ROCK TESTING EQUIPMENTS

Point Load Index Tester, is used for determining the Diametral Point Load Strength Index of rock cores and irregular lumps which can 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. It can be used in the laboratory as well as in the field.

Salient Features:

Rock core specimens can be tested without any preparation.

The results of the test may also be used to predict the uniaxial compressive strength of rock.

With this instrument, a wide range of core sizes can be tested.

The frame has adequate adjustments to align perfectly the loading axis passing through the centre of the bearing plates and Loading

The core cutting/core drilling machine is diesel engine operated powered road building drill has been designed specifically for the purpose of drilling tests, which include:

Specifications:

· Height : 1300 mm

· Base : 600 x 1200 mm

· Head travel on rack : 350mm

· Drill speeds : 900 R.P.M. for soft samples and 350 R.P.M. for hard Samples

· Water swivel : Built in the machines.

Accessories:

· Thin wall diamond bits and core barrel

Brazilian Test Apparatus - The instrument is useful for testing specimen from 50mm dia to 100mm and of thickness of half the diameter. This is to test for indirect measurement of tensile strength of rocks. The specimen is held in circular jaws, this is primarily similar to a compression machine and consists of a small load frame having sturdy base with two vertical threaded rods and an adjustable cross head. The hydraulic jack is fitted at the centre of the base of the load frame. The jack of the load frame is self retracting and two plain platens are supplied. A pressure gauge capacity 0-100 kn x 1 kn is fixed at the base of jack. A maximum pointers is also provided on the gauge, a pair of semi circular platens for 50mm dia samples also provided. The instrument can be used in field also.

Optional Extras :

Pair of jaws for samples dia (a) 60mm (b) 70mm (c) 80mm (d) 90mm (e) 100mm