GGA 50 SA is a self-adhesive glass fibre geogrid engineered as an asphalt interlayer to retard reflective cracking and improve pavement durability in rehabilitation and new asphalt construction.
When pavement cracks reflect through a new overlay, the cost is not just cosmetic—it becomes a maintenance cycle of sealing, patching, and premature resurfacing. GGA 50 SA – Self-Adhesive Glass Geogrid Asphalt Reinforcement is designed to break that cycle by acting as a high-modulus reinforcement interlayer within asphalt systems.
GGA 50 SA is a glass fibre geogrid supplied with a self-adhesive polymer-modified bituminous coating that helps the grid stay positioned during installation. Once installed and overlaid, the grid works as a tensile reinforcement element within the pavement structure. It distributes tensile stresses laterally, reducing stress concentration at crack tips and slowing crack propagation into the new surface layer.
This product is widely used in asphalt overlay reinforcement over cracked asphalt surfaces, composite pavements, and areas prone to thermal movement. It is particularly effective where budgets or levels require thinner overlays and where long service life is expected with minimal future disruption. The open grid structure supports strong bonding between asphalt courses and reduces the risk of slippage when correctly installed with the specified tack coat and compaction procedures.
Speak with us if you are looking for: self-adhesive glass geogrid, asphalt reinforcement geogrid, glass geogrid for reflective cracking, pavement reinforcement interlayer, and road overlay crack control. Engineers, contractors, and asset owners choose our solution to increase pavement performance without over-thickening the overlay.
Where it performs best
Roads with existing cracking where overlays are planned
Municipal streets and access roads with repeated maintenance history
Industrial yards and loading areas with turning stresses
Parking areas and logistics surfaces where crack reflection is common
Installation
A clean, dry substrate and correct tack coat practice are essential. The grid is rolled out smoothly, pressed down, and installed as a continuous interlayer before paving. Good workmanship—alignment, overlap control, and avoiding wrinkles—directly improves performance.
If you’re specifying a reliable, widely applicable solution for reflective crack control in general roadworks and rehabilitation, GGA 50 SA offers a strong performance-to-cost balance and excellent constructability.
