O2D Mineral Foundation for access road

O2D mineral foundation for light vehicle access roads is recommended in the context of the development of paved access roads for permeable parking spaces.

This foundation material, which is recommended by O2D ENVIRONNEMENT, is comprised of open-graded crushed roadbed, with no fine particles. The technical characteristics of this mineral foundation material have been defined in conjunction with the TTE® permeable floor covering: TTE® grids for paving infill (O2D PAVE).

Recommended composition of mineral foundation:

• 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 > 60 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.

Applications:
- Permeable paved light vehicule access road