Abstract
Hydration of triclinic tricalcium silicate (C3S) blended with three different natural clays was investigated in this work. Pure C3S, C3S blended with metakaolin and fine quartz was used as references. Blends were made with 1:2 ratio of calcined clay/quartz and C3S. A water-to-solid ratio of 2/3 was used. The samples were cured at 20 °C for 7 days of hydration. The total heat release was measured using isothermal calorimetry, and the degree of hydration of C3S was determined using XRD/Rietveld analysis and portlandite content using TGA analyzed by tangent method. The results show that there is a higher heat release with higher kaolinitic content. The degree of hydration of C3S in blends with calcined clay was found to be lower after 7 days of hydration compared to the reference systems.
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Joseph, S., Khalifa, A., Cizer, Ö. (2020). Hydration of Tricalcium Silicate Blended with Calcined Clay. In: Bishnoi, S. (eds) Calcined Clays for Sustainable Concrete. RILEM Bookseries, vol 25. Springer, Singapore. https://doi.org/10.1007/978-981-15-2806-4_49
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DOI: https://doi.org/10.1007/978-981-15-2806-4_49
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