Zeolite (clinoptilolite) is mainly natural volcanic porous tuff and it has strong absorption ability, large specific surface area and lightness. The concrete has been produced using in the rate of 0, 5, 10 and 15% zeolite as an aggregate in the concrete. In the mixing, water to cement ratio was kept at 0.50. The thermo-mechanical properties of the concrete have been measured. It has been found that thermal conductivity has decreased with the zeolite in concrete but compressive strength increased with the increasing zeolite rate in the concrete.