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.

Specifications Snapshot

Typical Applications / Uses

• Heavy traffic roads and bus routes

• Industrial pavements, depots, logistics yards

• Rehabilitation overlays under higher loading

• Arterial roads, airport service pavements

The post GGA 100 SA - Asphalt Reinforcement Glass Geogrid, Self-Adhesive (2.0m × 100m) appeared first on Geosynthetics South Africa.

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.

Specifications Snapshot

Typical Applications / Uses

• Asphalt overlay reinforcement (rehabilitation)

• Reflective crack control over cracked asphalt

• Municipal roads, parking areas, access roads

• Industrial yards and light-medium duty pavements

The post GGA 50 SA - Asphalt Reinforcement Glass Geogrid, Self-Adhesive (2.0m × 100m) appeared first on Geosynthetics South Africa.