Experimental Study of the Thermal Conductivity of Sand Soils of Different Dry Densities and Water Contents with the Needle Probe Method

Abstract

In this study, the thermal conductivity of formulated sand specimens was tested in laboratory with the needle probe method. The measurements represented that the thermal conductivity of sand soil increases corresponding increase of the dry density and water content. Based on the experimental measurement, an empirical equation has been proposed to characterise the relationship between the thermal conductivity and the dry density and water content. It has shown a good performance.