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Consolidation Testing

Table Top Consolidation Apparatus

The Table Top Consolidation Apparatus is a compact machine designed to provide reliable, accurate and reproducible results. The apparatus features a rigid loading mechanism, capable of applying loads for long durations. Load pressures of up to 48 tons per sq. ft. (5,148 kPa) can be generated on 2.5” (63 mm) diameter samples.

Technical specifications:

  • Loading Pressures on 2.5” (63 mm) diameter samples of up to 48 tons per sq. ft. (5,148 kPa) using 11:1 beam ratio.
  • Triple beam ratios of 9:1, 10:1 and 11:1 minimize loading weight requirements.
  • Rigid frame construction ensures accuracy, repeatability and reliability of test results.
  • Integral beam support jack eliminates possible shock to sample during load application procedures.
  • Compact, table top design for maximum space savings in the laboratory.
  • Cast aluminum and plated steel construction for rust resistance and long life.

Automated Consolidation Apparatus

The automated consolidation apparatuses at The Geotechnical Laboratory at Virginia Tech consist of GeoJac Digital Load Actuators mounted on vertical stands. The GeoJac allow the consolidations tests to be performed by the incremental stress or constant rate of strain fashion. Testing can be performed under closed loop control of deformation, load, or pressure. Specimens can be loaded  in a variety of modes, including constant rate of deformation, constant rate of loading, or with a series of step loads.

Our labs also possess several of the Trautwein C200000 back pressure consolidation cells. These cells are designed for use in Constant Gradient or Constant Rate of Strain consolidation testing. The cell design facilitates the backpressure-saturation process, eliminates piston friction, and allows for the measurement of hydraulic conductivity.