DPS is specially designed to evacuate water flows that are hundreds of times higher than those collected during episodes of torrential rain, since filtration occurs through the mass of the concrete pavement, and through the joints between the pieces responding simultaneously to the vertical flow of rain and the horizontal flow of runoff.
The void volume provided by the Hidrocell polymer cell network gives DPS a water retention capacity under its surface of 50 l/m2, which can be multiplied by the superposition of additional cells.
Due to their two-layer design, ecoDraining concrete slabs have an anti-siltation function, with their upper layer acting as a sieve to prevent the lower layer from saturating. The geotextile performs similarly with respect to the siltation that could occur through the joints.
ecoDraining also has the capacity to eliminate atmospheric pollutants such as nitrogen oxides (NOx) volatile organic compounds (VOCs) and particulate matter (PM), being class 3 according to UNE 127197-1 2013, certified by APPLUS. Therefore, the system purifies and filters the water that infiltrates to the soil.
The perfect fit between all its elements, both vertically and horizontally, makes DPS work as a single entity, with a cohesion and mechanical characteristics far superior to those of each part separately.
Rainwater management at source
DPS reduces large water floods and avoids the waterlogging of paved areas, guaranteeing the progressive retention and lamination of water to the subsoil, or its controlled conduction. The natural maintenance of aquifers allows the normal development of ecosystems and the growth of urban vegetation. On the other hand, an adequate rainwater harvesting system allows water to be recovered and stored for use in irrigation and street cleaning, reducing water consumption from the general water supply network.
Integration of rainwater in the urban landscape
Due to its high drainage capacity, the areas paved with DPS, such as streets, parks and squares, do not flood, allowing its immediate use by citizens after a rainfall.
Reduction of infrastructure costs
The simplicity of DPS enables the reduction of costs of water disposal systems at the same time that increases the landscape value of the surroundings.
Improvement of air quality
Thanks to the technology incorporated in the ecoDraining concrete slabs, DPS reduces environmental air pollution.
Improvement of water quality
The water that is filtered through DPS experiences a reduction of its pollutants, thus protecting the natural aquifers. At the same time, by retaining part of the rainwater, saturation in the treatment plants is avoided.