Show li t v. v EFFECTS OF STEEL reinforcement are shown clearly In thee these wall panels tested under high pressure during the current atomic tests In Nevada The Inch eight brick wall at left leU was forced while the other brick and tile walls wails of 01 the same asme thickness were ere reinforced with quarter-Inch quarter steel rods and survived the atomic blast Intact A 26 x foot 32 windowless brick structure r able as a school or utility shelter also was undamaged even event t ti t h ii It waa was exposed to blast pressures live five times those for lor which a bOWie bouse Is La normally built INTO irro Lookout Mountain Lab Photo |