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Flexible Wall Permeability Cell Accessories

Gilson’s wide selection of Test Cell Accessories outfit our Test Cells and are compatible with Cells from many other manufacturers. These accessories assure optimum performance in flexible wall permeability testing in accordance with ASTM and AASHTO standards. Products are specific to the sample sizes being tested. Items are sold individually or as part of a kit.

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3in O-Ring Placing Tool
Model: HMA-573
3in Two-Part Compaction Mold
Model: HMA-963
3in Two-Part Vacuum Split Mold
Model: HMA-953
3in Two-Part Miter Box
Model: HMA-973
4in Test Cell Kit
Model: HMA-584
4.0in Filter Paper (Grade 55)
Model: HMA-775
4in Membrane Stretcher
Model: HMA-554
4in Sealing O-Rings
Model: HMA-564
4in O-Ring Placing Tool
Model: HMA-574
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  • Test Cell Kits are required to outfit Test Cells to test specific sample sizes. Kits contain all components for a single sample size required to perform a test. Each kit includes a cap and pedestal, two Porous Stones, two Latex Membranes, and four O-Rings. The anodized aluminum caps have two drain ports and are grooved for O-Rings. Keyed pedestals with flow-through lines prevent pinching of tubing during set up.
  • Porous Stones allow two-way passage of water or permeant during testing and provide solid support at sample ends. Quality aluminum oxide stones have a permeability range of 15 to 18ft³ of air per minute, per square foot, and average pore size of 179μm.
  • Grade 55 Filter Paper is used in flexible wall permeability testing and is equivalent to the Whatman Grade 54 filter paper indicated in a number of ASTM and AASHTO standards. This round paper is available in five diameters ranging from 2.0 to 6.0in (51 to 152mm).
  • Latex Membranes fit tightly around prepared soil specimens to provide a barrier against fluids in the pressurized Test Cell. Standard Latex Membranes are 0.012in thick, and Premium Membranes are 0.025in (0.6mm) thick. Supplied in packages of 12.
  • Membrane Stretchers are aluminum tubes slightly larger than specimen diameters. Fittings on the tube allow the use of a vacuum source to expand the Latex Membranes for easy placement.
  • Sealing O-Rings made of neoprene material fit into grooves around Specimen Caps or Pedestals, and seal the Latex Membranes tightly to protect the specimen from chamber fluid.
  • O-Ring Placing Tool is a simple split-ring design for easy placement of O-Rings without disturbing the sample.
    Porous Stones allow two-way passage of water or permeant during testing and provide solid support at sample ends. Quality aluminum oxide stones have a permeability range of 15 to 18ft³ of air per minute, per square foot, and average pore size of 179μm.
  • Cap & Pedestal Sets include only the anodized aluminum cap and pedestal fixtures for the top and bottom of samples. Other accessories are purchased separately.
  • Two-Part Compaction Molds are used to prepare compacted specimens for triaxial or permeability testing. Granular soils are compacted in a Mold with a latex membrane held in place by a vacuum source. Cohesive specimens are compacted in molds with no vacuum and later fitted in Latex Membranes. Molds for cohesive soils are available as complete assemblies, or as molds only for increased efficiency in sample preparation.
  • Two-Part Compaction Mold Assemblies is a complete unit for holding cohesive soil samples for triaxial or permeability testing.
  • Two-Part Vacuum Split Mold used to compact granular soil specimens for triaxial or permeability testing.
  • Two-Part Miter Boxes have many applications to trim soil samples to precise lengths for triaxial, permeability, unconfined compression, shear, and other tests.