This paper reviews the thermal properties of earth bricks, specifically examining research conducted between 2010 and 2020. The study focuses on key thermal properties, including thermal conductivity, resistance, diffusivity, effusivity, and transmittance, while also exploring the effects of additives on these properties. Findings from multiple studies are summarised, showcasing the performance of earth bricks across parameters like density, water absorption, and specific heat. The review highlights the promising thermal properties of earth bricks, making them suitable for sustainable building applications. However, it also identifies significant variations in thermal performance across different studies, primarily due to variations in soil type, additives used, and manufacturing processes. The paper concludes with suggestions for future research, emphasising the need for broader material performance metrics, the development of multi-functional earth bricks, the integration of computational models, comparisons with other sustainable materials, and the standardisation of testing protocols.
Rani et al. (Thu,) studied this question.