Permanent formwork for realization of poured concrete staircase in swimming pool, has primary walls secured to secondary walls to brace and maintain primary walls in vertical position for forming compartments filled with poured concrete

摘要

The formwork (2) has primary walls (3) arranged vertically along parallel planes, and extending between fixed barriers (10, 11) of a swimming pool (1). Secondary walls (4) are interlaced with the primary walls, where the primary walls are secured to the secondary walls to brace and maintain the primary walls in vertical position and without spill over into a space that extends above top edges for forming compartments filled with poured concrete. The walls are made of polypropylene, polyethylene or PVC materials.