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Triaxial cells for advanced applications

BS 1377:7 | ASTM D2850 | ASTM D4767 | BS 1377:8 | NF P94 070 | NF P94 074 | ASTM D7181

Banded triaxial cell
Vacuum attachment mounted on WF4070- WF4100 - WF4150
Advanced triaxial kit allowing use of mini on sample transducers and bender elements WF4070/ADV
Banded triaxial cell mounting the advanced upgrading kit for on sample transducers and bender elements
Triaxial sample accessories
Triaxial top cap
Two part split mould with vacuum attachment 28-WF4101/H

Main Features

  • Light alloy construction, stainless steel ram and O ring seal
  • Built-in cell ram clamp
  • Includes pillar and anvil for strain dial gauge or transducer
  • Five on/off no-volume changes valves fit as standard
  • For sample sizes between 38 and 150 mm dia.
  • Standard length chambers accepts submersible load cells
  • Rapid assembly design
  • Cells are designed to accommodate a specimen with a high twice its diameter
  • Base adapters, plinths, top caps, porous disc, rubber membranes and sealing rings are not included. See accessories.
  • Models :28-WF4070; 28-WF4100; 28-WF4150 with  pedestal and top cap can be used also to perform stress path tests and dynamic test using a vaccum attachment 
  • Models :28-WF4070; 28-WF4100; 28-WF4150 can be upgraded with an advanced kit making them compatible with mini on sample transducers and bender elements.
  • tecnical specifications
    • Scroll the table
      Model 28- WF4050 WF4070 WF4100 WF4150
      Nominal size dia. mm 50 70 100 150
      Range of spec. size dia. mm 38-50 38-70 38-100 38-150
      Max. working pressure kPa 3500 3500 2000 2000
      Max. height [mm] 410 670 745 870
      Dia. mm (including valves) 350 400 440 650
      Weight approx.[kg] 7 15 21 40
      Test        
      Effective stress/Total stress x x x x
      Stress path    x x x
      Dynamic test / Extension    x x x
      On sample/bender elements*    x x x
      * Requires Advanced upgrading kit 
  • ordering info
    • 28-WF4050
      Banded triaxial cell for up to 50mm dia. sample sizes                                           
      - Maximum working pressure up to 3500 kPa 
      - Five inlet points for top/bottom drainage, cell pressure and pore pressure 
      - Quick coupling for two drainages lines on the base 

      28-WF4070
      Banded triaxial cell for up to 70mm dia. sample sizes :                                          
      - Maximum working pressure up to 3500 kPa 
      - Five inlet points for top/bottom drainage, cell pressure and pore pressure 
      - Quick coupling for two drainage lines on the base
      - Vaccum attachment to be used with vaccum top cap for extension tests
      - The cell can be upgraded with advanced kit model 28-WF4070/ADV for use of mini on sample transducers and bender element.

      28-WF4100  
      Banded triaxial cell for up to 100mm dia. sample sizes :                                          
      - Maximum working pressure up to 2000 kPa 
      - Five inlet points for top/bottom drainage, cell pressure and pore pressure 
      - Quick coupling for two drainage lines on the base
      - Vaccum attachment to be used with vaccum top cap for extension tests
      - The cell can be upgraded with advanced kit model 28-WF4100/ADV for use of mini on sample transducers and bender element.

      28-WF4150  
      Banded triaxial cell for up to 150mm dia. sample sizes :                                          
      - Maximum working pressure up to 2000 kPa 
      - Five inlet points for top/bottom drainage, cell pressure and pore pressure 
      - Quick coupling for two drainage lines on the base
      - Vaccum attachment to be used with vaccum top cap for extension tests
      - The cell can be upgraded with advanced kit model 28-WF4150/ADV for use of mini on sample transducers and bender element.


  • accessories
    • Pedestal
      Adopting the new range of pedestals it is possible to test specimens with different diameters into the same triaxial cell.
      The  codes are self-explanatory:
      28 – WF4xxx/YY
      xxx = refers to specimen dia.
      031 = 38mm
      051 = 50mm
      071 = 70mm
      101 = 100mm
      151 = 150mm
       
      YY = refers to triaxial cell
      5 = 50mm
      7 = 70mm
      10 = 100mm
      15 = 150mm

      Cell code
      Specimen dia.
      28-WF4050
      50 mm
      28-WF4070
      70 mm
      28-WF4100
      100 mm
      28-WF4150
      150 mm
      38 mm 28-WF4031/5 28-WF4031/7 28-WF4031/10 28-WF4031/15
      50 mm 28-WF4051/5 28-WF4051/7 28-WF4051/10 28-WF4051/15
      70 mm - 28-WF4071/7 28-WF4071/10 28-WF4071/15
      100 mm - - 28-WF4101/10 28-WF4101/15
      150mm - - - 28-WF4151/15


      Top cap / Vacuum top cap
      New top caps differ only with respect to the diameter of the specimen, they are independent on the triaxialcell in use.
      28 – WFxxx/YY
      xxx = refers to specimen dia.
      032 = 38mm
      052 = 50mm
      072 = 70mm
      102 = 100mm
      152 = 150mm
       
      YY = refers the presence or not of the vacuum connector
      AV = YES vacuum connector

      Specimen dia. Top Cap  Vacuum top Cap 
      38 mm 28-WF4032/A 28-WF4032/AV
      50 mm 28-WF4052/A 28-WF4052/AV
      70 mm 28-WF4072/A 28-WF4072/AV
      100 mm 28-WF4102/A 28-WF4102/AV
      150mm 28-WF4152/A 28-WF4152/AV

      Sample accessories

      Specimen dia. [mm]
      Description
      Ø38 Ø50  Ø70 Ø100  Ø150
      Disc Perspex WF4033 WF4053 WF4073 WF4103 WF4153
      Pair of porous disc WF4034 WF4054 WF4074 WF4104 WF4154
      Membrane, 10 pc. WF4035 WF4055 WF4075 WF4105 WF4155
      O ring, 10 pc. WF4036 WF4056 WF4076 WF4106 WF4156
      Membrane stretcher WF4031/A WF4051/A WF4071/A WF4101/A WF4151/A
      O ring placing tool WF4031/B WF4051/B WF4071/B WF4101/B WF4151/B
      Two parts split mould WF4031/D WF4051/D WF4071/D WF4101/D WF4151/D
      Lateral filter drains
      (pack of 50)
      WF4031/E WF4051/E WF4071/E WF4101/E WF4151/E
      Filter discs (pack of 100) WF4031/F WF4051/F WF4071/F WF4101/F WF4151/F
      Hand sampler WF4031/G WF4051/G WF4071/G WF4101/G --
      Two part split former with  vacuum attach. WF4031/H WF4051/H WF4071/H WF4101/H WF4151/H

      Note. Triaxial cell and accessories for 35 mm dia. samples available on request

      Other accessories

      28-WF4005/E
      Extension test accessory for rigid connection to the ram of the banded cell

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