Patent attributes
An architectural building block system including a block having three side walls, each having an inside surface and an outside surface, the three side walls cooperate to form a triangular tube having three corners, the outside surface of each of the three side walls extending outwardly from the inner surface to the outer surface and the inside surface of each of the three walls is disposed substantially at right angle to each of the inner surface and the outer surface; and three channel pairs, each configured to receive a rebar, each channel pair including a first channel disposed on one of the three side walls on the inner surface and a second channel disposed on a corner of the three corners that is opposingly disposed from one of the three side walls.