Haridarshan Instru-Lab Sarkhej, Ahmedabad, Gujarat

The Vibrating Table produces better concrete Moulds and cylinders by removing entrapped air. It distribute concrete evenly inside the moulds and nearly eliminate the problems of bug holes and air bubbles. General Description and specifications : The Vibrating table is entirely constructed of thick steel. The table top is made of thick mild steel plate and has stops along its edges to prevent moulds from walking off the table during operation. A cross arm adjustable on a vertical rod at the centre of the table is provided to hold the moulds while operating the table. The variable pitch pulley arrangement permits the variation of frequency between maximum of 3600 vibrations down to 2600 vibrations per minute. A speed regulation handle is provided for increasing or decreasing the frequency. The vibrator is mounted on cushioned steel vibrating deck. A switch is provided for starting the motor. Operation on 440 V, three phase, A.C. supply. Table Sizes 50 X 50 CMS 60 x 60 CMS 75 x 75 CMS 100 x 100 CMS

We are engaged in providing high quality Vernier Transit Theodolite for the clients. The Vernier Transit Theodolite is a dependable companion for surveying needs. The Vernier Transit Theodolite has a self contained construction so that all sensitive parts are protected from dust and moisture. Our Vernier Transit Theodolite is equipped with high quality optics to give clear & sharp image. Size 175mm, Internal focusing type, Coated optics ERECT - IMAGE for direct reading, Confirming to I.S. Specifications No. 2988-1975, Watts’s Pattern, Fitted with shifting tribratch and Optical- Plummet arrangement. The instrument is of self contained construction so that all sensitive parts are protracted from dust and moisture. The instrument is equipped with high quality optics to give clear & sharp image. Magnification 23 times All optical parts are blue coated to delete the glare & reflection. Sights are fitted on the telescope to facilitate quick alignment of the levelling staff. The verniers and circles are graduated to 1020 Seconds accuracy & are covered with glass windows to avoid dust and moisture. The eye-piece of the telescope helical type and is suitable for quick setting. The instrument is made from carefully selected brass and gunmetal for convenience in operation and the ability to withstand continuous usage under all conditions without effecting the accuracy or adjustment. The verniers & circles are graduated on embedded Sliver and are covered with glass window. Supplied with all Standard accessories in highly polished wooden box with Special Aluminium Telescopic Tripod Stand.

Brand Name : Bushnell

Application : Industrial

The Veebe consistometer measures the remolding ability of concrete under vibration. The test results reflect the amount of energy required to remold a quantity of concrete under given vibration conditions. The Veebe consistometer is applicable to concrete with slumps less than 2 inches.The apparatus, consists of a metal cylindrical container mounted on a vibrating table, which produces a sinusoidal vibration, a slump cone is placed in the center of the cylinder and filled in the same manner as in the standard slump test. After the slump cone is removed, a clear plastic disk is set atop the fresh concrete. The Veebe table is started and the time for the concrete to remold from the slump cone shape to the shape of the outer cylindrical container is recorded as a measure of consistency. The sliding clear plastic disk facilitates the determination of the end of the test. GENERAL DESCRIPTION AND SPECIFICATIONS Consists of: A vibrating table, size 380mm long and 260mm wide, resting upon elastic support at a height of about 305mm above the floor, complete with start/stop switch cord and plug A holder is fixed to the base into which a swivel arm is telescoped with funnel and guide sleeve. The swivel arm is also detachable form vibrating Table. A graduated rod is fixed on a swivel arm and at its end a plastic disc is screwed. The divisions of scale on the rod record the slump of the concrete in millimeters. Supplied complete with a sheet metal. Container with lifting handles which can easily be fixed to the vibrating table. A slump cone open at both ends with lifting handles and a Tamping rod of size 16mm dia and 600mm long, rounded at one end. AS PER IS : 1199 OPTIONAL ACCESSORIES CONCRETE SCOOPSTOP WATCH  

capacity 200 kg. For cement concrete flooring tiles. The specifications are similar to the above machine, but for the bearing rollers of 25 mm dia and spans of 150, 200 and 250 mm. The load is applied at the rate of 200 kg/min/meter. Without lead shots.

