Chemical, Physical & Engineering study of the Properties of Calcined limestone and their improvement of the Characteristic and manufacturing uses

A. Al-Kawaz, Hazim

	Chemical, Physical & Engineering study of the Properties of Calcined limestone and their improvement of the Characteristic and manufacturing uses
Tikrit Journal of Pure Science
Article 1, Volume 16, Issue 2, 2011, Pages 272-283
Author
Hazim A. Al-Kawaz
Abstract
Compressive strength tests and density determination for limestone cubes of Fat'ha and Pelaspi Formations at Aqra ad Duhok localities have shown that cubes of Pelaspi Formation have higher compressive strength and higher density compared with those of Fat'ha Formation at both localities. The reason is possibly due to the higher contents of Dolomite in Pelaspi samples compared with higher Calcite in Fat'ha samples. This results was proved by chemical analysis of both types of rocks respectively. Chemical analysis of lime prepared from calcining both type of limestone (Pelaspi & Fat'ha) showed theat it consists of (97%) CaO were as it was only (55%) as maximum in uncalcined limestone of both type. There was an increase in compressive strength of the tested cubes prepared from a mixture of (30%) limestone and (70%) white cement. The mixture could be used as filler for flower ceramic and building stone. there was a noticeable increases in the compressive strength for the samples prepared for a mixture (30%) lime and (70%) white cement (Boorak) used for filling wall –cracks and flower ceramics. Water treated samples giver relatively higher compressive strength than air treated . the results also showed that there were an increasing in compressive strength for the cubes prepared from a mixture of (50%) white cement, (40%) powdered limestone (Ghabre) and (10%) sand. This mixture for the manufactured of special of inducting Thermostone.

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