Penetration thermal post-combustion occurs in concrete can alter the chemical properties of concrete and of course, this directly affects the physical properties of the concrete is concrete performance in receiving compressive strength. This study was conducted with a sample in the form of a cube 15 cm x 15 cm x 15 cm with a W/C water factor variation Wateramong others are0:45, 0.5, and 0.6 0:5…