Asphalt Reinforcement Bitumen Coated Fiberglass Biaxial Geogrid Landfill And Embankment Support
What is a Fiberglass Biaxial Geogrid?
It is a geosynthetic grid made from fiberglass strands, woven or knitted in such a way that
it has significant and approximately equal tensile strength in two perpendicular directions—typically
referred to as the Machine Direction (MD) and the Cross-Machine Direction (CMD).
How Does Fiberglass Biaxial Geogrid Work?
The Key Feature: Equal Strength in Both Directions
Imagine the geogrid as a net.
A uniaxial geogrid is like a vertical fence:
it's very strong in one direction (up and down) but weak in the other (side to side).
It's used for wall and slope faces where the primary force is in one direction.
A biaxial geogrid is like a soccer goal net:
it's strong in both the length and the width, designed to handle forces coming from multiple angles.
Fiberglass Biaxial 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
Fiberglass Biaxial 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
Fiberglass Biaxial 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.
Fiberglass Biaxial 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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