UNICAL DRAIN SPORT - Перmeable concrete for draining sub-bases for sports facilities

UNICAL DRAIN SPORT has been formulated for draining sub-bases of areas dedicated to recreational sports activities.‎ The surface evenness and stability against alternative solutions, such as ballast, make them effective as permeable roofing substrates.‎ Performance references In this concrete, hydraulic parameters such as porosity and permeability are considered fundamental for the application, although its characteristic values are more than sufficient for the type of application.‎ The choice of fine aggregate guarantees flatness and dimensional stability to the permeable roofs on which play and sports activities take place.‎ The UNICAL DRAIN SPORT formulation is suitable for any type of application: with a vibratory paver, with rollers and with a mechanical screed and trowel.‎ The maintenance of workability is on average sufficient for any type of product application.‎ The Unical Drainage Concrete DRAIN Although not one of the newest construction technologies, drainage concrete is experiencing renewed interest, especially among administrations, which are increasingly committed to sustainable stormwater management.‎ The high water flow rate, which can drain through the porous matrix of the material, allows rainfall to be captured and percolate into the ground.‎ This results in a number of benefits.‎ The most significant of these are the recharge of the water table, improvements in the quality level of the water returned to the water body, and a reduction in the runoff of rainwater from impermeable surfaces in metropolitan areas into watercourses during increasingly intense rainfall events.‎ The drainage pavement and ballast can act as a useful lamination reservoir to compensate for the considerable difference in permeability between the pavement and the underlying soil.‎ Their porosity therefore allows water from the most intense meteorological events to be stored and then reintegrated.‎ All these hydraulic advantages are obtained against a floor bearing capacity that cannot be found in any other similar solution, such as, for example, draining ballast.‎ However, to achieve these results, it is necessary that the construction details are carefully carried out at the construction site and the laying methods adhere to the design specifications.‎ Advantages of drainage pavements Appropriate design of Unical DRAIN drainage concretes gives them the following characteristics.‎ Permeability: is the volumetric flow rate of water that passes through the surface unit of a draining concrete slab in the unit of time: it is an index of its ability to allow the infiltration of water from intense meteorological events.‎ Load-bearing capacity: this is the capacity of the floor system to bear the loads on it which, in turn, is a function of the substrate, thickness and flexural strength of the draining concrete slab.‎ Porosity: represents the amount of voids within the drainage concrete floor slab: it is an indication of its ability to act as a storage layer.‎ Pollutant removal: drainage pavement systems have a considerable capacity to remove pollutants that rainwater intercepts on the surfaces over which it drains.‎ Mitigation of the urban heat island: drainage concrete improves thermo-hygrometric conditions, decreasing the heat island effect typical of densely populated urban areas.‎ Colouring: drainage concrete can be pigmented throughout the entire thickness of the pavement by colouring the paste that surrounds the aggregates.‎ This feature gives the product a uniform colour.‎ Architectural finish: with a particular workmanship on site, it is possible to obtain a surface in keeping with a rural context given the changing colouring of the aggregates on sight.‎ Photoluminiscent finish: it is possible to achieve an attractive photoluminiscent finish thanks to the use of materials capable of emitting light at night after having absorbed light energy during the day.‎