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

The results of the comparative prediction of thermodynamic properties for Ga-Zn-Sn system are presented in this paper. Two thermodynamic predicting models were used for the calculation – one symmetrical (Muggianu), one assymetrical (Toop) model and general solution model. The calculations were done for different sections in exa...

By Ljubiša Balanović, Dragana Živković, Dragan Manasijević, Diana Ćubela, Tamara Holjevac Grgurić, Nada Štrbac, Aleksandra Mitovski

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

The material of journal end wall for cement mill is cast steel GS-20Mn5, WNo: 1.1120 according to standard DIN 17182. The journal end wall is made from two separately cast part - the plate and the cylinder, which are joined by welding. Inhomogeneity in the rough cast microstructure of materials, inadequate heat treatment of normalization, large non...

By Emina Kratina, Belma Fakić, Adisa Burić

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

Opencast mines are a part of the systems with the worst influence on all environmental components (air, water, ground, flora and fauna). In the case that we completely left out safeguards, dust emission would have a significant impact on the health of employees and the local population. Dust emission from quarries belongs to fugitive emissions and ...

By Šefket Goletić, Amina Ahmić

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

The goal of this paper is to present the experience in fire resistance testing of the self-supporting facade sandwich panels with sheet metal lining and PIR insulation, thickness 80 and 100 mm, that have been tested to the Standard Fire Curve ISO-834 as well as external fire curve, to the scientific and professional community in the field of expert...

By Edin Garaplija, Sanin Džidić, Vedran Avdić