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Studies on thermal transformations and pozzolanic activities of clay from Jammu region (India)

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Abstract

Clay from the Nagrotta area of Jammu (J & K State, India) was calcined at various temperatures. The products were analysed by X-ray diffraction. The mode of loss of hydroxyl group from the structure with respect to temperature is discussed. The results were supplemented by differential thermal analysis. The calcined products were subjected to lime reactivity tests and the data obtained were correlated with those of the above study to investigate the pozzolanic activity at various temperatures.

Zusammenfassung

Tonerde, stammend aus dem Gebiet Nagrotta in Jammu (Staat J&K, Indien) wurde bei verschiedenen Temperaturen kalziniert und die Produkte mittels Röntgendiffraktion untersucht. Die Art und Weise des Verlustes an Hydroxylgrouppen in Abhängigkeit von der Temperatur wurde besprochen. Die Untersuchungsergebnisse wurden mittels Differentialthermoanalyse ergänzt. Die Kalzinierungsprodukte wurden Kalkreaktivitätsuntersuchungen unterzogen und die Ergebnisse mit denen der obigen Untersuchungen verglichen, um die Puzzolan-aktivität bei verschiedenen Temperaturen zu untersuchen.

Резюме

Глина из месторожден ия Джамму (Индия) была подвергнута обжигу п ри различных температурах, а проду кты обжига были изуче ны рентгенофазовым ана лизом, обсужден ход реакции дегидроксил ирования в зависимос ти от температуры. Результ аты были дополнены дифференциальным те рмическим анализом. П родукты обжига были подвергн уты тестовым испытаниям с известь ю. Полученные при этом данные были скоррелированы с вышеприведенными ис следованиями спекае мости при различных температу рах.

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Authors and Affiliations

  1. Regional Research Laboratory, Jammu Tawi, India

    R. A. Sayanam, A. K. Kalsotra, S. K. Mehta, R. S. Singh & G. Mandal

  2. Indian Institute of Technology, Powai, Bombay-76

    R. S. Singh & G. Mandal

Authors
  1. R. A. Sayanam
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  2. A. K. Kalsotra
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  3. S. K. Mehta
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  4. R. S. Singh
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  5. G. Mandal
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Additional information

The authors are grateful to the Director, Regional Research Laboratory, Jammu, for permission to publish this paper. Thanks are also due to Sh. H. C. Gupta for typing the manuscript.

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Sayanam, R.A., Kalsotra, A.K., Mehta, S.K. et al. Studies on thermal transformations and pozzolanic activities of clay from Jammu region (India). Journal of Thermal Analysis 35, 99–106 (1989). https://doi.org/10.1007/BF01914268

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  • DOI: https://doi.org/10.1007/BF01914268

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