HEAT OF HYDRATION OF CEMENT AND SUPPLEMENTARY CEMENTITIOUS MATERIALS

Author

S. Athibharanan, U.Himakar , S.Dilleswar Rao , K.Jaswanth , T. Karthikeya , B. Abhivandana

Abstract

 The present work summarises the results of eleven research papers focused on the study of SCMs, hydration calorimetry, thermography, temperature estimation, and heat-control techniques in massive concrete. All the papers use adiabatic and semi-adiabatic testing, isothermal calorimetry, thermal analyses, field measurements, hydration models and machine learning methods. The obtained results show that SCMs such as fly ash, slag, ground bottom ash, silica fume, calcium silicate slag, and metakaolin can reduce the maximum temperature in concrete specimens or cumulative heat of hydration when replacing part of Portland cement, depending on the admixture, its fineness, and content. Moreover, the size of the specimens plays a vital role, as well as the temperature regime. Calorimetry and predictive tools based on hydration simulations appear to be useful in estimating the heat of hydration and temperature of a concrete structure. To control massive concrete structure’s thermal regime correctly, it is vital to consider the properties of cement binders.

Keywords

Heat of hydration, Supplementary cementitious materials (SCMs), Portland cement hydration, Silica fume, Metakaolin, • Calcined clay

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References

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