The calibration measurement capability - CMC is defined as the smallest uncertainty that a laboratory can achieve within its powers when carried out more or less daily calibration of nearly ideal measurement standards intended to define, generate, keep or renew units of that size, or one or more of its value, or when carried out more...

By Branka Muminović, Mirsada Oruč, Almaida Gigović-Gekić, Raza Sunulahpašić

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By Mohammad Safi

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 practical objective of this paper was based on improving the cleanliness of forging ingots, improving the ingots yield by the reduction of ingot head, taking the example carbon steels produced in Steelwork Zenica In that sense, the modification of existing technologies has been done in the segment of secondary metallurgy dur...

By Omer Kablar, Aida Mahmutović, Menzur Plaćo, Šaban Žuna

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

In recent decades the production of chemically bonded refractory materials has been clearely increased. In this paper was examined the added amount effection of 50% solution of mono aluminum phosphate (MAP) as a binder in refractory concretes. Quartz, sand and chamotte are used as fillers. Research has shown that the bond between the filler and the...

By Nadira Bušatlić, Ilhan Bušatlić, Mitar Perušić

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