Abstract: The invention relates to a method of construction of concrete beams or walls using a formwork module comprising an elongate rectilinear front face, a peripheral border wall extending from the front face, two spaced pairs of bolt sockets extending through the rectilinear front face, and a plurality of opposed slots in the peripheral border wall.

Abstract: A frame unit (11) used in the construction of a formwork module. The frame unit (11) is formed by connecting together rectangular loops of wire (12, 13) to form a rectangular block shape. Panels (60) and reinforcement (16) are connected to the frame to make a formwork module, with the reinforcement (16) extending beyond the sides of both the frame unit (11) and the panels (60). When a number of modules are connected together to form formwork for the desired building structure, the reinforcement (16) overlaps to form a continuous line of reinforcement from one module to the next.