METHODS FOR STRUCTURAL CONDITION ASSESSMENT AND PROOF LOAD TESTING: A CASE STUDY OF THE CAMPUS GARAGE AT THE UNIVERSITY OF BANJA LUKA
This paper presents a comprehensive condition assessment of the campus garage at the University of Banja Luka. The assessment methodology included visual inspections, non-destructive testing (NDT) of concrete using rebound hammer and ultrasonic pulse velocity methods, and proof load testing of the primary roof truss. Deformations were monitored usi...
By Sanja Kizić, Anđelko Cumbo, Gordana Broćeta, Marina Latinović Krndija, Gordana Jakovljević, Slavko Vasiljevic, Aleksandar Savić, Filip Marin, Žarko Dabić, Ognjen Mijatović
APPLICATION OF GROUND-PENETRATING RADAR (GPR) SCANNING TECHNOLOGY IN THE INSPECTION OF CONCRETE STRUCTURES
In this paper, the authors address the inspection of concrete structures using ground-penetrating radar (GPR) scanning technology. The main idea is focused on the inspection of a concrete structure for the purpose of detecting reinforcement or objects with a circular cross-section. The analysis includes both dry and wet concrete, as well as metalli...
By Miloš Marković, Aleksandar Savić, Anja Terzić
EXPERIMENTAL INVESTIGATION OF THE RELATIONSHIP BETWEEN BUBBLE MORPHOLOGY AND ABRASION RESISTANCE OF FOAMED CONCRETE
Abrasion resistance is a critical durability parameter of foamed concrete applied in floor screeds and wear - exposed surface layers. Owing to its cellular structure, abrasion performance depends on bubble morphology, including size, distribution and uniformity. This paper presents an experimental study combining high - magnification microscopy wit...
By Ehsan Kiana, Aleksandar Radević, Aleksandar Savić, Mohsen Kiana, Gordana Broćeta, Nenad Ivanisevic, Mahdi Kiana
EFFECT OF THE HRWRA QUANTITY ON DURABILITY PROPERTIES OF SELF-COMPACTING CONCRETE
The paper presents the results of our own experimental research on the effect of the high range water reducing admixture content – HRWRA (applied in the range from 0.8 to 1.2% by mass of cement – mc) on the properties of self-compacting concrete in the fresh and hardened state. The research showed that increasing the HRWRA content lead...
By Jovan Volaš, Gordana Broćeta, Marina Latinović Krndija, Slobodan Šupić, Vladan Pantić, Mirjana Malešev, Vlastimir Radonjanin, Anđelko Cumbo, Aleksandar Savić, Žarko Lazić, Draženka Lozo
THE EFFECT OF THERMAL TREATMENT ON MECHANICAL AND DEFORMATION PROPERTIES OF STEEL REINFORCEMENT
Presented research was intentioned to clarify the effects of thermal treatment (ageing) of reinforcing steel products on their mechanical and deformation properties. In order to determine the effect of temperature, samples were exposed to room temperature (reference samples) and a temperature of 100 °C in duration of 30, 60 and 120 minutes, res...
By Marija Mirković, Aleksandar Radević, Dimitrije Zakić, Aleksandar Savić, Marina Askrabić, Dragica Jevtić
EXPERIMENTAL INVESTIGATION OF SCC WITH RECYCLED RUBBER AND RECYCLED CONCRETE AGGREGATE
The replacement of natural aggregates (NA) with alternative aggregates in concrete can contribute to the sustainable development of the construction industry. This paper aims to present research investigating the effects of recycled concrete aggregate (RCA) and crumb rubber (CR) utilization on the performance of Self-Compacting Concrete (SCC) mixtu...
By Marko Popović, Aleksandar Savić, Gordana Broćeta, Branko Borozan, Mihailo Štavljanin