Flexibility High Molecular Weight Polyester Biaxial Geogrid Railway
Base Reinforcement And Stabilization.
Polyester Biaxial Geogrid Functions in Geotechnical Engineering
The main function of a biaxial geogrid is Base Reinforcement and
Stabilization.
It works through two key mechanisms:
1.Lateral Confinement: The geogrid interlocks with the aggregate
particles in the base course.
This confinement prevents the aggregate from shifting laterally
under traffic loads,
effectively "locking" the aggregate in place. This greatly improves
the structural performance of the base layer.
2.Tensile Membrane Effect: The geogrid distributes point loads
(like vehicle wheels) over
a wider area of the weak subgrade.
This reduces the vertical stress on the soft soil beneath,
preventing rutting and subgrade failure.
Yixing Shenzhou Geosynthetics Polyester Biaxial Geogrid Advantages
Limitations :
Multi-Directional Strength:
Ideal for planar stabilization. Lower Strength in Each Direction:
For an equivalent weight/cost, a biaxial geogrid will have a lower
strength in each individual
direction compared to a uniaxial geogrid of the same material.
Excellent Soil Interlock:
The stable apertures provide superb aggregate confinement.
Not for Walls/Slopes: It is not the correct product for reinforced
soil walls or steep slopes,
where the primary tensile forces are unidirectional.
Superior Creep Resistance:
Excellent for long-term, permanent applications. Sensitivity to pH:
Like uniaxial polyester,
it requires a protective coating to resist hydrolysis in extreme pH
environments. Proper project-specific testing is recommended.
Reduces Aggregate Thickness:
Can allow for a thinner base course layer while maintaining
performance, saving on material costs.
Generally Higher Cost than polypropylene biaxial geogrids, but
offers superior long-term performance.
Increases Load-Bearing Capacity of the entire soil-geogrid system.
Yixing Shenzhou Polyester Geogrids:
1.Uniaxial Polyester Geogrids:
Stronger in one direction, used for reinforcement in specific
directions, such as retaining walls.
Popular Types : 100-30 KN/M ; 200-30 KN/M ; 200-50 KN/M ; 250-50
KN/M ; 200-100 KN/M
2. Biaxial Polyester Geogrids:
Strong in both directions, suitable for applications requiring
reinforcement in all directions, like embankments and slopes.
Hot Sell Models : 80-80 KN/M ; 120-120KN/M ; 200-200KN/M；
500-500KN/M
Polyester Geogrids Coating PVC Or Coated SBR
Polyester Biaxial Geogrid Technical Specification (ASTM/ISO Standards)
| Property | 100 kN/m | 200 kN/m | 300 kN/m | Test Method |
|---|
| Tensile Strength (MD) | ≥100 kN/m | ≥200 kN/m | ≥300 kN/m | ASTM D6637 / ISO 10319 |
| Elongation at Break | ≤13% | ≤13% | ≤13% | ASTM D6637 |
| Creep Limit (50 yrs) | ≤2% | ≤2% | ≤3% | ISO 13431 |
| Aperture Size | 25.4*25.4mm / 50.8*50.8mm | 25.4*25.4mm / 50.8*50.8mm | 25.4*25.4mm / 50.8*50.8mm | - |
Packing and Shipping
Selling packing: Customers' company Logo mark can be designed and added.
Outer packing: Packed in double layer woven bags to ensure smooth arrival and
avoid rough handle.
Delivery Detail: Winthin 10 days after received your deposit
Delivery Detail: 100,000 square meters can be finished within 3 days
Delivery Time: 3-20 days after confirming order, detail delivery date should be
decided according to
production season and order quantity.
Polyester biaxial geogrids are used in applications various
directions across a plane:
Base Reinforcement of Unpaved and Paved Roads:
This is the most common application. It is placed at the interface
between the subgrade and
the base course aggregate to create a stiffer, more stable working
platform and to extend the service life of the road.
Parking Lots and Construction Platforms:
Used to stabilize weak soils, allowing for construction traffic and
providing a stable foundation for asphalt paving.
Railway Track Bed Stabilization:
Placed under the ballast layer to reduce settlement, confine the
ballast, and reduce maintenance cycles.
Foundation Mattresses and Embankments:
Used to create a stable, reinforced platform over very soft soils
for embankment construction.
Landfill Liners and Caps: Sometimes used to reinforce the soil
cover over landfill cells
.
Comparison with Other Geogrid Types :
vs. Uniaxial Polypropylene (PP) Geogrids:
Polyester is stronger and has much better creep resistance than PP,
making it the preferred choice for permanent, critical structures.
PP is more cost-effective for smaller, temporary, or less critical
applications.
vs. Biaxial Geogrids:
Biaxial geogrids have strength in two perpendicular directions and
are used for
base reinforcement of roads, parking lots, and platforms where
loads are applied
from multiple directions. Uniaxial is specialized for
one-directional reinforcement in walls and slopes.
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!!!
