Влияние термической обработки на пуццолановую активность глинистых минералов

Authors

  • Lola Baltamuratovna Kabulova

    Nukus State Pedagogical Institute named after Ajiniyaz image/svg+xml

  • Jursinay Muratbay qizi Temirbayeva

    Nukus State Technical University

Keywords: cement, clay minerals, kaolinite, montmorillonite, tuffite, thermal activation, pozzolanic activity

Abstract

The article investigates the influence of thermal treatment on the pozzolanic activity of clay minerals of interest to the cement industry. The structure and properties of the main minerals of clay rocks are analyzed, and the mechanisms of thermal activation and changes in mineralogical phases during heating are described. Methods for assessing pozzolanic activity, including both direct and indirect approaches, are considered. Special attention is given to minerals of the kaolinite and montmorillonite groups, as well as to opoka-like tuffite rocks, which exhibit the highest reactivity after thermal treatment. Conclusions are drawn regarding the feasibility of using thermally activated clays in low-clinker cements, which helps reduce CO emissions.

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