Introduction
Asphalt overlay fabric is a geosynthetic material engineered to extend pavement life by 50-100% while reducing maintenance costs. Installed between old and new asphalt layers, this high-performance fabric prevents reflective cracking, waterproofs roadbeds, and distributes load stresses. Trusted by DOTs and contractors worldwide, it’s the most cost-effective solution for road rehabilitation.
Technical Specifications
1. Material Composition
- Base Fabric: Nonwoven polypropylene (PP) or polyester (PET)
- Coating: Polymer-modified asphalt saturation (SBS or APP)
- Additives: UV stabilizers, antioxidants
2.Standard Dimensions for Asphalt Overlay Fabric
| Specification | Metric Size | Imperial Size | Tolerance | Notes |
|---|---|---|---|---|
| Width | 1.0m, 1.5m, 2.0m | 3.3′, 4.9′, 6.6′ | ±2% | Custom widths available |
| Roll Length | 50m, 100m | 164′, 328′ | ±1% | Standard commercial sizes |
| Thickness | 1.2-3.0mm | 0.047-0.118″ | ±0.1mm | Varies by material grade |
| Weight | 120-200g/m² | 3.9-6.5oz/yd² | ±5% | Includes saturation |
| Core Diameter | 76mm | 3″ | ±3mm | Plastic/steel options |
3. Performance Benefits
- Crack Prevention: Reduces reflective cracks by 80% (FHWA studies)
- Waterproofing: 0% permeability under 2 MPa pressure
- Temperature Resistance: -40°C to 160°C (-40°F to 320°F)
Why Choose Our Product?
1. Engineering Advantages
- Stress Absorption: Distributes traffic loads evenly, reducing subgrade deformation.
- Bonding Strength: 300% better asphalt adhesion vs. unlined overlays (ASTM D6140).
- Chemical Resistance: Unaffected by road salts, oils, or pH 3-11 environments.
2. Economic Value
- Cost Savings: $3-$6 saved per m² in long-term maintenance (NCHRP Report 747).
- Fast Installation: 5,000 m²/day with standard paving crews.
- Sustainability: 100% recyclable; reduces aggregate usage by 30%.
Installation Guidelines
- Surface Prep: Mill existing pavement, clean debris.
- Fabric Placement: Roll out taut with 150-300 mm overlaps.
- Asphalt Overlay: Apply ≥40 mm hot-mix asphalt within 48 hours.
Note: Compatible with asphalt emulsions or tack coats per ASTM D6998.
Global Certifications
- Quality: ISO 9001, CE Marking
- Environmental: ISO 14001, RoHS
- Transportation: AASHTO M288 Class 1, EN 15381
