HEAT-INSULATION BUILDING BLOCK

摘要

Heat-insulation building block consists of two reinforced-concrete plates connected to each other with end and inner ribs of plates with equal height with parallel-sided surfaces at ends and heat-insulation layer between those. The upper plate has at edge closed in perimeter rectangular boss with parallel-sided surface and long rib at middle, and the lower plate has at edge closed in perimeter rectangular boss with long groove-slot at middle of parallel-sided surface of boss.