The sandy soil and cement were measured in simple ratio of 3 to 1 thoroughly mixed before the water was added to form concrete. The cement-concrete was molded into a circular disc, dried to constant mass and carefully shaped with a diameter, d(110.0 mm) and thickness x (6.0 mm). The thermal conductivity of each sample was determined using Lee's apparatus(Nelkon and Ogborn, 1985; Ekpe and Akpabio, 1994; Alausa et. al., 2011). Each sample in turn was sandwiched between the cylindrical hollow brass base and brass slab; and the arrangement was fitted to the steam chest of Lee's apparatus. Steam was passed into the apparatus and temperatures T1(C) of the brass slab and T2(C) of the brass base were recorded at steady state. The experiment was repeated three times and the mean temperatures T1 and T2