Neoloy® Tough-Cell Highway Reinforcement or Low creep and High Stiffness

PRS Neoloy® Tough-Cells highway stabilization solutions deliver strength and increase the lifecycle of highway construction projects

Neoloy optimizes the use of geocells in highway engineering (See Geotechnical Engineering Overview) for engineers and contractors by providing design assistance as well as by a choice of categories of geocells customized to project requirements. The result? Increased performance at lower cost, no matter the project type.

  • Validated design methods – integrating the Neoloy Tough-Cell modulus improvement factor (MIF) for use in unpaved roads (Giroud and Han method) and highway construction (layered elastic model method)
  • New specifications and standards – performance-based specs that more accurately reflect the performance of geocells in the field than conventional specifications.
  • Engineering consulting – PRS provides geotechnical engineering and design services to maximize the impact of Neoloy Tough-Cells on each highway reinforcement project.
  • New Neoloy categories – PRS developed 4 main types of geocells to optimize a project (and cost-effectiveness) by matching the tensile strength and durability of Neoloy Tough-Cells to the project requirements.
beam effect

Modulus Improvement Factor – MIF (Highway Engineering Modulus)

  Neoloy Tough-Cell confinement increases the resilient modulus of confined granular materials in pavement structures, such a...(Read More)

geoengineering (geotechnical engineering)

Neoloy Tough-Cells Engineering Benefits

Tough-Cells must retain their performance over time, e.g., maintain their 3D geometry (dimensional stability) for the reinforcemen...(Read More)

beam effect

Beam Effect

Vertical loading on Neoloy Tough-Cells infilled with compacted granular material creates a semi-rigid slab or “beam effect” over s...(Read More)

Geocell Road Rehabiliation Poland

Road Design Methodologies

Studies of geocell reinforcement mechanisms, numerical modeling and field trials by researchers included the calibration of existi...(Read More)



  • Confinement increases layer strength (modulus)
  • Reinforcement reduces layer thickness and wearing course
  • Beam effect improves load transfer and bearing capacity
  • Modulus Improvement Factor (MIF) allows more traffic for longer periods of time
  • More reinforcement than any geogrid or HDPE Soft-Cell


  • Simple logistics and fast all-weather installation
  • Lower construction, infill costs
  • Improve pavement lifespan
  • Reduce repairs, maintenance cycles, and downtime


  • Use locally available, ungraded or recycled materials for infill
  • Reduce quarrying, hauling, fuel, pollution, carbon footprint
  • Green sustainable construction method

Novel Neoloy Polymer Alloy

  • Provides very high stiffness, dimensional stability, creep resistance
  • Long-term performance under heavy dynamic loading
  • Outperforms any other HDPE Soft-Cell