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HERMEQ DACHBiaxial Geogrid 4.0M x 50M
Product Highlights
- 20kN, 30kN & 40kN Grades – Choose between three tensile-strength options, each providing the same ultimate strength in the longitudinal and transverse directions.
- 4m x 50m Roll Size – All three variants are supplied in a 4m wide x 50m long roll.
- Polypropylene Biaxial Construction – Manufactured from punched and stretched polypropylene sheet to form a monolithic grid for stabilisation and reinforcement.
Alternative Products
SKU GT247921
The HERMEQ Biaxial Geogrid is a 4m x 50m polypropylene reinforcement grid available in 20kN, 30kN and 40kN grades. Designed to provide tensile strength in both the longitudinal and transverse directions, it is suitable for ground stabilisation and reinforcement within engineered sub-bases, working platforms and other civil-engineering applications.
Quickest Available Delivery: Quickest Available Delivery: 5 Day Delivery
This biaxial geogrid is intended for projects where reinforcement is required across two principal directions. The 20/20, 30/30 and 40/40 grades provide progressively higher tensile performance while retaining a biaxial structure with matched MD and TD ultimate strength.
- Biaxial tensile performance – Ultimate tensile strength is 20kN/m, 30kN/m or 40kN/m in both the longitudinal and transverse directions, depending on grade.
- Polypropylene construction – All three grades are manufactured from polypropylene, with a minimum carbon black content of 2%.
- Strong integral junctions – The geogrid is formed from punched and stretched polypropylene sheet rather than separate bonded grid elements.
- Grade-specific aperture dimensions – Aperture size reduces from 35 x 35mm on 20/20 to 34 x 34mm on 30/30 and 33 x 33mm on 40/40.
The appropriate 20kN, 30kN or 40kN grade should be selected according to the engineered design, ground conditions and required tensile performance rather than by roll size alone.
The Biaxial Geogrids work by compacting granular particles over the grids, which partially penetrate and project through the apertures to create a tough, durable, and positive interlock. The interlocking mechanism creates a load dispersal effect which increases the shearing resistance in the soil, improving the compaction and allowing the sub base thickness to decrease, which in turn reduces the time and cost of construction.
A very low maintenance system the biaxial geogrid is a cost-effective solution to pavement problems and can be used on:
- Construction haul roads
- Paved and unpaved roads
- Railways and ports
- Working platforms on weak sub-soils
- Parking and paved areas
- Multi-layer applications
- Piling platforms
HERMEQ stock a wide-range of Geotechnics, Geotextiles, Geomembranes & Root Barriers conforming to all required safety specifications and regulations.
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Contact our team via phone 0800 043 2520, email sales@hermeq.com or use our live chat feature between 8:00am & 17:00pm for help discovering our range.
| Specification | 20/20 | 30/30 | 40/40 |
|---|---|---|---|
| Roll Size | 4m x 50m | 4m x 50m | 4m x 50m |
| Polymer | PP | PP | PP |
| Minimum Carbon Black | 2% | 2% | 2% |
| Carbon Black Test Method | ASTM D 4218 | ASTM D 4218 | ASTM D 4218 |
| Ultimate Tensile Strength - MD | 20kN/m | 30kN/m | 40kN/m |
| Ultimate Tensile Strength - TD | 20kN/m | 30kN/m | 40kN/m |
| Ultimate Tensile Strength Test Method | EN ISO 10319 | EN ISO 10319 | EN ISO 10319 |
| Tensile Strength @ 2% Strain - MD | 7kN/m | 10.5kN/m | 14kN/m |
| Tensile Strength @ 2% Strain - TD | 7kN/m | 10.5kN/m | 14kN/m |
| Tensile Strength @ 5% Strain - MD | 14kN/m | 21kN/m | 28kN/m |
| Tensile Strength @ 5% Strain - TD | 14kN/m | 21kN/m | 28kN/m |
| Strain @ Ultimate Strength - MD | 13% | 13% | 13% |
| Strain @ Ultimate Strength - TD | 13% | 13% | 13% |
| Junction Efficiency - MD | 93% | 93% | 93% |
| Junction Efficiency - TD | 93% | 93% | 93% |
| Flexural Rigidity | 750,000 Mg-cm | 2,000,000 Mg-cm | 4,800,000 Mg-cm |
| Flexural Rigidity Test Method | GRI GG2 | GRI GG2 | GRI GG2 |
| Aperture Stability | 0.50 m-N/deg | 0.75 m-N/deg | 0.98 m-N/deg |
| Aperture Stability Test Method | ASTM D7748 COE Method | ASTM D7748 COE Method | ASTM D7748 COE Method |
| Aperture Dimensions - MD | 35mm | 34mm | 33mm |
| Aperture Dimensions - TD | 35mm | 34mm | 33mm |
| Minimum Rib Thickness - MD | 1.5mm | 2.5mm | 3.4mm |
| Minimum Rib Thickness - TD | 1.1mm | 1.5mm | 2.1mm |
| Roll Width | 4m | 4m | 4m |
| Roll Length | 50m | 50m | 50m |
What is a biaxial geogrid used for?
A biaxial geogrid is used for ground stabilisation and reinforcement where tensile strength is required in both longitudinal and transverse directions. It is typically incorporated within engineered ground, aggregate or sub-base constructions rather than used as a finished surface.
What size roll is this biaxial geogrid?
HERMEQ supplies this biaxial geogrid in 4m x 50m rolls across the 20kN, 30kN and 40kN strength options.
What is this biaxial geogrid made from?
This biaxial geogrid is manufactured from polypropylene (PP). The range is produced as a monolithic grid by punching and stretching an extruded polypropylene sheet.
What aperture size does each grade have?
20/20 has nominal aperture dimensions of 35 x 35mm, 30/30 has 34 x 34mm apertures and 40/40 has 33 x 33mm apertures.
Which biaxial geogrid strength grade should I choose?
Choose the 20kN, 30kN or 40kN grade according to the project design and required tensile performance. The technical properties differ between grades, so where a specific geogrid strength has been stated by the project engineer or ground design, that specification should be followed.
