This test determines the rate and magnitude of consolidation of a soil specimen restrained laterally and subjected to a number of successive increments of vertical loads. In this automatic model, the incremental loading, in the load (stress) or swelling (strain) mode, is fully automatic for a practical and accurate test execution with more reliable test results. The ACE unit, the SHEARMATIC Automatic shear testing machine and AUTOTRIAX Automatic triaxial test systems, are the unique equipment for the complete automation of a CST (Consolidation, Shear, Triaxial) Soil Mechanics laboratory in the different configurations. See Automatic Soil Mechanics Laboratory.
The ACE, Automatic Computerized oedometer, consists of a small and compact load frame housing two coaxial pneumatic cylinders: the smallest one for low loads and the other for higher loads, with automatic switch off from one to the other when needed. The load is controlled by a high precision pneumatic servo-valve. Two analogue channels: one for the displacement transducer and the other for the load cell with closed loop feedback control. The test end can be programmed on a time or on a step bases. The software can control from a single PC, up to 60 ACE units enabling the operator to choose from single to multiple control.
Test parameters are previously specified by the operator and set in the ACE software. Test results are recorded and displayed in real time on the PC and calculation are performed automatically. The test data can be processed by one of the Geo-Analysis Templates conforming to the BS or ASTM Standards.
The frame can accept all standard consolidation cells: from 50.47 to 112.80 mm dia. Consolidation cells, Geo-Analysis templates and test software not included. See acc essories. PC not included.
|Maximum Vertical Load||15 kN|
|Load Cell Cap||15 kN|
|Displacement Transducer||10 mm maximum travel|
|Maximum Air Pressure Supply||10 bar. If the air pressure line is not available in the laboratory, our Air compress model NG-D2015, 50L capacity may be used|
|Sample Dimensions||From 50.47 to 112.8 mm diameter using our consolidation cells. See accessories|
|Software||Can control up to 60 ACE units (not included, see accessories)|
|PC Connection||LAN Connection to PC|
|Test Data Accuracy||±1%|
|Overall Dimensions||28 x 30 x 60 cm|
|Approximate Weight||25 kg|
To perform either standard or permeability testing:
|Model||Specimen Dia. x Height [mm]||Specimen Area [cm2]||Cell Dimension Dia. x Height [mm]||Weight [kg]||Calibration Disk|
|NG-WF0320||50.47 x 20 mm||20 cm2||139 x 74 mm||1.3 kg||NG-WF0320/9|
|NG-WF0321||63.50 x 20 mm||31.67 cm2||139 x 74 mm||1.3 kg||NG-WF0321/9|
|NG-WF0325||71.40 x 20 mm||40 cm2||139 x 74 mm||1.3 kg||NG-WF0325/9|
|NG-WF0326||75 x 20 mm||44.16 cm2||139 x 74 mm||1.3 kg||NG-WF0326/9|
|NG-WF0335||112.80 x 25 mm||100 cm2||200 x 74 mm||3 kg||NG-WF0335/9|
GenMoist is designed to automatically and simultaneously dry and weight a solid sample for the determination of moisture content. The machine provides a continuous direct readout for both the weight and the percentage moisture loss through the entire cycle. It has a build-in timer.
The new MULTISPEED tester is the ideal solution for Road testing laboratory. The 50 kN capacity and the fully variable test speed of 0.2 to 51 mm/min make it possible to perform not only the CBR and Marshall tests, but many other applications as for instance Indirect Tensile test, Quick Triaxial tests, Unconfined and Uniaxial soil testing and, in general, all test to be performed under displacement control. The machine can be equipped with analogical or digital load/displacement measurement systems as well as with the specific accessories, to suit either the field or central laboratory requirement.
Dynatriax systems are ideal for commercial and research laboratories for the following applications: Liquefaction potential, Strength degradation due to cyclic loading, Shear modulus and damping ratio, resilient modulus, Effects of blasting in mines and quarries, Effect of ocean waves on costal and off shore structures.
This test determines the rate and magnitude of consolidation of a soil specimen restrained laterally and subjected to a number of successive increments of vertical loads.
The SHEARMATIC 300 automatic machine is ideal for testing geosyntetics and also soil and other materials that contain large particles of up to 20 mm largest dimension. Sample size up to 300 mm square can be tested, with inserts allowing the testing of smaller sample sizes. See accessories.
RESONANT COLUMN combines the features of both resonant column and torsional shear into a single unit including the current driven motor to apply torsional load to sample, a series of transducers with signal conditioning, a cell and back pressure electro-pneumatic control system and a data logger.
The microprocessor control system, therefore, allows the machine to work as an automatic stand-alone unit: the test measurements (force and displacements) a re directly displayed and stored in memory according to pre-set recording modes. The PC is only temporary required to download the test data via the RS 232 port once the test is completed. The data can be processed by the Direct and residual shear Geo-Analysis templates. See accessories.
This microprocessor based advanced model, is a stand-alone machine, driven by a high-resolution stepper motor with epicyclical reduction gear with reduced backlash. Incorporate a pneumatic closed loop system for the automatic application of the axial pressure by a high performance pressure regulator, with the main advantage of eliminating the manual loading of the dead weights. Excellent and high resistance techno-polymeric material has been adopted for the carriage of the shear box. It offers excellent resistance to corrosion, wear and tear and is resistant to all chemicals found in a soil specimen. The carriage is lightweight and easy to clean.
The laboratory vane apparatus is based on an original concept of the Transport and Road Research Laboratory of the United Kingdom. It can be provided with a wide range of vane sizes, although as standard, it is sold with the 12.7 mm square vane and a set of four calibrated springs. The test can be performed directly on the sample or in the sample contained in the sampling tube. In this case the NG-WF1736 Attachment for 38 and 100 mm dia. sampling tubes, should be used. See accessories.