Front Loading Oedometer
- Wykeham Farrance - 26-WF0302
BS 1377:5, ASTM D2435, ASTM D3877, ASTM D4546, AASHTO T216, NF P94-090-1...
- Rigid aluminium alloy frame
- 3 lever arm position: 9:1, 10:1, 11:1. Max loading 1848 kg
- Can be fitted with traditional dial gauge or linear transducer for connection to the Geodatalog data acquisition and processing system
The oedometer consolidation test determines the rate and magnitude of consolidation of a soil specimen restrained laterally and subjected to a number of successive vertical load increments.
The oedometer apparatus has a rigid aluminium alloy frame which avoids distortion under load. The lever arm assembly is supported in precision self- aligning bearings. Consolidation cells, dial gauge/displacement transducer, weight sets and bench are not included and have to be ordered separately (see Accessories).
Accessories | ||||
Weight sets | 26-WF0230/C2 | Weight set, 64 kg in total, comprising: 2 x 0.25, 1 x 0.5, 1 x 1, 1 x 2, 1 x 4 and 7 x 8 kg weights. | ||
26-WF0230/D2 | Weight set, 80 kg in total, comprising: 2 x 0.25, 3 x 0.5, 1 x1, 1 x2, 3 x 5 and 6 x 10 kg weights. | |||
Mechanical (analogue) Measuring device | 30-WF6401 | Dial gauge, 10 mm travel, 0.002 mm resolution. | ||
Permeability attachment | 26-WF0338/A | Permeability attachment with 50 ml graduated burette. Complete with clamps, stand and rubber hose for connection to the cell. Weight 4 kg. | 26-WF0338/A fitted to the 26-WF0302 with cell 26-WF0320 | |
Consolidation bench | 26-WF0312 | Bench for up to three oedometers. Weight 30 kg | ||
Electronic measuring devices | 30-WF6207 | Linear potentiometric transducer, 10 mm travel. Note: in case displacement transducer is supplied complete with data acquisition system, then a traceable calibration certificate on request. | ||
Data acquisition and processing system | 30-WF6016/T1 | Consolidation Geo-Analysis template conforming, to BS 1377:5. | ||
30-WF6016/T8 | Consolidation Geo-Analysis template conforming, to ASTM D2435. |
Load pad | ||
Clamping ring | ||
Upper porous disc | ||
Cutter | ||
Fixing ring | ||
Lower porous disc | ||
Wall | ||
Base | ||
Exploded view of consolidation cell 26-WF0320 |
Consolidation cells and spare parts | |
Suitable for both fixed ring oedometer consolidation and falling head permeability tests. The cell is constructed of aluminium and comes complete with all the parts illustrated in the exploded view. |
Weight application guide |
This information is intended to make it easy to select the weight set that is appropriate for the cell size, the beam ratio and the maximum load applied |
Cell model | 26-WF0320 Beam ratio 1:10 | 26-WF0321 Beam ratio 1:11 | 26-WF0325 Beam ratio 1:10 | 26-WF0326 Beam ratio 1:9 | 26-WF0335 Beam ratio 1:10 |
For max. pressure | 32 kg/cm2 - 64 kg/cm2 | 20 t/ft2 - 40 t/ft2 | 16 kg/cm2 - 32 kg/cm2 | 16 kg/cm2 - 32 kg/cm2 | 8 kg/cm2 - 16 kg/cm2 |
Weight set 26-WF | 0230/C2 - 0230/C2 | 0230/C2 - 0230/C2 | 0230/C2 - 0230/C2 | 0230/D2 - 0230/D2 | 0230/D2 - 0230/D2 |
Add. weight 27-WF | (-) - 8 x 0275/A | (-) - 8 x 0275/A | (-) - 8 x 0275/A | (-) - 8 x 0277/A | (-) - 8 x 0277/A |
Total weight kg | 64 - 128 | 64 - 128 | 64 - 128 | 80 - 160 | 80 - 160 |
Typical consolidation configurations | |||
Standard, with analogue dial gauge | |||
Code | Quantity | Descrption | |
26-WF0302 | 1 | Front loading oedometer | |
26-WF032 X(1) | 1 | Consolidation cell | |
26-WF0230/C2 | 1 | Weight set, 64 kg in total | |
30-WF6401 | 1 | Dial gauge, 10 mm x 0.002 mm divisions | |
26-WF0312 | 1 | Consolidation bench for up to 3 oedometers | |
(1) to be selected | |||
| |||
With digital data acquisition and processing | |||
Code | Quantity | Description | |
26-WF0302 | 1 | Front loading oedometer | |
26-WF032 X(1) | 1 | Consolidation cell | |
26-WF0230/C2 | 1 | Weight set, 64 kg in total | |
30-WF6207 | 1 | Linear potentiometric transducer, 10 mm travel | |
30-WF6042 | 1 | Transducer extension cable, 6 m long | |
82-P9008/ELT | 1 | Set of four cables | |
30-WF6008 | 1 | Geodatalog, 8-channel data acquisition system | |
0-WF6016/T1 | 1 | Geo-Analysis template to BS or Geo-Analysis template to ASTM | |
30-WF6016/T8 | |||
26-WF0312 | 1 | Consolidation bench for up to 3 oedometers | |
(1)to be selected |
Standards
BS 1377:5 | ASTM D2435 | ASTM D3877| ASTM D4546 | AASHTO T216 | NF P94-090-1 | NF P94-091 | UNE 103-405 | UNE 103-602
- Max loading (using 11:1 lever arm ratio): 1848 kg, corresponding to 9.061 MPa (92.40 kgf/cm2) on a 20 cm2 specimen (50.47 mm diameter)
- Overall dimensions: 500 x 200 x 750 mm (height without hanger x width x length)
- Weight: 21 kg (approx.)
Code 26- | Specimen Dimensions (dxh) mm | Specimen area cm2 | Cell dim. (dxh) mm | Weight (kg) | Calibration disc, code 26- | Upper porous disc code 26- | Lower porous disc code 26- | Cutting ring code 26- |
26-WF0320 | 50.47 x 20 | 20 00 | 139x14 | 1.3 | WF0320/9 | WF0320/4 | WF0325/10 | WF0320/3 |
26-WF0321 | 63.50 x 20 | 31.67 | 139x14 | 1.3 | WF0321/9 | WF0321/4 | WF0326/10 | WF0321/3 |
26-WF0325 | 71.40 x 20 | 40.00 | 139x14 | 1.3 | WF0325/9 | WF0325/4 | WF0325/10 | WF0325/3 |
26-WF0326 | 75.00 x 20 | 44.16 | 139x14 | 1.3 | WF0326/9 | WF0326/4 | WF0326/10 | WF0326/3 |
26-WF0335 | 112.80 x 25 | 100.00 | 200x74 | 3.0 | WF0335/9 | WF0335/4 | WF0335/10 | WF0335/3 |
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