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Chemical engineering, Faculty of Technology, University of Tuzla , Tuzla , Bosnia and Herzegovina
Environmental engineering, Faculty of Technology, University of Tuzla , Tuzla , Bosnia and Herzegovina
Lukavac Cement d.o.o. , Lukavac , Bosnia and Herzegovina
AD HARBI d.o.o , Sarajevo , Bosnia and Herzegovina
The aim of this work was to examine the possibility of stabilizing red mud with a natural mineral, namely pyrophyllite shale, to the extent that it is not harmful to the environment, as well as the use of such a stabilized composite for the production of building materials such as bricks, in order to ultimately achieve a complete circular economy, where on the one hand there would be the utilization of waste material, the preservation of the environment and natural resources, and on the other hand, the production of products of the same quality.
Based on the set goal, the results for the composition of red mud and pyrophyllite shale as well as the stabilized composite before and after thermal treatment at 900 °C are presented in the work, and they show that there is a decrease in the proportion of all oxides present in the mixture except silicon, because it is over 63% in pyrophyllite shale. Based on the stabilized composite, building block samples were formed. After the firing process, the samples cracked, and as such they could not be analyzed further. Based on this, it could be concluded that only stabilized composite cannot be used to make bricks.
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