GGA 100 SA is a high-strength self-adhesive glass geogrid used as an asphalt interlayer for heavier traffic pavements, improving durability and delaying reflective cracking.
High traffic roads, bus routes, industrial access corridors, and heavily loaded pavements fail differently: cracks form faster, widen sooner, and reflect through overlays at an accelerated rate. GGA 100 SA – Self-Adhesive Glass Geogrid Asphalt Reinforcement is engineered for those higher stress conditions, providing a stronger tensile reinforcement layer within the asphalt system.
As a self-adhesive glass fibre geogrid, GGA 100 SA is designed to be installed between asphalt layers. The geogrid’s high modulus allows it to carry tensile forces that asphalt alone cannot sustain over time. In practical terms, this means lower crack growth rates, improved fatigue resistance, and a longer interval between resurfacing cycles—especially where overlays are placed over cracked or jointed substrates.
The self-adhesive coating improves constructability by stabilising the grid during placement, reducing the likelihood of movement prior to paving. That stability supports better overlap control and placement accuracy, which is important on wide carriageways and high-production paving operations.
Contact us if you are looking for asphalt reinforcement geogrid, glass geogrid for roads, self-adhesive glass grid interlayer, reflective cracking control, pavement interlayer reinforcement, and asphalt overlay reinforcement for heavy traffic.
Typical use cases
Rehabilitation overlays where cracking is already present and must be controlled
Higher-volume traffic corridors with repeated crack reflection history
Industrial pavements and hardstands exposed to turning and braking forces
Airport service roads or heavy-duty access routes where performance reliability is critical
Performance intent
GGA 100 SA is selected where a standard reinforcement grid may be under-designed. The 100/100 kN/m tensile capacity supports more demanding pavement structures and helps reduce maintenance interventions. It also provides a practical route to improving performance without simply increasing asphalt thickness.
Installation principles
Good outcomes require correct surface preparation, appropriate tack coat application, smooth placement, and compaction controls. Like all asphalt interlayers, workmanship matters—wrinkles, contamination, or poor bonding can reduce effectiveness.
When you want a strong, self-adhesive reinforcement interlayer that matches heavy-duty pavement realities, GGA 100 SA is the go-to specification class.
