The core is extruded as fine filaments and fused where they cross. Sections named in the brochure include rectangular, hollow-matrix, round, and hollow-round.
The brochure contrasts it with a traditional French drain: a high open area, collection along the surface, a large void ratio, compressive strength, and enough flexibility to follow the soil.
What the brochure emphasises
- Light, and described as quicker to place than a stone drain.
- Custom compounds are offered: higher temperature, flame retardant, strong acid and alkali, higher elasticity, higher hardness.
Uses named in the brochure
- Road and railway shoulders.
- Tunnels, metro, underground passages and underground yards.
- Slopes and slope development.
- Behind retaining walls, vertical and horizontal.
- Landslide ground, power-station ash stacks, and landfill drainage.
- Sports fields, parks, roof gardens and planters.
- Building foundations.
- Agricultural and horticultural sub-irrigation.
Index table
A numerical table is printed for this product. It is not copied here, because the scanned cells could not be read without guessing. Ask for the current data sheet with your enquiry.