Standard Triaxial Cells

These cells essentially consist of a transparent polycarbonate chamber which has a top plate with a piston assembly fitted into it and a double flange base fitted to the bottom.

Three (or six) simple thumbscrews are used to clamp the upper part of the cell to the base, which makes assembly and disassembly a very quick and simple operation. The base of the cell has four inlet points for top drainage/back pressure, cell pressure and base drainage/pore water pressure. Two of these are supplied with special no-volume-change valves. Pedestals, top caps, porous discs, rubber membranes and O-rings are not included and have to be ordered separately.
 

Specifications
Models	28-WF0410/A	28-WF0411/A	28-WF0416/A
Products
Nominal sample diameter, mm	50	70	100
Sample diameter range, mm	35 à 50	35 à 70	70 à 100
Maximum working pressure, kPa	1700	1700	1700
Maximum cell height, mm	450	500	560
Cell diameter, mm (inc. valves)	270	310	340
Weight, kg (approx.)	5	8	15
No. of inlet points	4* (for top drainage/back pressure, cell pressure and base drainage/pore pressure)
Effective stress/Total stress testing	OK	OK	OK
Ordering Information	Standard triaxial cell for 35, 38 and 50 mm diameter samples.	Standard triaxial cell for 35, 38, 50 and 70 mm diameter samples.	Standard triaxial cell for 70 and 100 mm diameter samples.
* Two valves are already included, the other two must be ordered separately.

	Legend
	1. Pedestal. Used to adapt the triaxial cell base for different sample sizes. Supplied complete with a solid disc for tests without drainage.
	2. Top cap. Used to spread the load evenly over the whole cross-sectional area of the sample when drainage to the top of the sample is required. Includes a nylon tube and connector for the drainage line
	3. Porous disc. Acts as a filter ensuring that the passage of water into and out of the sample is evenly spread over the whole cross-sectional area. Two are required - one for the top of the sample and one for the base
	4. Rubber membrane. Provides a protective waterproof barrier around the sample. Made of rubber latex and supplied in packs of 10.
	5. O-rings. Used to seal the membrane against the pedestal and the top cap at either end of the sample. Supplied in packs of 10.
	6. Membrane stretcher. Used to the membrane open so it can be easily placed over the specimen without any disturbance.
	7. Filter paper drains. Used as side drains when specimens have low permeability. They are particularly useful when saturating clays before consolidation and shearing. Pack of 50.
	8. Split sand former. A specially designed piece of equipment for use when preparing non-cohesive soils which otherwise could not be mounted in a triaxial cell.
	9. Drainage burette. 10 ml capacity burette used to prepare non-cohesive specimens by applying a negative pressure to the base of the specimen and for measuring drainage into and out of the specimen when testing with the specimen open to the atmosphere. Supplied with connections for triaxial cell.
	10. O-ring placing tool. Used for applying the O-rings with the minimum disturbance to the sample.
	11. No-volume-change valve. Identical to the two valves supplied with the triaxial cells and used for opening and closing the base drainage line whenmeasuring pore pressure or fitting the drainage burette.
	12. Split mould. Used for trimming the ends of undisturbed soil specimens.

Triaxial cell and sample accessories

Other accessories