other hand the CAC hydration acceleration effect was also obtained with the 10% and 20% addition of Portland cement. As one could expect the compressive and flexural strength development was more or less changed—reduced in the presence of larger amount of the second component in the mixture, presumably because of the internal cracks generated by expansive calcium sulfoaluminate formation.

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Authors and Affiliations

  1. Faculty of Material Science and Ceramics, University of Mining and Metallurgy, al. Mickiewicza 30, 30-059, Kraków, Poland

    Marek Gawlicki & Wiesława Nocuń-Wczelik

  2. Alpol Gips Ltd., Fidor, 26-200, Końskie, Poland

    Łukasz Bąk

Authors
  1. Marek Gawlicki
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  2. Wiesława Nocuń-Wczelik
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  3. Łukasz Bąk
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Correspondence to Wiesława Nocuń-Wczelik.

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Gawlicki, M., Nocuń-Wczelik, W. & Bąk, Ł. Calorimetry in the studies of cement hydration. J Therm Anal Calorim 100, 571–576 (2010). https://doi.org/10.1007/s10973-009-0158-5

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  • DOI: https://doi.org/10.1007/s10973-009-0158-5

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