Laboratory tests reveal that moisture content significantly influences thermal conductivity of fly ash, suggesting its use in geotechnical applications.
Fly ash, a by-product of coal combustion, represents both an environmental challenge and a potential resource for sustainable construction. This paper presents the results of laboratory investigations of the thermal conductivity of fly ash and an assessment of its possible application in geotechnical systems. The results show that moisture content has a dominant influence on thermal properties, while the effects of bulk density and curing are less significant. The measured values indicate that fly ash exhibits stable and consistent thermal behavior, suitable for engineered fills or soil-ash mixtures.
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Raković et al. (2025) studied this question.
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