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Shivam Instruments India Shivam Instruments India Shivam Instruments India Shivam Instruments India Shivam Instruments India Shivam Instruments India
Shivam Instruments IndiaShivam Instruments IndiaShivam Instruments India
Shivam Instruments India
Shivam Instruments India
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Brazilian Test Apparatus
IS: 10082
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. The outfit consists of
Loading Frame fitted with hand operated Hydraulic Loading Jack of 200 KN capacity provided with self-retracting Piston, pair of Plane Platens
Pair of Semi-Circular Jaws for 50 mm dia samples
Load Gauge 0-200 kN x 2 kN capacity, provided with maximum Load Indicator
Pair of Jaws for 60 mm dia samples
Pair of Jaws for 70 mm dia samples
Pair of Jaws for 80 mm dia samples
Pair of Jaws for 90 mm dia samples
Pair of Jaws for 100 mm dia samples.
Shivam Instruments India
Constant Pressure System:
This is a Dead-Weight type constant pressure system. This system consists of an oil pump, continuously driven by an electric motor to provide the required pressure to the Triaxial Cell chamber. Capacity: 160 bar (160 kg/cm2)
Core Cutting and Grinding Machine Features This unit is designed for cutting and grinding cylindrical rock specimen's upto NX size. The outfit includes 200 mm dia diamond impregnated cutter, a fine diamond, impregnated grinding wheel a water supply system and sample holder
A V-Vice, to enable the sample upto 55 mm dia x 140 mm long to be cut parallel and square to the longitudinal axis is provided. Reversing the specimen and holding against the vice can prepare cores longer than 140 mm. A hand feed arrangement is provided to facilitate the specimen with a uniform and smooth feeding motion. This unit is operated on single phase, 2 HP, AC motor.
Core Drilling Machine
Heavy duty, pillar type frame with continuous rated 2 HP, single phase, AC motor Varying cutting feeds provided with water-fed swivel head to connect tosuitable water supply. Provision at base for water collection/drainage Core preparation from regular and irregular samples Core size : EX to NX Clamping arrangement to hold specimens with regular/irregular shapes to the base of machine Four cutting speeds of 600, 800, 1100 and 1500 rpm
Following Core Bits are available as options
Core Drilling Bit 21.46 mm dia (EX size)
Core Drilling Bit 30.10 mm dia (AX size)
Core Drilling BitCore Drilling Bit
Core Drilling Bit 42.04 mm dia (BX size)
Core Drilling Bit 54.74 mm dia (NX size)

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In - Situ Stress

For measuring in-situ rock stress close to the surface of excavation. The method consists of cutting a slot, thereby relieving the stresses perpendicular to the slot, resulting in the deformation of the slot, which is measured. Flat Jack is then embedded in the slot and grouted. Hydraulic Pressure is applied through the flat jack until the displacements, which took place on slot cutting, are reduced and finally cancelled. By measuring the cancellation pressure in two mutually perpendicular directions, the in-situ stress close to the rock surface can be assessed approximately

Flat Jack Outfit.
The equipment comprises the following
Flat Jack 30 cm x 30 cm 1 No.
Hydraulic Pump hand operated, with 15 cm dial Pressure Gauge of 70 kg/cm2 capacity with flexible Pressure Pipe of 1 m length 1 No.
Deformeter consisting of a Dial Gauge having 10 mm travel and 0.002 mm least count, and two interchangeable Stems for 150 mm and 250 mm gauge length 1 Set
Standard Bar 1 No
Reference Pins 6 Nos.
Note Flat Jacks of other different capacities also be manufactured on request
Shivam Instruments India
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
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 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.
Shivam Instruments India
Slake Durability Apparatus
IS: 10050-1981
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.
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
Shivam Instruments India
Rock Bolt Pull Out Test
BS- 11309, ASTM D-4435
These are used to measure the working and ultimate capacities of rock bolt anchors. Further, our products comprises of a central hole jack, hand pump with load gauge, directional control valve and only for central hole jacks above the capacity of 500kN, flexible pipes, truss high tensile test rod with coupling. Moreover, the load cell can be used for the measuring of pull out load and arrangement is provided for fixing dial gauge for estimating deflection against the load. In addition to this, we provide different size of adopters with the high tensile test rod.