Geosynthetics
Geosynthetics are synthetic polymeric materials used in civil engineering to provide filtration, separation, drainage, and protection. In below-grade waterproofing and infrastructure projects, non-woven geotextiles act as a crucial filter layer, preventing soil particles from clogging drainage media while protecting waterproofing membranes from sharp gravel puncture. They are vital for retaining walls, landscaping podiums, and deep foundations.
Selection Guidance: How to Choose
Evaluate mechanical stress, filtration requirements, and water flow: Specify non-woven needle-punched geotextiles for filtration and membrane protection, ensuring the mass per unit area (g/sqm) matches soil pressure and mechanical loads. Use higher-grammage fabrics (typically 200-300 g/sqm) when protecting waterproofing membranes against coarse aggregates or backfill.
Primary B2B Application Areas
Drainage filtration in sub-surface French drains
Protection layer over waterproofing membranes
Soil separation in landscaped podiums and roads
Filtration layer behind below-grade retaining walls
Specifier & Engineer Checklist
- Verify grab tensile strength and elongation characteristics (ASTM D4632)
- Confirm CBR puncture resistance of the geotextile sheet (ASTM D6241)
- Check water permeability and apparent opening size (AOS, ASTM D4751)
- Verify polymer quality (must be 100% virgin polypropylene or polyester)
Product Range
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Request official project compliance validation sheets, coverage calculation models, and chemical analysis matrices for this product range.
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