Abstract: A construction block to be used with other similar blocks in order to construct panels of a building which is formed of a pair of substantially planar panels located in juxtaposition and spaced apart forming a space between the panel. Within the space between the panel, there is to be poured a quantity of uncured wet aggregate and cement mixture which is then to harden into a solid mass. Each of the panels is to be constructed of expanded polystyrene beads. The panels are secured together through a metallic tie rod assembly which is located principally in the space between the panels. The exterior surface of each of the panels includes a plurality of vertical grooves and within each groove is to be located a wooden strip which is to be penetrated by conventional fasteners to thereby mountingly secure a desired structural member onto an exterior surface of the construction block.

Abstract: A building block to be used in the construction of houses, buildings, gargages, sheds and the like, which is constructed of expanded, polystyrene beads. The building block is to be arranged with other similar building blocks in a vertically orientated, horizontally staggered relationship. Each building block is constructed of two parts which are adhesively secured together in a facing relationship. Each building block includes a pair of vertically aligned openings. When the building block is in the assembled, stacked relationship with other similar building blocks, there are a series of horizontally aligned openings to permit the conducting of rigid reinforcing rods between the blocks. Each building block includes within its upper surface and lower surface interlocking structure which is to interlock with other similar blocks when located in the stacked relationship.