Refractory demand is driven by growth in emerging markets, new processing technologies and products in the customers industries mainly iron and steel, cement, lime, non-ferrous metals, glass, environmental, chemical and energy industry. The need for high-quality refractory solutions for particular applications is steadily rising. Ste...

By Christian Majcenovic

This paper examines the impact of charging wet and oxidized material on the quality of cast iron, quality SL20. In consideration were taken the same products obtained from 3 melts. For the production of the first melt wet and oxidized charging components in quantity of 60 % were used, for the second one quantity of 20 % of oxidizied ...

By Ajla Huseljić, Aida Mahmutović, Hasan Avdušinović

Ductile iron is a pseudo-binary alloy of iron and carbon where the carbon is precipated in the form of nodules (spherical) graphite. The ductile iron, thanks to the specific form of graphite, has a good combination of properties such as elongation, yield strength, good toughness, castability and mechanical workability. Except of grap...

By Almaida Gigović-Gekić, Emana Đananović, Hasan Avdušinović

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 samp...

By Marina Jovanović, Adnan Mujkanović, Erna Tutić, Vedija Karalić

For the production of self-compacting concrete for a specific application, with desired properties in fresh and hardened state, it is necessary to combine the constituent materials in the optimum proportions. The proportioning of self-compacting concrete has to start with defining the required properties. For a particular application, a self-compac...

By Adnan Mujkanović, Ilhan Bušatlić, Marina Jovanović, Dženana Bečirhodžić

The paper presents preliminary analysis of the impact of the season and time of day on the content of benzene, toluene, ethylbenzene and xylene in the air of the city of Zenica. This analysis is carried out on the basis of data on the measurement of concentrations of benzene, toluene, ethylbenzene and xylene downloaded from the Metallurgical Instit...

By Farzet Bikić, Asim Ibrahimagić, Hasnija Berbić, Halim Prcanović

Modern hydraulic binder Portland cement (PC) was before, and it remains today one of the most popular and widely applicable building materials, that is, considering the amount of production, the first in the world among industrial products. Conserving natural resources and environmental protection have led the cement industry to beco...

By Jelica Zelić

This paper describes the behavior of welded steel components NN-70 in the presence of defects such as cracks in the operation of variable load. Knowing the conditions under which the particular construction operates and knowing the welding technology of the same, we can solidly calculate and assume the remaining life of exploration. By assessing th...

By Dženana Gačo, Zijah Burzić, Fadil Islamović, Nermin Bišćević

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

Standard ISO-834 five curve does not represent any real fire situation, but exists in fully controlled laboratory standardized test conditions only. Parametric five curves take in consideration size and geometry of the fire compartment, probability of fire appearance, fire spread and duration, density and arrangement of fire load, importance of the...

By Sanin Džidić