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Rock Testing Instruments
Brazilian Test Apparatus
The instrument is designed to test specimens from 50 mm dia to 100 mm dia having thickness equal to half the diameter. A pair of loading jaws, designed so as to contact a disc shaped sample at diametrically opposed surfaces over an arc of contact of about 10 degrees at failure, is supplied. The set of jaws supplied with the equipment is designed for 50 mm dia specimen and therefore it is essential to order jaws for respective sizes, if other diameter samples are to be tested. A set of plain platens are provided with the jack which enable testing of cube and circular specimens up to 50 mm size for compressive strength.
Meets:- IS: 10082
The outfit consists of
Pavement Core Cutting Machine
It is widely used for cutting the pavement. The machine is fitted with a cutter of 16?/14? dia. and has an arrangement to adjust the height of the cutter with the help of a wheel on the upper side. It has a coolant arrangement in the form of a water tank. The machine is duly fitted with belt guard and cutter guard. The machine is driven by 5 H.P. Crompton Greaves diesel engine. The machine is duly fitted with rubber tyers which makes it easy to shift the machine
Rock Toughness Tester
It is a kind of impact machine which is widely used for testing the toughness of Rock and has the following features:-
Flat Jack Outfit
The equipment comprises the following
Triaxial Testing Of Rocks
Triaxial Testing System
The strength, of most rocks, increases considerably with increase of confining pressure. The design engineer needs to carry out triaxial tests at a range of confining pressures, in order to determine the strength at the required confining pressure. To suit individual requirements, a wide range of instruments listed below is offered.
These cells are designed to withstand a lateral pressure of 150 bar (150 kg/cm2). Four no-volume change valves are fitted to the base for measurement of pore pressure, top drainage, and bottom drainage and for entry/exit of cell pressure. The cell is nickel-plated and completely rustproof, hardened and ground pedestals and top loading pads with suitable cantering arrangements for different sample sizes are provided. The lower pedestals are provided with radial grooves. The top-loading pad is provided with spherical seating. Two port holes are provided to observe the sample during the assembly stage.