There are two standard block types that create straight walls, corners, angles, curves, slopes, and brick ledges:
Units are 9 5/8′ wide x 48″ long x 12″ high with a SIX Inch Core encapsulated by EPS foam. Each block weighs three pounds, and provides four square feet of wall surface. The block is symmetrical top to bottom and end for end so that they interlock much like a “Lego” toy, and without regard to orientation. Steel reinforcement is placed at vertical and horizontal spacing according to specifications of the prevailing code or the engineer of record. The structure is one of reinforced concrete vertical columns and horizontal beams similar in structure to columns and beams in high rise structures, bridges, wood framed studs and plates, and CMU structures.
Reddiform is an engineered system which can be designed to perform up to the level of 12″ concrete walls by adding additional rebar. The strength of a concrete wall is from the rebar. This ICF is specified and approved in the International Residential Code (IRC).
In-depth specifications and details are available in the Reddiform Construction Manual.