Road Pavement Assessment

The continued monitoring of road pavement conditions is essential to minimise maintenance costs and to ensure the safety of road users.

Our  invasive and non-invasive pavement investigation, testing and monitoring techniques, combined with factual and interpretative reporting provide valuable infomation to assess the causes of failure and the quality of the road construction, and include: 

• California Bearing Ratio (CBR)
• Investigations of the sub-base and sub-grade using TRL dynamic cone penetrometers
• Plate load testing
• Lightweight deflectometer (LWD) assessment of lower layers
• Pavement condition surveys
• Skid resistance and texture depth testing
• Surface irregularity
• Rate of spread of binder and chippings
• Density testing by nuclear density meter
• Coring for Specification for Highways Works (SHW) Clause 929 testing
• Sampling bituminous materials
• Soil stabilisation testing and mix design 
• Ground Penetrating Radar (GPR) 
• Indirect tensile stiffness modulus testing 
• NAT tests
• Detection of tar

Interpretation of Results

Our expertise in the field of road pavement assessment supported by UKAS accredited laboratories enables us to provide valuable advice on any remedial action that may be needed including for example,

• The effects of thin surfacings
• Treatments for high skid resistance
• Recycling methodologies
• Rut resistance
• Crack and seat solutions
• Pavement and road foundation designs using elastic modelling