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FACULTY OF ENGINEERING AND NATURAL SCIENCES, University of Zenica , Zenica , Bosnia and Herzegovina
FACULTY OF ENGINEERING AND NATURAL SCIENCES, University of Zenica , Zenica , Bosnia and Herzegovina
FACULTY OF ENGINEERING AND NATURAL SCIENCES, University of Zenica , Zenica , Bosnia and Herzegovina
FACULTY OF ENGINEERING AND NATURAL SCIENCES, University of Zenica , Zenica , Bosnia and Herzegovina
A coal dust is added to brick clay mainly to save energy and increase porosity. This paper examines the influence of coal from Coal mine "Kakanj", in the amount of 10% and 20%, on some physical and technological properties of brick clay "Rapajlo". The impact of coal on the plasticity of clay, and the characteristics of dried and fired samples was investigated. The coal reduces the plasticity of clay and its sensitivity to drying, and increases the porosity, rate of water absorption and water absorption of fired products.
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