Utilizing Fuel and Energy Sector Waste as Thermal Insulation Materials for Technical Buildings

Artem Pavlychenko, Dariusz Sala, Michal Pyzalski (), Serhii Dybrin, Olena Antoniuk and Roman Dychkovskyi
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Artem Pavlychenko: Dnipro University of Technology, D. Iavornytskoho Ave. 19, 49-027 Dnipro, Ukraine
Dariusz Sala: AGH University of Krakow, A. Mickiewicza Ave. 30, 30-059 Kraków, Poland
Michal Pyzalski: AGH University of Krakow, A. Mickiewicza Ave. 30, 30-059 Kraków, Poland
Serhii Dybrin: Dnipro University of Technology, D. Iavornytskoho Ave. 19, 49-027 Dnipro, Ukraine
Olena Antoniuk: Ukrainian State University of Science and Technologies, 4 Gagarina Ave., 49-010 Dnipro, Ukraine
Roman Dychkovskyi: Dnipro University of Technology, D. Iavornytskoho Ave. 19, 49-027 Dnipro, Ukraine

Energies, 2025, vol. 18, issue 9, 1-18

Abstract: The growing demand for sustainable construction materials has prompted intensive research into the potential reuse of waste from the fuel and energy sector as effective thermal insulation materials. This study examines the feasibility of utilizing ash–slag mixtures, fly ash, and aluminosilicates as insulation materials for technical buildings. These materials were selected due to their availability and potential to improve energy efficiency in construction. Practical tests were carried out to determine the thermal conductivity coefficients of various samples, which were produced using different cement mixtures as binders to ensure adequate structural strength. The results demonstrated that the use of industrial waste-derived materials not only provides satisfactory thermal insulation properties but also contributes to environmental sustainability by reducing the challenges associated with the disposal of industrial by-products. The study highlights the crucial role of cement as a binder, enhancing the mechanical strength and durability of the insulation samples. The integration of ash–slag mixtures, fly ash, and aluminosilicates into the construction sector may foster the adoption of more environmentally friendly building practices, thereby supporting a circular economy and mitigating the environmental impact of construction activities. The study showed that the lowest thermal conductivity coefficient (0.24 W/m·K) was achieved for mixtures containing fly ash and cement, while the highest value (0.30 W/m·K) was recorded in samples incorporating aluminosilicates. The obtained results confirm the effectiveness of fly ash as a cost-efficient additive that improves the thermal insulation properties of the material.

Keywords: sustainable technologies in buildings; thermal insulation materials; fuel and energy sector waste; circular economy; energy efficiency in buildings; construction process management; zero energy buildings; building energy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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