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

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

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

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

The paper discusses the 3D printing technology and its impact on current industry practice. These are the advantages and the problems that must be solved to make this technology has become the new industry practices, as well as its impact on the development of materials for this technology with a special focus on metallic materials, respectively me...

By Diana Ćubela, Almaida Gigović-Gekić

The paper presents an application of the Additive Manufacturing (AM) technology using the Objet 3D Printer to develop femoral component of total knee endoprosthesis patterns for investment casting process. The goal of the paper is to outline the manufacturing technology intended for prototype production with the use of PolyJet technology and invest...

By Aleksandar Rajic, Slobodan Stojadinovic, Dorian Nedelcu, Ljubica Lazic Vulicevic

For the production of vertically perforated bricks with very good thermal insulation properties it is necessary to increase porosity of ceramic body. The most effective way to achieve this is the addition of organic substances into the clay mass. During the firing process combustion of these substances occures, leaving behind a large number of fine...

By Adnan Mujkanovic, Marina Jovanović

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