The range of ELE designed and manufactured load frames is the most modern of its kind available to the discerning test laboratory. The range comprises capacities of 50 kN incorporating the latest microprocessor control systems, clear on-board screen displays and a range of other high quality features.
It is particularly important that water from which dissolved air has been removed is used in the pore pressure measurement system and saturation procedures. Any dissolved air in the water will lead to errors in the measurement of pore pressure, particularly at low pressures, and also give slow or incorrect saturation results.
|Model No.||Self-Contained||Capacity, litres|
|25-1833/01||Yes||15 L||info »|
• Working pressure up to 1700 kPa
• All round visibility
• Sample sizes 38 to 100 mm diameter
• Rapid assembly and dismantling
• Accepts a range of interchangeable submersible load transducers
• Maximum piston load 45 kN
This range of precision made triaxial cells has been designed to meet the requirements of the modern soils laboratory. The cells have been treated to minimise corrosion. Particular attention has been paid to the quality of finish between the piston and the head. Final assembly includes the fitting of an O-ring seal and the use of special lubricant to reduce friction to a minimum and eliminate water leakage.
The piston load capacity is designed to accept high horizontal forces which may be present during the final stages of a test. Each cell has five take-off positions drilled in the base for top drainage/back pressure, pore water pressure and bottom drainage. Two no-volume change valves and an anvil for strain gauge/transducer datum are supplied for fitting to the cell.
A feature of these cells is that they all accept a single diameter piston. The internal height is such that a range of submersible load transducers can be fitted without any modification. Each cell will accept a range of base adaptors and various accessories for testing a wide range of specimens
|Model No.||Cell Size||Weight, kg||Max. Specimen Size||Vertical Clearance||Horizontal Clearance|
|25-4157||100 mm||14.3 kg||100 x 200 mm||515 mm||255 mm||info »|
|25-4117||70 mm||7.3 kg||70 x 140 mm||430 mm||180 mm||info »|
|25-4047||50 mm||4 kg||50 x 100 mm||380 mm||155 mm||info »|
Various methods of measuring axial displacement, load, pressure and volume change can be supplied. All devices comply with the accuracy specified in BS 1377; ASTM D2850, D4767. All transducers transducers are supplied with a calibration certificate.
The provision and use of constant pressure systems in the geotechnical laboratory is essential if testing methods and equipment are to be fully utilised. Generally a number of independent and variable pressure sources will be required in a laboratory. Accurate and reliable monitoring systems will also be required, which may range from a single pressure guage through a whole series of transducers.