Tile Flexural Testing Machine Capacity 200 kg. for cement concrete flooring tiles. The specifications are similar to the above machine, but for the bearing rollers of 25 mm dia and spans of 150, 200 and 250 mm. The load is applied at the rate of 200 kgminmeter. Without lead shots.

The tile sample is pressed under a specified load against a grinding path strewn evenly with an abrasive powder revolving at the rate of 30 + 1 r.p.m. At the end of 100 revolutions of the disc the second parallel side of the tile is subjected to wear for an equal number of revolutions of the disc. The wear of tile is measured using a thickness gauge. The Abrasion testing machine consists of a replaceable grinding path fitting on to a disc rotating its vertical axis. The rotating disc and grinding path are enclosed by a circular tray. A bracket holds the specimen. The loading is by a counter balanced lever. A funnel is provided to facilitate charging the grinding path with abrasive powder. Supplied complete with automatic preset revolution counter and one 7.5 kg weight but without abrasive powder and thickness gauge. Suitable for operation 230 V, single phase, Ac supply.

Material : MS

Application : Check roughness of steel

the oldest, most widely used test for determining workability. This test is used to determine the workability of fresh concrete, which would normally be undertaken at the point of delivery to ensure the concrete, is of adequate consistency for placement. The test is applicable to concrete of medium workability.the device is a hollow cone-shaped mould. The mold is filled in three layers of each volume. Each layer is rodded with a 16mm steel rod 25 times. The mould is then lifted away and the change in the height of the concrete is measured against the mould. The slump test is a measure of the resistance of concrete to flow under it own weight. general description and specifications : the apparatus comprise of a slump cone with handles made of mild steel sheet, a chrome plated steel tamping rod of 16 mm diameter x 600 mm long, rounded off at one end, with a scale marked on it and a steel base plate with a carrying handle.the mould for the test specimen will be in the form of frustum of a cone having the following internal dimensions as follows. dimensions cm. bottom diameter 20 top diameter 10 height 30 the cone is constructed of metal of at least 1.6 mm thickness and the top and bottom are open and at right angles to the axis of the cone. The mould have a smooth internal surface and provided with suitable foot pieces to a base plate and also handles to facilitate lifting it from the moulded concrete test specimen in a vertical direction as required by the test. The base plate is provided with cleats & swivel handle. optional accessories : concrete scoop.funnel for pouring concrete in cone straight edge

ASTM C 151 also specifies the use of shrinkage bar moulds for the determination of soundness. Length Comparator listed in the concrete section determines the change in length of the specimen. Two models are offered. One is provided with stainless steel smooth reference points and the other is provided with knurled and threaded reference points. Both the models are available as single mould and multiple mould compartments. Each mould is supplied complete with base plate and two reference points per compartment of mould. Mould size: 25 x 25 mm section and 250 mm effective length (Distance between two inner-most of the reference points) The models are available in three kinds of apartments i.e. One, Two, Four with smooth and knurled threaded reference points.

With 45째 Diffuse reflectance head with Tristimulus green filter for whiteness of sample with head for brightness measurement or for opacity measurement

These proving rings are made out of special steel, carefully forged to give maximum strength & machined to give the highest sensitivities commensurate with high stability and to ensure long life and accuracy. All proving rings are integral type viz. the loading (outside) bosses are forged integral with the ring body. This ensures that there is no possibility of abutment shift and consequent loss of accuracy in reading that always exists in rings with bolted abutments. The dial gauge and anvil are mounted on U-brackets clamped to the ring body by Allen set screws. The dial gauge is fitted with a special back cover and threaded bush which does not permit any shift from the original diametric alignment, coaxial with the loading boss centers, that is set at the factory before calibration. For all compression proving rings and tension compression proving rings up to and including 5 kN capacity (a little over 500 kgf) the loading bosses have female threading, 12" B.S.F. (16 t.p.i.) The boss faces are ground and polished and are lane parallel to within 0.02mm.total D.T.I. run-out. Caps are provided for use when loading in compression. Repeatability is as stipulated in IS : 4169-1967. The rings are supplied complete with dial gauge and our own calibration chart, packed in polished wooden boxes.

