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Permeability Testing

Permeability testing consists of determining the volume of water passing through a specimen in a known time, under known conditions of effective stress and hydraulic gradient. The two methods in common use in the UK are the BS 1377 : Part 6 method, where the permeability stage is preceded by saturation and consolidation stages, and the Environment Agency accelerated method.

Permeability Testing In Depth

At ACS Analysis with a large number of permeability cells, we are well equipped to carry out permeability testing of clay soils.


Laboratory Testing


  • Moisture content - oven drying method
  • Density - linear measurement
  • Permeability in a triaxial cell
  • Determination of the permeability of clayey soils in a triaxial cell using the accelerated permeability test