ASSESSMENT OF GYPSUM AND LIMESTONE ROCKS FROM FAT’HA FORMATION (M. MIOCENE) FOR MAKING WALLBOARD IN THE MAKHMUR AREA – NORTHERN IRAQ

  • AMEER HAYDER KHALID Dept. of Geology , College of Science ,University of Duhok
  • ALI SALIM AL-QASSAB Dept. of General Sciences , College of Basi cEducation ,University of Mosul-Iraq
Keywords: Gypsum, Fat'ha Formation, Makhmur Area, Plaster of Paris, Wallboard.

Abstract

Five samples of gypsum and one sample of limestone were collected from an outcrop in Qara Chugh Anticline. The samples of gypsum were analyzed chemically before and after calcination. The purity of the samples of gypsum and limestone was calculated and the (H2O+) content of the calcined samples of gypsum was determined. The physical and mechanical properties of plaster of Paris produced from calcining the samples of gypsum were tested according to the Iraqi and American Standards. A wallboard sample was made using basic materials according to the American Standard. The chemical analyses of the samples of gypsum and plaster of Paris conform to the Iraqi and American Standards. The Fat'ha Formation rocks in the Makhmur area are suitable for making wallboard. The optimum conditions for calcining the studied gypsum rocks to produce plaster of Paris conforming to the standard specifications and suitable for the manufacture of wallboard are 130 °C for 1 hour.

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Published
2021-05-24
How to Cite
KHALID, A. H., & AL-QASSAB, A. S. (2021). ASSESSMENT OF GYPSUM AND LIMESTONE ROCKS FROM FAT’HA FORMATION (M. MIOCENE) FOR MAKING WALLBOARD IN THE MAKHMUR AREA – NORTHERN IRAQ. Journal of Duhok University, 24(1), 79-87. https://doi.org/10.26682/sjuod.2021.24.1.10
Section
Pure and Engineering Sciences