Make racks, use the

With hardness, concrete carries pressure on the formwork with all weight, and, to maintain the stability of the structure, certain elements are used. For spacers and tightening the structure, bolts, wooden beams or reinforcement are used, using a step from 1.5 meters to to make racks, use the beam cross section with the expansion to the top. When arranging, a chess order is used with a distance of 1-2 meters. With an increase in the number of racks, the possibility of irregularities decreases.