Block

The utility model provides a block composed of two staggered hollow block bodies. Foam concrete is filled in cavities of the overlaid hollow block bodies, and overlaid portions are provided along a horizontally extending direction of the hollow block bodies. The block is arranged in a staggered structure, so that heat transferring distance of the block ends of the block is greatly extended, cold and heat bridges in the block are extended, and thermal insulation property of the block is improved; the foam concrete is filled into the hollow block bodies simultaneously, and the thermal insulation property of the block is further improved; and a heat transferring channel is blocked in a vertical direction of a wall.