Radiation distribution through serpentine concrete using local materials and its application as a reactor biological shield

► New serpentine concrete was made and examined as a reactor biological shield. ► Ilmenite-limonite concrete is a better reactor biological shield. ► New serpentine concrete is a better reactor fast neutrons shield than ordinary and hematite-serpentine concretes. ► Serpentine concrete has lower properties as a reactor total gamma rays shields.