This study has examined the process of sintering of Mg0 samples (80 % precipitation) obtained from seawater at a temperature of 1600 ºC with time until the sintering temperature is obtained, in order to examine their properties (density, porosity) and chemical composition after sintering. The prepared magnesium oxide samples are distinguished ...

By Miroslav Labor, Marina Perić, Jelena Jakić, Vanja Martinac

The impact of chemical corrosion on the durability of tundish working lining based on slurry mix is discussed in this work. The results of chemical and mineralogical analysis in the sample of tundish working layer after lining lifetime are presented. Infiltration of slag effected in a reduced thermal shock resistance resulting in thermal stress on ...

By Aida Mahmutović, Omer Kablar, Šaban Žuna

When considers about design/development of products then it must be objectify one of the following aspects, development of completely new products, development of new product lines, addition of existing product lines, improvements and revisions of existing products, repositioning and cost reduction. When you design a product, it is necessary to mak...

By Zehrudin Osmanović, Nedzad Haračić

In this paper the synthesis of nanoparticles of iron oxide from aqueous solution was carried at temperatures of 10, 20, 30, 40, 50 and 60 °C and with a different precipitation rate controlled by addition of a precipitating agent. The possibility of synthesis of ferrofluid with different ratios of reactants (FeCl2 and FeCl3 solution and NH4OH) w...

By Pero Dabić, Damir Barbir, Bruno Moranduzzo

One of the basic supplements that regulates the relationship between the base and acid components during the technological process of sintering is limestone (CaCO3). By adding the same will be made on a new phase in the sinter compounds that may have positive or negative effects on the quality of the same. To be able to fully monitor the phase tran...

By Amel Zahirović, Selvedin Hrustić, Farzet Bikić, Neven Ukrainczyk

The paper will present the experimental results of testing the mechanical properties of composite materials made of short and long glass fibers, or their combination. It will also present the results of pressure vessels’ hydro-testing, where the emphasis was put on the level of safety, i.e. the possibility of repair of pressure vessels made o...

By Mirzet Beganović, Fadil Islamović, Atif Hodžić, Esad Bajramović

The main characteristic of hydrotechnical cement, which is used to build massive structures, is the low heat of hydration. In this work is examined the effect of the electrofilter ash with a high content of calcium oxide addition on the hydration heat of Portland cement. The cement samples containing 0% to 50 % fly ash from TPP „Kakanj“...

By Ilhan Bušatlić, Nevzet Merdic, Nadira Bušatlić, Asim Ibrahimagić, Azra Smajić

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 i...

By Marina Jovanović, Adnan Mujkanovic, Mirsada Rizvanovic, Merima Brkić

This study is about possibility of the production of CEM I 52,5 in cementplant Kakanj satisfying some requirements for cement quality issued by EN 197-1. By EN 197-1, CEM I 52,5R consists of 95-100 % clinker and minor additional constituents of 0 - 5 %. Fly ash and granulated blast furnace slag are used as minor constituents in this study. The lowe...

By Ilhan Bušatlić, Nadira Bušatlić, Nevzet Merdic, Nedzad Haračić, Amila Music

In order to determine the possibility of using recycled aggregate for concrete production, properties of recycled aggregate and limestone aggregates: particle size distribution, oven-dried particle density, saturated and surface dried particle density and apparent particle density, water absorption, resistance to fragmentation and impact resistance...

By Adnan Mujkanovic, Marina Jovanović, Adela Telalović, Almir Bajraktarević, Adis Ćatić