In the process of compaction, efforts are only directed to reduce voids in the compacted concrete. The Vibrators produce vibrations which when transmitted to plastic concrete make it to flow and affect compaction. The air bubbles are forced out of concrete due to vibrations.The Needle Vibrator, also known as immersion or poker vibrator have a power unit and long flexible tube at the end of which a vibrating head is attached. Wherever compaction is to be done, the vibrating head is inserted in the concrete. GENERAL DESCRIPTION AND SPECIFICATIONS The Laboratory needle vibrator having 350mm long X 25mm dia Needle is used in vibrating concrete test cylinders and beams in the field or laboratory. It is also widely used in making laboratory specimens, in making concrete products, in experimental works, and in small scale construction project. It has 1 meter long flexible shaft and is powered by 1 HP single Phase Electric motor.The Needle vibrator for compaction of mass concrete has 40 or 60mm dia needle with 6 meter long flexible shaft and powered by 3 HP Electric motor for operation on 440 Volts, 3 phase, 50 cycles, A.C. Supply. Optionally, the Vibrator can also be fitted with Petrol/kerosene or Diesel Engine for field use. OPTIONAL ACCESSORIES Spare Needle with shaft

For 150mm dia x 300mm high specimen. Consists of two frames for clamping to by means of five tightening screw with a hardened end tappered end. Two spacer hold the two frames in position. A pivot rod rests on pivot screws. A dial gauge, fixed to a bracket fitted to the top frame is used for taking deformation measurement. Supplied complete with dial gauge 0.002mm x 5mm in a nice wooden carrying case.

The unit consists of two movable frames pivoted at one end. The lateral extensometer is fixed to the specimen with the help of tightening screws. The lateral extension is indicated on a dial gauge of 0.002 mm x 12 mm travel. The extension is magnified 2.5 times and the dial gauge readings are to be divided by 2.5 to get the exact readings. A spacer strip is provided to initially set the dial gauge and can be removed after initial setting. Supplied in a wooden carrying case.

The jolting apparatus consists of a rectangular table rigidly connected by two support arms to a spindle at a horizontal distance of 800 mm from the centre of the table. There is a projecting lug with a plane face on the upper face of the table beneath which is a stop with a rounded upper surface. The table can be raised and allowed to fall freely on the stop by a cam which is connected to a motor and gearbox through a V-belt an pulleys. The cam rotates at a rate of 60 RevMin. A stroke counter fitted with micro-switch is provided which stops the machine after 60 Jolts. Locating pins are provided for mounting the mould compartments on the table. The mould surmounted by the hopper can be clamped rigidly to the table. Supplied complete with mould and hopper. Suitable for operation on 230 Volts, Single Phase, A.C. Supply. A Digital Preset Counter can be supplied at an extra cost.

J-ring test the passing ability of the concrete .The equipment consists of rectangular section of 38 mm X 25 mm open steel ring drilled vertically with holes to accept threaded section of reinforcing bars 12 mm diameter 100 mm in length.The bars and sections can beplaced at different distance apart to simulate the congestion of reinforcement of the ring formed by vertical section is 300 mm and height 100 mm . Equipments : Slump cone without foot pieces Base plate at least 900 mm Trowel Scoop Scale 1 Meter J ring rectangular section 38 mm *25 mm plated vertically to form a ring 300 mm dia meter generally at a spacing of 48±2 mm .

Hand Operated : Hydraulic Jacks are of multipurpose utility i.e. application of loads while engaged in field investigation, determination of load carrying capacity of piles in the field, tensioning of wires in pre-cast structures, loading of members of any structures for deformation characteristics. For applying loads for various test in field or laboratory. Hydraulic Jack hand operated with separate pumping units. These jacks are portable available in various capacities. The pumping unit is connected to the hydraulic jack by means of a flexible connecting pipe 2 meter long. The jack is fitted with lifting handles for easy transportation. The approximate lift of the ram is 90 to 120 mm. The pumping unit is a single plunger type with detachable handle. The unit is fixed on a channeled base which is fitted with lifting handles. A pressure release valve is provided on the pumping unit. The load is indicated on a 15 cm dial hydraulic pressure gauge of appropriate capacity which can be detached from the pump when not in use. The least count of the calibrated dial will be according to the capacity of the gauge (Normally 100 divisions for full capacity). Lift of ram - 150 mm.

