Measurement of the Thermal Conductivities of Clay Materials Stabilized by a Mixed Binder

Abstract

This research work concerns the physical characterizations and the measurement of the thermal conductivities of clay materials stabilized by a mixed binder. At first, the different physical characterizations are carried out for the classification of the study material. Then, cylindrical specimens 7 cm in diameter by 7 cm in height are made with clay alone, specimens stabilized with 5% Gum Arabic, specimens stabilized with 5% cement, and also specimens stabilized with 5% cement and 5% Gum Arabic and finally specimens stabilized with the various binders mentioned above and reinforced with rice straw at a rate of 1%. The results show that the thermal conductivity value of 0.73 W/mK is for the 100% A formulation, the small thermal conductivity values ​​are obtained for the formulations 94%A+5%GA+1%P and 94%A+5%C+1%P. which are respectively 0.60 W/mK and 0.59 W/mK and finally, the high value of the thermal conductivity is 0.90 W/mK for the formulation 90% A+5% GA+5% C.