DIGITAL TRIAXIAL SHEAR TEST APPARATUS- FOR 38 MM DIA SPECIMEN - FOR UU TEST

Compliance Standards :

IS : 2720 Part XI & XII

Tri-axial Testing Machine with Data Acquisition System Comprising of the following :-

Digital Load Frame :

1. It is an Advanced version of mechanical load frames. In this load frame rate of strain is controlled through combination of electronic and servo motor. The unit operates on 220 Volts 50 Hz single Phase supply
   

Specification :

1. Capacity of the load frame - 50 kN
2. Vertical Clearance - 325 mm
3. Horizontal Clearance - 325 mm
4. Platen Diameter - 150 mm
5. Platen speed - 0.0001-9.9999 mm/min
6. Weight - 110 kg App.
   

Triaxial cell :

1. Stationary bushing as per IS 2720 part XII for 38 mm dia specimen x 76 mm long.
2. Consisting of Perspex chamber, anvil, loading pressure up to 10.5 kg/cm2 with oil plug, air vent and no volume change type valves and kit.
3. Kit consists of plain Perspex disc pair 38 mm dia x 6 mm thick, metal/Perspex top loading pad, two way split former, pair of porous stones sheath.
4. Stretcher - 12 nos, Rubber sheaths - 08 nos. 'O' rings one drainage connection including. 3 part split former with collar, base plate, hinged clamp.
5. End former for 2 mm bore x 4 mm triaxial cell will be compatible for electronic outfit system.
6. Power Supply : 220-240 V, A.C. 50 Hz, single phase
   

Foot Pump To Apply Pressure

Lateral Pressure Assembly

1. The apparatus consists of a pressure chamber which has a flanged top cap fitted with a 10 Kg/Cm2 Pressure gauge and a valve for pumping in air. Water inlet and drain cock are fitted to the chamber. The foot pump supplied easily develops a pressure of 10 Kg/Cm2. Complete with connecting pressure hose.
   

Electronic Data Acquisition

1. The TWO Channel micro controller base signal conditioning & touch panel display unit is suitable to measure Axial Load & vertical displacement directly indicated in their respective engineering units during Triaxial testing. The system receives the output signal from the sensor i.e Load cell attached to the Triaxial Shear Test apparatus. The data of all two channels of Triaxial shear test can be transferred to computer through Ethernet & can be online monitored. The unit also provides the facility of online monitoring of data of all the sensor on Touch Panel Display provided at the front. Broadly the following facilities are incorporated in the system:
2. Touch Panel is provided to perform various operations such as TARE,PROGRAMMING,START,STOP etc  
3. Automatic data saving on stop bottom there are 25 set result having maximum of 200 data points per set can be stored in the electronic unit. The sample number can be programmed.
4. Online data & time of test will be stored along with the data.
5. Online (while the test is in progress) data transfer to the computer through Ethernet port.
6. Note - The Electronic unit operates on 220V AC+ 10%,50Hz
   

Sensor Specification :

1. Load Cell
2. Capacity :1000 kg
3. Type : S -Shaped
4. Excitation Voltage : 10VDC
5. Nominal output : 3.0m V/V
6. Non-Linearity : 1000 M Ohms
7. Safe Over Load : 150% of rate capacity
8. Ultimate Over load : 250% of rated capacity
9. Temp. Range : 0° to 60° cc
10. Temp. Effect on output : <1.0015% FSO/Degree CC
11. Temp. Effect on zero : <1.0020% FSC/Degree
    

LINEAR VARIABLE DIFFERENTIAL TRANSFORMER (LVDT) :

1. Stoke : = +/- 20mm
2. Linearity Deviation =1% of rated capacity
3. Repeatability : +/- 0.1% of rated capacity
4. Hysteresis : +/-0.5% of rated capacity
5. Excitation :2- volt rms 2 KHz sinusoidal
6. Sensitivity : 1m V/V/mm
7. Safe Temperature Range: 0° -50° cc
8. Core Fixture : Spring Loaded Plunger
   

Note :

1. Additional accessories Viz. Universal Triaxial Cell to test up to 100 mm size soil sample, Split Molds, Three Part split Molds, Sample extractor etc. can be quoted on request. It is essential to use the Instrument with Servo Voltage Stabilizer. Warranty void in case of Non Compliance.
   

Click here for working video : https://www.youtube.com/watch?v=ly6QK0RU3ME