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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 science, University of Zenica , Zenica , Bosnia and Herzegovina
Faculty of engineering and natural sciences, University of Zenica , Zenica , Bosnia and Herzegovina
The effect of fly ash, coal dust and limestone on the properties of brick products are presented in this paper. Three kinds of clay were used to test the effect of additives. There were investigated the effect of additives on the behaviour of clays during drying and firing (shrinkage and loss of weight), and the properties of fired samples (rate of water absorption, water absorption, apparent density and apparent porosity). The samples were fired at different temperatures (850°C, 900°C, 950°C and/or 1050°C) in order to investigate not only the additives effect but also the firing temperature effect on the properties of fired products. Addition of all three types of additives gives the products that are less susceptible to drying and of increased porosity after firing which results in products of improved physical and thermal characteristics.
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