The elements such as columns, beams, lintels and slab, carry a steel structure, which combines with concrete, to form Reinforced Concrete. The columns are armed with the plate, so that they are tied to it when the concreting is carried out. Then, after placing the blocks, the columns, beams, lintels and slab are shuttered with wood and the concrete is poured. The forms are the molds that contain the concrete in its curing.