Geosynthetics · 2026-03-14
How Geo Grids Improve Pavement Performance
By Hitesh Lunnia · Director · 1 min read
Aggregate confinement: angular sub-base aggregate locks into the open ribs of the Geo Grid, preventing lateral spread under load. The composite layer behaves stiffer than the aggregate alone, distributing wheel load over a wider footprint.
Tensile membrane: under heavy load, the Geo Grid develops tensile force that supports vertical load like a flat suspended sheet. This is especially valuable over soft sub-grades where the natural soil cannot resist deformation.
Strain reduction: by limiting lateral movement of the aggregate, Geo Grids reduce strain at the bottom of the asphalt and at the top of the sub-grade — the two failure planes most responsible for rutting and fatigue cracking.
Cost impact: a properly designed Geo Grid lets you reduce sub-base thickness by 30 to 50 percent for equivalent pavement life, or extend pavement life 1.5 to 3 times at the same sub-base thickness. Either way, the Geo Grid cost is repaid many times over.
Auroguard supplies design support and Geo Grid quotations matched to your sub-grade CBR and pavement life requirement.
Related Products
Products referenced in this guide
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About the author
Hitesh Lunnia
Director at Auroguard Private Limited. Auroguard manufactures highway crash barriers, guardrails and geosynthetics to IRC, MoRTH and IS specifications, supplying NHAI, PWD and EPC infrastructure projects across India. This guidance reflects direct manufacturing and project-supply experience — not third-party rewriting.
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