EVALUATION OF Al-AMIJ AND AL-HUSSAINIYAT CLAYSTONES (IRAQI WESTERN DESERT) FOR THE PRODUCTION OF POZZOLANA | ||
| Iraqi Bulletin of Geology and Mining | ||
| Article 1, Volume 8, Issue 1, April 2012, Pages 1-15 | ||
| Authors | ||
| a K. Ahmed; ; Malath Q. Abdul-Qadir; Dalya Kh. Al-Dahan; Firas F. Abdul-Hameed; Abdul Wahab A. Al-Ajeel | ||
| Abstract | ||
| Red kaolinitic claystone from Al-Amij and Al-Hussainiyat regions in the Western Desert of Iraq were evaluated for the production of artificial pozzolana as cement admixtures. Both claystones were calcined in the temperature range of (500 – 900)º C at 100º C interval, for 45 and 60 min duration. The chemical and mineralogical properties of both raw materials and calcined samples were studied; they display useful information that helps to predict the preparation of pozzolana from the claystone. The influence of the calcination temperature and time on pozzolanic activity index were found (as in ASTM C311) and discussed. The results obtained showed that the burning temperature and the duration of burning have significant effect on the activity of the produced pozzolana (calcined claystone). It was also found that the activity index of the pozzolana produced from Al-Amij claystone was higher than that produced from Al-Hussainiyat claystone. | ||
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