Thermal characteristics study of light aggregate concrete of the middle Atlas pozzolana

Abstract

We present in this work an experimental study of the thermomechanical characterization of pozzolan (volcanic rock widespread in the region of Azrou in the Middle Atlas in Morocco). The objective of this work is to evaluate the effect of the pozzolan on the thermal conductivity of pozzolanic concrete by using different concrete formulations and this, by substituting various percentages of gravel and usual sands with gravel and sand of the pozzolan. The thermal properties of the samples consist to determine the thermal conductivity and the heat capacity. The results obtained show that the pozzolan is a local material with a high thermal resistance and can be used as a good insulated material in heat transfer and energy efficiency in the building.