Method for providing artificial basins, swimming pools and the like

A method for providing artificial basins, swimming pools, the method includes the following steps:

• performing an excavation that corresponds to an artificial basin according to design specifications,
• providing a substrate, on surfaces of said excavation, said substrate chosen from a substrate made of nonwoven fabric, a substrate made of a material comprising silica, a substrate made of gravel, a substrate made of at least partially polymeric mineral material of non-organic origin, a substrate made of composite material, a substrate made of polymeric material, a substrate made of compacted soil/sand, and combinations thereof,
• arranging equipment and piping for supplying and discharging water on said substrate,
• distributing on the substrate and on overlying equipment and piping a first layer constituted by a mixture of water, mineral binder of non-organic origin, sand with low particle size value, and acrylic resin, in a percentage variable between 0% and 10% with respect to the non-organic mineral binder, adapted to render said first layer suitable for the adhesion of additional layers for lining,
• distributing a second layer, which is at least partially impermeable, constituted by a mixture of water, mineral binder of non-organic origin, sand with low particle size value, acrylic resin, in a percentage variable between 0% and 10% with respect to the non-organic mineral binder, fibers of silica, glass, and hemp, having a length comprised between 1.0 cm and 6 cm, and a material that allows shaping and has a low relative density, chosen from cork in chips, hemp fibers, natural fibers, and granules of expanded polymeric material,
• after consolidation of said second layer, shaping the surface of said second layer with abrasive tools and instruments, until the surface is rendered completely uniform and compliant with the design standards,
• spreading at least one third layer constituted by a mixture of water, mineral binder of non-organic origin, sand with low particle size value, acrylic resin, in a percentage variable between 0% and 10% with respect to the non-organic mineral binder, and at least one structural mesh made of fiber of silica, and glass, with at least unidirectional mechanical properties, and
• spreading a fifth layer, which is impermeable, constituted by a mixture of water, light-colored mineral binder of non-organic origin, silica sands with low particle size value, acrylic resin, in a percentage variable between 0% and 10% with respect to the non-organic mineral binder, and fibers of silica, glass, and hemp, having a length comprised between 1.0 cm and 6 cm.