100% gravel with 2 paved lines

This layout pattern uses the permeable carriageway surfacing system O2D MINERAL® designed by O2D ENVIRONNEMENT® :
• TTE® Multidrain^Plus grid to fill with gravel (crushed 6/14 mm or 8/16 mm)
• A drainage-enhanced and load-bearing foundation material designed for light vehicle parking (c.f. technical information included in the Specifications)

A staggered layout pattern is employed (grid dimensions: 80 x 40 cm), and physical edging structures are provided.

Permeable gravel parking spaces are enclosed by two lines of TTE® concrete paving, for spaces of standard dimensions: 522.5 cm (length) x 250 cm (width). It is possible to adjust the dimensions of parking spaces by modifying the positioning of the paved lines, or by adding/removing grid modules.

The TTE® system is modular: a single base structure accommodates different infill options (paving/grass/gravel).

The O2D MINERAL® system provides multiple benefits:
- Technical advantages: optimum load-bearing and load distribution capabilities (exceptional static load resistance: 10 Newtons/mm², equivalent to 1,000 tonnes/m²)
- Applications: flexibility of design associated with the versatility of infills (paving available in nine colours for the formation of markings, option for the combination of paved/grass/gravel infills) and low maintenance (collection of autumn leaves)
- Environmental benefits: conservation of water resources and reduction of the urban heat island effect

TTE® Multidrain^Plus grids constitute an eco-material generated by a high-grade recycling system, produced from recycled household wastes (using the German DUAL system). Recycled, recyclable and reversible, this material contributes to the achievement of a circular economy. The permeable surfacing systems developed by O2D ENVIRONNEMENT are recommended in the context of eco design projects, incorporating the natural infiltration of rainwater and the provision of green surfaces.

Applications: drainage-enhanced parking spaces, permeable parking spaces, drainage-enhanced gravel parking spaces, permeable gravel parking spaces

Specification

Technical information on the mineral foundation for light vehicle parking with O2D MINERAL® system
Composition :
• 15 cm thickness: 2/20 mm or 2/32 mm crushed roadbed foundation
• 3 cm thickness: 4/6 mm or 3/8 mm crushed roadbed bearing course
Prepared base/sub-base (-23 cm in relation to level 0):
• The requisite permeability below this foundation system is such that K > 10^-6 m/s
• The load-bearing level required is such that EV2 > 40 MPa (EV2/EV1 < 2)
• We recommend the installation of a permeable anti-contaminant geotextile membrane
This mineral foundation composition ensures both load-bearing capability and drainage. It is recommended that the thickness of the sub-base (for example, 20/40 mm crushed drainage gravel) should be adjusted and/or any other facility should be incorporated, if the natural ground surface does not possess the requisite infiltration properties, or for the satisfaction of project design requirements. The load-bearing level should be appropriate to the intended application.
Technical information on TTE® grid
Product name:
TTE® Multidrain^Plus grid
Material:
100% recycled and recyclable domestic mixed plastic – German DUAL system
Dimensions:
Approximate dimensions: length 80 x width 40 x height 6 cm (+/- 2mm), comprised of 32 cells of dimensions 8 x 8 cm (1 m² = 3.125 grids)
Colouring of grids:
Anthracite grey (variable)
Weight - unladen:
Approximately 9 kg/grid, or approximately 28 kg/m² unladen
Weight – pre-grassed:
Approximately 22 kg/grid, or approximately 69 kg/m² pre-grassed
Surface finish:
Anti-slip ribs of thickness 2 mm
Underside:
T-profile support width of approximately 4.2 cm – 1.5 cm assembly joint on either side
Static load resistance:
10 Newtons/mm² (equivalent to 1,000 tonnes/m²)
Puncture resistance:
> 100 kN on a surface of diameter 20 cm (compliant for emergency service roadways) – GINGER CEBTP certification
Axle loading:
20 tonnes (147 kN)/unit of 4 unladen cells (20 x 20 cm) – Certified by the TÜV SUD (official German certification organization)
Technical information on TTE® concrete paving
Product name:
TTE® concrete paving
Dimensions:
Length 7.4 x width 7.4 x height 4.9 cm
Colours available:
Grey, red, anthracite, yellow stone, brown, white, green, blue, pink
Weight:
615 g/paving stone
Infill recommendation
Infill with gravel :
Crushed of 6/14 mm or 8/16 mm particule size