Engobed ceramic brick used in the energy and resource-saving technologies of the construction industry
Olena Khomenko1 (orcid id: 0000-0002-3753-3033)
Nataliia Sribniak2 (orcid id: 0000-0003-3205-433X)
Adam Ujma3 (orcid id: 0000-0001-5331-6808)
1 Ukrainian State University of Chemical Engineering, Ukraine
2 Sumy National Agrarian University, Ukraine
3 Czestochowa University of Technology, Poland
DOI: 10.17512/bozpe.2023.12.18
Article (PDF)
KEYWORDS
сeramic brick, engobe, burning, water absorption, thermal conductivity
ABSTRACT
The article discusses the production and role of engobed bricks in the construction industry in view of the global trend towards resource and energy conservation. Standard methods for determining properties, as well as X-ray fluorescence, dilatometry, thermal and petrographic analyses, were used in the study. It has been established that for samples of ceramic bricks fired at 950-1000°C, the application of an engobic layer reduces the water absorption of the front surface from 14.5-1.2% to 6-2% and masks the undesirable colour. This makes it possible to use cheaper raw materials for brick production. The thermal conductivity of engobe bricks decreases from 0.48 to 0.43 W/(m·K), which opens up broad prospects for further development of energy-efficient coatings. An engobe was found to be optimal when produced with the following set of properties, wt.%: refractory clay – 65; quartz sand – 10; container glass – 25.
Politechnika Częstochowska uczelnią dostępną.
