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Site Investigation

Constructive Evaluation has a team of experienced Geo-Environmental specialists, able to provide full Contaminated Land assessments or soil screening as necessary to fulfil the requirements of construction projects and to satisfy the planning process.

Insitu Testing

Our Geotechnical team are able to offer rapid mobilisation and reporting to fulfil insitu testing requirements for a variety of earthworks projects. 

Our test teams include Engineering Geologists and Trained Technicians, all holding appropriate CSCS qualification and trained to work in Network Rail (PTS) and London Underground (ICI-LUL) environments.

Please contact Shaun Gilbrook at our Head Office to discuss your insitu testing requirements.

Our services include:

California Bearing Ratio

  • Vehicle Mounted Type
  • Dynamic Cone Penetrometer
  • Clegg Impact Tester

Infiltration Testing

  • BRE 365 Soakaway Testing
  • Percolation Testing to BS6297 (Field Drainage)
  • Falling Head Permeability Testing

Plate Bearing Test

  • Testing below vehicle or using Bolt Down Frame
  • Plate sizes 150mm to 600mm

Geotechnical / Geo-Environmental Testing

  • Standard Penetration Testing (SPT)
  • Dynamic Probing Testing – Heavy (DPH) and Super Heavy (DPSH)
  • Borehole gas and groundwater monitoring
  • Hand Shear Vane and Pocket Penetrometer