Alternative product review · Pavement geogrids
Pavement-grid selection is not a tensile-strength shopping exercise. Junction behaviour, aperture-to-aggregate interaction, radial response, composite filtration, aggregate grading, subgrade strength and the design method all affect the proposed outcome.
Biaxial and triaxial grids, with geotextile-composite options, supported by transparent product data and a preliminary design comparison tool for unbound layers.
Named products and search terms
These names are included because they occur in current manufacturer ranges or project specifications—not because they are automatically interchangeable with one another or with a Kontain product.
InterAx is the current Tensar multi-axial stabilisation range in Australia and includes grid and composite forms.
Exact grade, aperture geometry, radial-secants data, aggregate interaction, composite filtration and the project design method.
TriAx and TriAx TX-G names still occur widely in Australian specifications and asset-owner details.
Grade, grid versus geocomposite construction, design assumptions, junction performance, installation and aggregate grading.
H-Series and older biaxial SS terminology may be encountered alongside InterAx and TriAx on existing projects.
Generation and product code, intended mechanism, aperture/aggregate fit, composite layer and compatible design evidence.
Basetrac Grid was formerly called Fornit; Duo and Duo-C combine functions and should be compared as composites rather than bare grids.
Polymer, strength/strain basis, aperture, filtration or separation layer, installation damage and project design role.
Tritex is a geogrid-geotextile composite, while MIRAFI H2Rx is a multifunctional woven geotextile; their functions need to be separated when an alternative build-up is proposed.
Separation, filtration, drainage and reinforcement functions, moisture conditions, survivability and the pavement design basis.
Project comparison basis
The quickest responsible review is a gap analysis: hold the project requirements constant, normalise the published evidence, then make unresolved items visible.
State whether the layer is intended for stabilisation, reinforcement, separation, filtration, moisture management or a combination.
Nominal aperture claims are not enough. Aggregate size, grading, angularity, compaction and lift thickness affect interlock and confinement.
CBR or undrained shear strength, variability, groundwater, trafficking, rut criterion and construction platform requirements need one consistent basis.
Do not transpose a supplier-specific design method or proprietary performance claim to another product without a justified method.
Define proof rolling, trial sections, undercut rules, placement damage controls, overlaps and acceptance records before construction.
Common comparison traps
A clear exception is more useful than a confident but unsupported equality sign.
Direct answers
Not by default. A proposed alternative should be checked against the exact Tensar grade, specified mechanism, project design method, aggregate, subgrade and acceptance evidence.
Yes. Send the full pavement section, named grade, design assumptions, aggregate grading, subgrade information, traffic and specification clauses. Kontain can identify the closest responsible product and any evidence gaps.
Potentially, where the product has the required functions and evidence on the project basis. The lowest unit rate is not cost-effective if it relies on an unsupported layer reduction or causes construction delay.
Practical next step
Kontain can prepare a concise technical gap review, identify a suitable supply pathway where one exists, and make the exclusions visible before the commercial decision is locked in.
This is a technical orientation guide, not a certificate of equivalence, project design or approval. Third-party product and company names identify specification terminology only. All trademarks remain the property of their respective owners. No affiliation, endorsement or supply right is implied. Current manufacturer data, project requirements and the appointed designer’s acceptance take precedence.