This sieve shaker is designed to carry up to 7 sieves of 6 inch or 8 inch diameter. The 12 inch dia.sieves can be used with the help of Adaptor. A 14 HP. motor through a reduction gear immersed in oil drives the shaker. The sieve table dies not rotate but is inclined from the vertical axis and the direction of inclination changes progressively in clockwise direction. If the stop-pin below the table is removed. the shaker can have a rotary motion. In addition to this gyratory motion of the table, there is an upward and downward movement ensuring that each square cm of the sieve is utilized. A pair of rods and a holder is supplied. The holder can be fixed on the top of the upper most sieves, and thus the sieve set is firmly held. Suitable for operation on 230 volts, 50 cycles single phase A.C. Supply.

the consistency and workability of concrete is a very important factor and is strictly connected to the water/cement ratio, to the effect of admixtures and finally to the strength and quality of concrete. Suitable for concrete mixes of high and very high workability. To perform this test, a sample is placed on a metal surface which is then raised and dropped through a known height. general description and specification: as per is: 5512. For cement mortar and lime the flow table consists of a brass table top 250 + 2.5mm dia mounted on a rigid stand. The table top is reinforced with equally disposed ribs and allowed to drop through 12mm by a ground and hardened cam, complete with mould 100mm base dia, 70mm top dia and 50mm high. The cam shaft is rotated at the rate of 100 rpm by an electric motor. Suitable for operation on 230 volts 50 cycles. Single phase, a.c. Supply. Manually operated flow table also available. as per is:199 for concrete: the flow table consists of a brass or mild steel table top of 76.2 cms(30")dia, finely machine from a solid brass casting or mild steel plate. The stand is fabricated out of cast iron/mild steel and is of study construction. The ground and hardened steel cam is designed to drop the table by 12.5mm. Complete with flow mould with handles with one tamping rod 0-60 cms long x 16cm. Electrically operated to raise and drop the table top. Approx. 15 times in 15 seconds. Suitable for operation on 230 volts, 50 cycles, a.c. Supply. Manually operated flow table also available. optional accessories : concrete scoop

Although generally not such an important property of concrete than compressive strength, tensile strength values are often important to know when the concrete used free of reinforcement and may be subjected to some tensile force. The test method essentially involves applying a load at the centre of a beam of concrete supported at its ends. The load required to break the specimen is then recorded. Salient Features: The machine consists of a motorized load frame. The lower platen has two rollers, the distance between which is adjustable. For 150 mm x 150 mm x 700 mm beam, the centre distance between the rollers is 600 mm, while it is 400 mm for beams of size 100 mm x 100 mm x 500 mm. The upper platen has also a pair of rollers whose distance adjustable. It is 200 mm centre to centre, for 150 mm x 150 mm x 700 mm size beam and 133 mm for 100 mm x 100 mm x 500 mm size beam. Total capacity of the machine is 100 KN. 150mm dia pressure gauge of 0-100 KN x 1 KN least count to indicate load is fixed on the load frame. A separate electrically cum hand operated pumping unit housed in a cabinet is supplied. On/Off switch and a slow/fast lever to control rate of loading are fitted on the front panel of the pumping unit. A facility for hand operation is provided. A micro switch and relay fitted inside the pressure gauge protect the unit from over loading. Hand operated version consists of a load frame. A small hand pumping unit is attached to the load frame. Since this is a hand operated light weight machine. It is useful for field laboratory also. Optional Accessories (at extra cost): Spare Oil seal Hydraulic Oil ( tin of 5 ltrs) Beam Mould 10 X 10 X 50 cm Beam Mould 15 X 15 X 60 cm Beam Mould 15 X 15 X 70 cm Beam Mould 15 X 15 X 75 cm Trowel Concrete Scoop