- High permeable material/special material that allows water to pass through into the soil

- underground gravel bed (additional filtering of storm water runoff)

- Flexible material; Application for car parks, parks, public spaces, bicycle path, private gardens…

- Example (Drenatech):

- Innovative flooring option: consists of stones and two-component resin

- Two-component resin -> binds material, natural stones -> define appearance

 - Use of different stone types

- Esthetical value: more attractive than regular floorings (e.g. asphalt; concrete)

- Frost- and wear-resistant

- High chemical + mechanical strength

Basic information

Type: 
Retrofitting + Creation
Challenge: 

Performance

Evapotranspiration none none
Shading none none
Reflection (Albedo) none
Water Conveyance none
Water Infiltration 1
Water Retention none
Water Storage none
Water Reuse none
Water Filtering none
Water Bio-remediation none
Deposition none
Bio-filtration none
Habitat Provision none
Connectivity none
Beauty / Appearance none
Usability / Functionality 1
Social Interaction none
Role of Nature / Mode of Action: 
- Permeable concrete -> water regulation function - Porous medium -> inspired by natural soils -> water drains/infiltrates into the soil - Reduced flood risk compared to typical roads, where water runs off the surface
Technical & Design Parameters: 
- Example (Drenatech): - Environmentally friendly - Resistant to heat and frost - About 600-1000 l/m^2 per minute water passes - Easy to apply ( two components to mix)
Benefits & Limitations: 
Benefits: - Water regulation with space which is normal sealed - Reduces storm runoff - Improves water quality - Mitigating the urban heat island effect

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 730052 Topic: SCC-2-2016-2017: Smart Cities and Communities Nature based solutions