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The mineralogy and chemistry of cement and cement raw materials In the united arab emirates
(
Qatar University
, 1996 , Article)
The raw materials, clinkers and cements from different cement factories in the United Arab Emirates have been investigated using polarizing microscopy, X-ray diffraction (XRD), Scanning electron microscopy (SEM), and ...
Mineralogy, petrography and manufacturing of good quality Blackboard chalk
(
Qatar University
, 1996 , Article)
Most of the Arabian countries produce bad quality and dusty blackboard chalk. Good quality and dustless blackboard chalk are usually imported from Europe, China, Taiwan and the United States of America. The essential raw ...