Point Load Index Tester
IS: 8764 -1978
Point Load Strength Index of rock cores and irregular lumps, which may be
tested without any treatment. The Point Load Test is primarily an Index Test
for strength classification of rock materials. This instrument is mainly
intended for field measurements on rock specimen, but it can also be used in
the laboratory. The results of the test may also be used to predict the
uniaxial compressive strength of rock from correlations. The apparatus is
light and portable, and can be used in the laboratory as well as in the
field
- Equipment is light and portable
- Rock core specimens can be tested without any preparation
- The instrument can be used in the laboratory as well as at the
drilling site
- With this instrument, a wide range of core sizes can be tested
- The results of the test may also be used to predict the uniaxial
compressive strength of rock
The frame has adequate adjustments to align perfectly the loading axis
passing through the centre of the bearing plates and loading platens at
position of the ram of the hydraulic jack. The equipment comprises the
following
Loading Frame fitted with Hydraulic Jack, hand operated, capacity
100 kN (10,000 kgf)
Pressure Gauge 25 kN (2,500 kgf), to read upto 0.25 kN (25 kgf)
Pressure Gauge 100 kN (10,000 kgf), to read upto 0.50 kN (50 kgf)
Conical Loading Platens
Diaphragm Bolt
Polishing and Lapping Machine Features
- Compact table model
- 20 cm dia Top and Adopter to hold polishing cloth or paste
- Sample Holders to accommodate upto NX size Cores
- Continuous water feed arrangement during operation
This bench mounted, single spindle lapping machine is ideally suited
for the final polishing of mounted rock or concrete specimens.
Two sample holders of sample size ordered for are provided with each
machine as standard supply. Sample holders of other sizes can also be
provided on request. This is a motor driven unit with 450/500 rpm. A
swing-in tap, for continuous water supply during operation, is also
provided. This unit is operated by a single phase, 230 V, AC motor.
Slake Durability Apparatus
IS: 10050-1981
- For determination of resistance offered by rock to weathering and
disintegration when subjected to immersion in water
- Facility to test upto four sets of samples
- Quick couplings for assembly and removal of drums
The apparatus consists of a motor on baseboard capable of driving two or
more drums at a speed of 20 rpm. A suitable number of plastic water troughs,
each designed to contain a test drum with quick release drive assemblies,
permit 1 to 4 drums to be driven at one time. The test drums are supported
on water lubricated bearings allowing 40 mm unobstructed clearance below the
drum and a trough water level 20 mm below the axis of the drum. Drums are
made of brass and comprise 2 mm wire mesh cylinders of 140 mm dia and 100 mm
length. The equipment consists of
Base Board with Motor Drive assembly with two drum and tank assemblies.
Suitable for working at 220 V, Single phase, AC supply.
Extra
Pair of Drums and Tank Assemblies including coupling, to enable upto
4 test drums to be driven at a time
Electrical Timer 0-30 min
Features
