Bishop and Wesley Triaxial Testing Device

This high-quality stress path triaxial system is a fully automatic system consisting basically of a Bishop & Wesley cell which controls stress directly on the sample, three volume pressure controller(VPC), an internal submersible load cell to measure axial load, a pressure transducer to measure pore water pressure and a linear displacement transducer to measure vertical displacement.

Thanks to the integrated software and also the keyboard controller (volume pressure controller), the operation of the device is very user-friendly. Exchangeable, pre-calibrated measuring sensors guarantee high accuracy over a wide measuring range. All the tests are running under PC control like stress path, K0, slow cyclic etc.


  • Features
  • Specifications
  • Upgrade Options
  • Software
  • Standards
  • Applications
  • Tabletop System
  • Easy sample set up and handling of the test
  • Sample Size up to 100mm
  • Different Cell pressures 2MPa / 10MPa or 20Mpa
  • Different Axial Loads 7kN up to 50kN
  • Microprocessor-controlled precision
  • Direct operation of the device by a PC with controlling software (communication protocol is available)
  • Displacement closed-loop control using external or internal displacement transducer via software

 

Sample Size/s

38mm - 50mm / 70mm-100 mm

Cell Pressure

2 MPa/ 10 MPa/ 20 MPa

Max. Axial Load

7kN / 25kN / 50kN

Max. Axial Load with Motorized version

50kN

Pressure Accuracy

0.1% F.S

Pressure Resolution

0.1 kPa

Volume Accuracy

0.1% F.S

Range of testing Temperature

Optional

  • Temperature control package
  • Bender Element
  • Unsaturated Test
  • On sample circumferential transducer
  • High Pressure cell up to 20 Mpa
  • Special cell for use inside CT scanning device
  • Data Acquisition, processing and device management (DPD) Module
  • Saturation Module
  • B-value -Test Module
  • Consolidation Module (Isotropic or anisotropic)
  • Permeability Test Module
  • Stress path module: Linear stress paths- p, q or s, t
  • Static Shear Stage Module: UU: Unconsolidated Undrained Triaxial Test (Total Stress test)
  • Static Shear Stage Module: CU: Consolidated Undrained Triaxial Test with pore pressure measurement (Effective Stress test)
  • Static Shear Stage Module: CD: Consolidated Drained Triaxial Test with pore pressure measurement (Effective Stress test)
  • Unsaturated Test Module
  • K0 Test Module
  • ASTM D-2850
  • Standard Test Method for Unconsolidated-Undrained Triaxial Compression Test on Cohesive Soils

  • ASTM D-2850-03a
  • Standard Test Method for Unconsolidated-Undrained Triaxial Compression Test on Cohesive Soils

  • ASTM D-4767
  • Standard Test Method for: Consolidated Undrained Triaxial Compression Test for Cohesive Soils.

  • ASTM D-5084
  • Standard Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter

  • ASTM D-7181
  • Test Method for Consolidated Drained Triaxial Compression Test for Soils

  • ASTM D-7181-11
  • Method for Consolidated Drained Triaxial Compression Test for Soils

  • BS 1377-6
  • Methods of Test for Soils for Civil Engineering Purposes: Consolidation and Permeability Tests in Hydraulic Cells and with Pore Pressure Measurement

  • CEN ISO/TS 17892-11
  • Geotechnical investigation and testing — Laboratory testing of soil — Part 11: Determination of permeability by constant and falling head

  • CEN ISO/TS 17892-8
  • Geotechnical investigation and testing — Laboratory testing of soil — Part 8: Unconsolidated undrained triaxial test

  • CEN ISO/TS 17892-9
  • Geotechnical investigation and testing -- Laboratory testing of soil - Part 9: Consolidated triaxial compression tests on water-saturated soils

  • Detailed information will follow soon
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