Concrete / Bitumen insitu sampling


Independent Core Sampling, Streetworks Inspection And Diamond Drilling Specialists. Serving Local Authorities, Utilities, Contractors And Private Customers.

GSTL staff are qualified to the New Road and Street Works Act. Samples can then be taken for testing in the laboratory. A full descriptive report log is also taken with the core.

Taking and analysing samples of road constructions to establish compliance with the New Roads and Streetworks Act 1991. Road core drilling machine for extracting test cores from concrete and asphalt Drillling range from Ø 50 -200 mm.

  • Compressive Strength of concrete cores
  • Diamond core drilling for provision of test cores
  • Density of concrete specimen
  • Diamond sawing of cores for testing
  • Compressive Strength of concrete cubes
  • Provision of Laboratory staff for collection and sampling
  • Determination of water absorption
  • Provision of Laboratory staff for collection and sampling of concrete on site cubes/slump test
  • Relative density and water absorption
  • Aggregate Impact Value (AIV)
  • Frost Susceptability (frost heave)
  • Ten per cent fines – Dry (TFV)
  • Drying Shrinkage Ten per cent fines – Dry (TFV)
  • Flakiness Index
  • Determination of Particle size distribution (Dry)
  • Elongation Index