PRINCIPLE

A test piece of known dimensions is subjected, under specified conditions, to a steadily increasing compressive load until it fails, that is when it cannot support a further increase in load. The cold compressive strength is calculated from the maximum load indicated at failure and the mean cross-sectional area over which the load is applied.

Compliance With Following International Standards:

EN 12390‑4, ASTM C39, AASHTO T22, IS : 14858 (2000), IS:1528(Part 4)

Automatic Test Execution:

Once the machine has been switched on, the specimen positioned and centered, the only required operations are

Set test parameters ‑ including load rate:

• Press the start button
• Tighten the pressure valve
• The machine automatically: starts the rapid approach; switches to the test speed once the specimen comes into contact with the upper platen; automatically stops the motor upon specimen failure
• Release the pressure valve
• The test execution conforming to Standards can be easily proved.
• Working on 240V, 50‑60Hz, single phase.
• Dual stage pump assuring fast piston approach and precise test execution
• Test execution conforming to EN 12390‑4, ASTM C39, AASHTO T22, IS:1528(Part 4)
• Controllable pace rate from 1 KN/Sec to 10 KN/Sec.
• Auto stop after completion of each test.
• Soft platen‑to‑specimen contact and smooth load rate control from the very beginning of the ramp.

Frame:

• Four column high stiffness welded frame tested for stability.
• Heavy duty spherical seat , allowing initial free alignment at the initial contact with the specimen and automatic jamming up to the end of test.
• Surface hardness of platen is 55 HRC, flatness tolerance 0.03 mm. Traceable certificate of surface hardness available on request.
• Piston travel limit switch (Extra cost)
• Emergency stop button

Salient fetchers of data manager PC software (Optional At Extra Cost.)

• Two way communication i.e machine operates from computer and from the touch screen controller both (Stat, stop, save data and save graph)
• Results directly saved in excel file
• Graph also saved in excel file
• Capable to save customer name, other details of cutomer, ageing of cube moulds, identification mark of the cube mould, date and time of testing
• Capable to print direct report from the computer
• Capable to select different test perameters like pace rate, sample size and area from the computer (software)

NOTE: It is essential to use the machine with 3 KVA servo stabilizer.