CTS granted UKAS Accreditation for new Chesterfield Lab


Our new UKAS Accredited Laboratory at Chesterfield is headed by Clive Marshall (Lab Director) and Aaron Fry (Section Manager). Also supported by Lesley Marshall our Geotechnical Lab Manager based at Doncaster. They have over 50 years testing experience between them. Our new facility will enable us to service new clients outside of our traditional Earthworks sector.

Chesterfield Testing Schedule
Moisture content : BS1377-2: 1990 Clause 3.2 Oven Drying / Determination of water content by oven drying : BS EN ISO 17892-1: 2014
4 point determination of liquid limit : BS EN ISO 17892-12: 2018 / Plastic Limit and Plasticity Index : BS EN ISO 17892-12: 2018
Determination of bulk density by linear measurement method : BS EN ISO 17892-2: 2014 Clause 5.1

Triaxial Permeability
Permeability by flexible wall permeameter in a Triaxial cell method
(100mm diameter samples with max pressure of 2000kPa) :
BS EN ISO 17892-11: 2019

One Dimensional Consolidation (Oedometer)
Incremental loading oedometer 75mm or 50mm samples, maximum loadings of 3200kPa for 75mm, 7500kPa for 50mm: BS EN ISO 17892-5: 2017

Large and Small Shearbox
Direct shear tests using 60mm and/or 300mm Shearbox (60mm sample max vertical pressure 2500kPa, 300mm sample max vertical pressure 1000kPa:
BS EN ISO 17892-10: 2018

Specification for highways works series 600 clause 636: using 60mm and/or 300mm Shearbox (60mm sample max vertical pressure 2500kPa, 300mm sample max vertical pressure 1000kPa

Consolidated Drained and Undrained Triaxial with Pore Pressure Measurement
Consolidated triaxial compression – Isotropically consolidated with drained or undrained shear conditions, 100mm or 38mm diameter samples with maximum pressures of 2000kPa : BS EN ISO 17892-9: 2018

Consolidated triaxial compression – multi-stage test – Isotropically consolidated with drained or undrained shear conditions, 100mm or 38mm diameter samples with maximum pressures of 2000kPa : Documented in house method based upon the principles and calculations of BS EN ISO 17892-9: 2018

Please look through our brochure at the Automated Testing we are now able to offer as well as general soils testing also to accompany such tests as CU Triaxial and Permeability. Please send any initial enquiries to:

  • Clive Marshall – cm2@constructiontesting.co.uk
  • Lesley Marshall – lm@constructiontesting.co.uk
  • Aaron Fry – af@constructiontesting.co.uk
  • or feel free to contact Clive Marshall on 01302 352652

For a full list of UKAS Accredited services provided by CTS, please check our UKAS Schedule.

Construction Testing Solutions Accreditations 2019
Construction Testing
01302 352 652