Building wall construction

A fastening and positioning member for use in combination with a hollow wall comprised of a first wall panel formed from building blocks arranged in overlapping superposed courses, and a second wall panel formed from building blocks arranged in overlapping superposed courses, said first and second wall panels extending substantially parallel to each other in spaced relation, said building blocks each having grooves extending longitudinally of an upper edge surface thereof and longitudinally of a lower edge surface thereof in a position registering with corresponding grooves in a next adjacent said building block, and at least one channel extending longitudinally between side edges of each said block at a position intermediate said upper and lower edge surfaces thereof on a side face of said block to be mutually presented to a corresponding side face of a said block in an opposite one of said first and second panels, said fastening positioning member comprising:

• an axially elongate member providing a first body member terminating at opposite longitudinal edges thereof in oppositely extending hook members receivable within a said groove of a selected one of said building blocks;
• and,
• second body members integral with said first body member and extending at an angle to said first body member, said second body members respectively terminating at a free edge thereof in a hook member receivable in a said channel in a said side face of an associated said block;
• said first body member providing for proper spacing of said first and second panels relative to each other, and said second body members being operative to prevent movement of associated said building blocks relative to each other, and transmit compressive stresses in said second body member into a compressive stress in said first body member.