This system has been developed for the laboratory measurement of the hydraulic conductivity (coefficient of permeability) of water saturated porous materials. The test is performed using a triaxial cell fit with 5 no-volume change valves: 2 for upper drainage, 2 for lower drainage and 1 for water pressure. The cell is connected with three independent pressure systems for the cell fluid, the drainage line to the top of the specimen and the drainage line to the base of the specimen. The complete test system includes:
- Triaxial cell with accessories for 38, 50, 70 or 100 mm specimens
- Pressure control panel, three pressure lines
- Bladder type air/water pressure system
- De-airing water system and accessories
The test can also be performed with three triaxial cells.
Permeability testing system for water-saturated porous materials
The system includes a number of standard testing items which are listed in the following table.
Typical configuration of a system for permeability test on one triaxial cell for 70 mm* dia specimens
1x 28-WF4070 Banded triaxial cell 70 mm dia
1x 28-WF4071/7 Pedestal
1x 28-WF4072/A Top cap with drainage leeds
1x 28-WF4074 Pair of porous discs
1x 28-WF4075 Rubber membranes (10 pieces)
1x 28-WF4076 O ring (10 pieces)
1x 28-WF4071/A Membrane stretcher
1x 28-WF4071/B O ring placing tool
1x 28-WF4071/C Three parts split mould
1x 28-WF4071/D Two parts split former
1x 28-WF4071/F Filter discs (100 pieces)
1x 28-WF4071/G Hand sampler
2x 28-WF6300 Pressure transducer
2x 28-WF6310 De-airing block
1x 28-WF4450 3 channels digital readout unit
1x 28-WF4331 Triaxial panel for three pressure lines
1x 28-WF4330/2 Digital pressure gauge
3x 28-WF4320 Bladder air/water cylinder
2x 28-WF4400 Double burette volume change apparatus
1x 28-WF4221/A De-airing tank, 23 liters capacity
1x 28-WF2001 Vacuum pump
1x 86-D2005 Air drying unit
1x 86-D0819 Silica gel with indicator, 1000 g
2x 86-D2064 Rubber tube for vacuum
1x 28-WF4225 Valve panel for de-airing tank
1x 86-D2015 Air compressor
1x 28-WF2016/2 Air filter/water trap for air compressor
2x 28-WF4191 Nylon tube ID 6 x OD 8 mm, 20 m
*The test can be, obviously, performed with other cell and sample diameter, selecting the items conforming to the above criteria.
Middelblok 134
2831 BP Gouderak
Nederland
+31 (0) 182 30 31 60
info@abmbv.nl