TechnoBris™ Global
Weak subgrade improvement pavement system
Roads & Pavement System

Weak Subgrade Improvement System

Reinforced pavement foundation system engineered to enhance bearing capacity, reduce aggregate intrusion, and control deformation over low CBR soils.

Engineering Objective

Increase Bearing Capacity & Control Deformation

Improve subgrade performance where CBR values are low, shear strength is insufficient, and excessive settlement threatens pavement serviceability.

Low CBR subgrade failure risk
Geogrid placement over weak subgrade
System Configuration
  • Prepared and proof-rolled subgrade.
  • Separation geotextile layer.
  • Biaxial geogrid reinforcement.
  • Engineered granular base layer.
  • Compaction to required density.
Functional Mechanism

Under traffic loading, weak subgrade soils deform due to low shear strength. The biaxial geogrid interlocks with aggregate, creating lateral confinement and distributing loads over a wider footprint.

This composite action increases modulus response, reduces vertical strain, and prevents progressive rut formation.

Load distribution through reinforced granular layer
CBR testing and soil evaluation
Design Considerations
  • Subgrade CBR and resilient modulus values.
  • Traffic class and axle load spectrum.
  • Granular base thickness optimization.
  • Drainage and seasonal moisture variation.
  • Construction sequence and compaction control.
Applications
  • Village and rural road construction.
  • Industrial access roads.
  • Temporary construction haul roads.
  • Parking and logistics yards.
  • High rainfall soil conditions.
Reinforced rural road construction

CBR Improvement

Enhanced bearing response.

Rutting Control

Reduced permanent deformation.

Thickness Reduction

Optimized granular layer depth.

Aggregate Confinement

Improved interlock stability.

Lifecycle Performance

Extended serviceability period.

Primary Material Components
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Strengthen Weak Pavement Foundations

Consult TechnoBris™ engineers to configure subgrade reinforcement systems for low-strength soil environments.

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