High-Temperature Resistance Low Creep Glass Fiber Geogrid Tensile Strength 100 FG Grid Asphalt Pavement Reinforce
How Does Glass Fiber Geogrid Work? The Principle of Reinforcement
The geogrid works through two main mechanisms:
Tensile Strength Transfer: Soil and aggregates are strong in compression but very weak
in tension (they can't resist pulling forces). When a load is applied (e.g., a truck wheel),
the soil tends to spread laterally. The geogrid, with its high tensile strength, absorbs these lateral forces,
"holding" the soil together and preventing deformation.
Interlock and Confinement: The open apertures of the geogrid allow soil particles to penetrate and lock
into the grid. This creates a strong mechanical bond, effectively confining the aggregate and creating a stiffened,
composite layer that behaves like a reinforced mat.
Glass Fiber Geogrid Key Properties and Advantages
Extremely High Tensile Strength: Glass fiber geogrids offer one of the highest tensile strengths
among all geogrid types, making them ideal for demanding applications.
Low Creep: Creep is the tendency of a material to deform permanently under a constant load.
Glass fibers have very low creep, meaning the reinforcement is long-lasting and stable.
High-Temperature Resistance: They can withstand the high temperatures of hot mix asphalt during
paving without losing their properties.
Excellent Fatigue Resistance: They perform well under repeated loading, which is crucial for roads and railways.
Inert Material: Resistant to biological degradation, UV radiation (when properly coated), and most chemicals found in soil.
Lightweight and Easy to Install: Rolls are easy to transport and handle on-site.
Glass Fiber Geogrid Key Properties:
- Aperture Size:
Typically ranges from 20x20 mm to 40x40 mm, optimized for optimal interlock with common aggregate sizes.
2. Coating:
Coated with a polymeric material (e.g., PVC) to protect the glass fibers from abrasion and
damage during installation and to provide UV resistance.
Glass Fiber Geogrid Geogrid Specification:
| Fiberglass geogrid technological standard(GB/T 21825-2008) |
| specification | FG30×30 | FG50×50 | FG
60×60 | FG
80×80 | FG
100×100 | FG
120×120 | FG
150×150 |
| Mesh center distance(mm) | MD | 25.4±3.8 , 12.7±3.8 |
| CMD | 25.4±3.8 , 12.7±3.8 |
| breaking strength(kn/m) | MD | 30 | 50 | 60 | 80 | 100 | 120 | 150 |
| CMD | 30 | 50 | 60 | 80 | 100 | 120 | 150 |
| Breaking Elongation(%) | MD | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| CMD | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Width(m) | 1m-6m | 1m-6m | 1m-6m | 1m-6m | 1m-6m | 1m-6m | 1m-6m |
Before Coated Bitumen After Coated Bitumen
Mesh Size 25.4x25.4mm Mesh Size 12.8x 12.8 mm
Glass Fiber Geogrid Key Benefits:
✔ Optimal Load Distribution – Reduces stress and prevents reflective cracking
✔ Asphalt-Compatible – Bitumen-coated for superior adhesion in paving applications
✔ High Tensile Strength – 50 kN/m in both directions (longitudinal & transverse)
✔ Corrosion & UV Resistant – Long-lasting durability in harsh conditions
✔ Easy Installation – Flexible, lightweight, and roll-form for quick deployment
Glass Fiber Geogrid Applications:
1.Road and Pavement Reinforcement:
Laid on soft subgrade before placing the aggregate base course.
It reduces rutting, extends pavement life, and allows for a thinner base layer, saving cost.
2.Soil Stabilization:
Used to build stable working platforms on very soft soils (like clay or peat),
allowing construction equipment to operate.
3.Asphalt Overlay Reinforcement:
A specialized application where a fiberglass geogrid is embedded in asphalt to retard reflective cracking from old pavement layers.
4.Landfill and Embankment Support:
Provides tensile strength to soil structures.
5.Parking Lots and Access Roads:
A very common application for this strength class.
Glass Fiber Geogrid Key Considerations and Potential Downsides :
Not a Fix for Structural Failure:
If your old driveway is failing due to a poor base
(e.g., sinking, severe rutting), a geogrid will not help. The underlying base must be sound and stable.
Proper Thickness is Critical:
Paving too thin of an asphalt layer (e.g., 1.5-2 inches) over the grid will not
provide enough material to interlock properly and can lead to raveling (the asphalt breaking apart around the grid).
Cost:
It adds to the initial cost of the driveway project due to the material cost and specialized installation knowledge.
Contractor Experience:
Not all asphalt contractors are familiar with the proper installation technique for paving geogrids. It is vital to hire a contractor who has proven experience with this specific product.
Yixing Shenzou Geosynthetics more geotechnical material solutions,
Welcome to contact Yixing Shenzhou Amelie Dai
Email : amelie@geogrid-cn.com
Mob/Whatsapp : 0086 13815119816
To Get Free Sample!!!
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