Venue: Baška, island of Krk, Croatia
Date: 6–10 September 2026
Organiser: Croatian Society for Geometry and Graphics
Poster: “Geometric Characterisation of Recycled Crushed Brick Aggregate in Sustainable Concrete”
Authors: Marijana Hadzima-Nyarko, Silva Lozančić, Antonija Ereš, Josip Radić, Daniela Đikanović
At the 6th Croatian Conference on Geometry and Graphics, held from 6 to 10 September 2026 in Baška on the island of Krk, researchers from the Faculty of Civil Engineering and Architecture Osijek presented a poster entitled “Geometric Characterisation of Recycled Crushed Brick Aggregate in Sustainable Concrete”. The authors are Marijana Hadzima-Nyarko, Silva Lozančić, Antonija Ereš and Josip Radić from the Faculty of Civil Engineering and Architecture Osijek, and Daniela Đikanović from the Institute for Multidisciplinary Research, University of Belgrade. The results were obtained through the research activities of the IM4StEM project.
Waste generated by construction, demolition and damage to buildings can be processed into a secondary mineral resource. Crushed brick aggregate can partially replace natural sand in cement composites, but its angular shape, rough surface and internal porosity affect workability, microstructure and final material performance. The aim of the research was to relate the geometry of the recycled aggregate and the composite microstructure to the fresh- and hardened-state properties of micro-concrete.
The research showed that particle morphology, spatial distribution and pore structure link the geometry of recycled aggregate with the microstructure and macroscopic behaviour of sustainable cement composites. Participation in the conference enabled the presentation of the results of the IM4StEM project in the interdisciplinary setting of geometry and graphics, highlighted the application of geometric characterisation and image processing in construction materials research, and contributed to the sharing of knowledge on the reuse of construction waste.
