Asset management

Cover of Understanding the Impact on Pavement Surfaces from Next Generation Freight Vehicles
Understanding the Impact on Pavement Surfaces from Next Generation Freight Vehicles
  • Publication no: AP-T174-11
  • ISBN: 978-1-921709-63-0
  • Published: 28 February 2011

The impact of heavy vehicles on pavement surfacings needs to be quantified over typical surfacing lifecycles. Failure modes of surfacings are often horizontal shear-stress induced rather than vertical load induced; these include bleeding and stripping, particularly in areas of high shear stresses such as rural T-junctions, climbing lanes and braking, accelerating and channelisation movements.

In response to this need, Austroads is sponsoring a Technical Research project AT1540 Understanding the Impact on Pavement Surfaces from Next Generation Freight Vehicles and Developing Practical Network Prediction Models and Responses. The aim of the project is to gain an improved understanding of the failure mechanisms that are particular to the pavement surfacing layer – as distinct from the structural layer – that may be caused by changing configurations and loadings of freight vehicles. Once failure mechanisms are understood, standards, prediction models and appropriate responses need to be developed.

The purpose of this report is to review existing studies and equipment relevant to the measurement of loads and stresses applied to the pavement by the tyres of heavy vehicles and the resulting pavement surface layer wear.

  • 1. INTRODUCTION
  • 2. PAVEMENT MODELLING AND WEAR MEASUREMENT
    • 2.1. Pavement Load and Stress Modelling
    • 2.2. Pavement Surface Wear Measurement
    • 2.3. Pavement Surface Selection and Empirical Observations
  • 3. PAVEMENT EFFECT ON TYRE FORCES
    • 3.1. Pavement Effect on Tyre Forces
    • 3.2. Tyre/Pavement Stress Measurement
  • 4. TYRE/PAVEMENT FORCE MEASUREMENT
    • 4.1. Stationary Tyre Test Rigs
      • 4.1.1. FKA Aachen NuReP Stationary Tyre Test Rig
      • 4.1.2. FKA Aachen MoReP Stationary Tyre Test Rig
      • 4.1.3. TUV Drum Test Rig
      • 4.1.4. MTS Flat-Trac Test Rig
      • 4.1.5. HUT (Helsinki University of Technology) Dynamic Tyre Test Rig
      • 4.1.6. Comparison of Existing Stationary Tyre Test Rigs
    • 4.2. Mobile Tyre Test Rigs
      • 4.2.1. UMTRI Mobile Tyre Test Rig
      • 4.2.2. Cornell Tyre Test Rig
      • 4.2.3. TUV Measuring Trailer II
      • 4.2.4. TNO Tyre Test Trailer
      • 4.2.5. FKA Aachen FaReP Mobile Tyre Test Rig
      • 4.2.6. Comparison of Mobile Tyre Test Rigs
  • 5. TYRE TYPES
  • 6. CONCLUSION
  • REFERENCES