XXIX kongres DIMK i X kongres SIGP sa Međunarodnim simpozijumom o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija (2025) [pp. 490-497]
AUTHOR(S) / АУТОР(И): Nenad Ristić 
, Dušan Grdić , Zoran Grdić , Gordana Topličić – Ćurčić
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DOI: 10.46793/29DIMK.490R
ABSTRACT / САЖЕТАК:
The study explores the use of waste vitreous enamel as a partial cement replacement in concrete. It was found that the enamel exhibits strong pozzolanic activity, belongs to class 15 of pozzolanic materials, and meets the criteria related to the activity index test.. Concrete with up to 30% enamel replacement maintained acceptable compressive strength and improved workability. Although mechanical properties slightly decreased, durability remained unaffected. Concrete paving blocks incorporating 15% waste enamel also fulfilled quality requirements, with only a slight decrease in splitting tensile strength. The findings support the safe and practical reuse of vitreous enamel in construction materials, offering environmental and economic benefits. Overall, the study demonstrates that waste vitreous enamel can be effectively utilized in concrete without compromising structural integrity or durability.
KEYWORDS / КЉУЧНЕ РЕЧИ:
waste vitreous enamel, pozzolanic material, concrete, concrete paving blocks
ACKNOWLEDGEMENT / ПРОЈЕКАТ:
This research was supported by the Ministry of Science, Technological Development and Innovation of the Republic of Serbia, under the Agreement on Financing the Scientific Research Work of Teaching Staff at the Faculty of Civil Engineering and Architecture, University of Niš – Registration number: 451-03-137/2025-03/200095 dated 04/02/2025.
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