Cement-Concrete-Aggregate Lab Equipment

Approx. Rs 85,000 / PieceGet Latest Price

LOS ANGELES ABRASION TESTING MACHINE

• AS PER IS 2386 (Part IV) ASTM C 131, AASHO T96.

Introduction

• Determination of aggregate abrasion value. Used for testing crushed rock, crushed slag, crushed and uncrushed gravel for resistance to abrasion.

General Description and Specifications

• Consists of a hollow steel cylinder, closed at both ends, having an inside diameter of 700 mm and inside length of 500 mm.
• The cylinder mounted on a sturdy frame on ball bearings.
• The opening will be closed dust tight with a removable bolted cover in place.
• A detachable shelf which extends throughout the drum catches the abrasive charge and does not allow it to fall on the cover.
• The drum is rotated at a speed of 30-33 RPM by an electric motor through a heavy duty reduction gear.
• Fitted with revolution counter and push-button starter. Supplied complete with a tray for collection of the material.
• Abrasive Charge Consists of a set of 12 Nos. cast iron spheres or steel spheres (Hardened steel balls) approximately 48 mm diameter each weigh between 390-445 gm.
• Complete as above.
• Suitable for operation on 440 volts, 3 phase, 50 cycles, A.C. supply.

Additional Information:

• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Nhava Sheva
• Production Capacity: 50
• Delivery Time: 1-2 Weeks

Approx. Rs 14,000 / PieceGet Latest Price

ANALOG CONCRETE TEST HAMMER (REBOUND HAMMER)

Introduction

• The concrete test hammer is an instrument which is easy to use, for quick and approximate measurement of the resistance to pressure of manufactured concrete products.
• The principles on which it works are based on the rebound impact of a hammer on a piston which rests against the surface of the concrete products.
• The Greater the resistance of the concrete, greater is the rebounded impact.
• By reading this rebound impact on a scale and relating it to curves on graphs supplied with the instrument, the resistance to compression in MPa or PSI can be found, with +- 20% of actual.

General Description and Specifications

• Consists of a barrel in which is housed a hammer mass attached to an impact spring which slides on a guide bar.
• A plunger is a attached to the guide bar which is pressed against the surface to be tested.
• As the piston is pressed against the surface to be tested, on reaching the compressive strength, the hammer mass is released and rebounds to a certain extent (according to the strength of the surface) which is indicated by a rider on a calibrated scale.
• A lock button fixed on the body of the hammer locks the rider in place and the rider can be recared to zero position by using the same button.
• The equivalent compressive strength can be computed from the chart supplied.
• Each hammer is calibrated against at standard test hammer and is suitable for a specimen of compressive strengths 100 - 700 kg/cm.
• The instrument, complete with a grinding stone for polishing the test surface, is supplied in a carrying case.

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Introduction: 

• One of the durability tests of concrete is to determine permeability of water through specimen. Permeability apparatus is used for determining the permeability of cement mortar and concrete specimens of 15 cm cubes cast in the laboratory.

General Details: 

• The concrete permeability apparatus comprises of a brass/gunmetal cell of squares cross-section mounted on a stand and a pressure chamber is connected to the cell through copper tubing and T-connector mounted on the stand with sleeve packed valve and rubber hose pipe with end connections.
• The cell assembly consists of one base plate, one metal funnel and one top plate, The pressure chamber is fitted with a pressure regulator which helps in regulating the pressure from 0-15kg/cm sq. gauge is for indicating the pressure in the cell.
• A foot pump and a pressure tube is supplied to develop pressure in the chamber.
• The apparatus is supplied with a measuring cylinder 500 cc to measure percolated quantity of water.
• Pressure can also be applied by a pressure air line or by a compressor

Optional Accessories : Air Compressor

Concrete Permeability Tester For Three Specimens Of

• 100mm Dia X 100mm Height Or
• 150mm Dia X 150mm Height Or 150mm Cube Also Available.

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Introduction:

• Concretes incorporating fly ash or silica fume are less permeable to deleterious elements and thus are more durable than conventional concretes. The Rapid Chloride-ion Permeability Test (RCPT) is designed to assess the resistance of concrete to the penetration of chloride ions, an indicator of its permeability.

General Details:

· Each RCPT cell will be made up of transparent acrylic material of 150 * 150mm* 50mm thick as per ASTMC 1202.

· It will hold the concrete specimen of 100mm dia 50mm thick.

· It will be provided with rubber gasket and washers for achieving leak proof.

· Stainless steel bolts with washers and nuts will be provided to hold the specimen rigidly.

· The power supply will be applied to each cell through banana sockets and the current will be distributed through the brass mesh.

· Each cell will be provided with openings in top for pouring chemicals and the temperature sensors. The openings can be closed with lids.

· The volume of chemicals within the chamber shall be 250ml.

It includes the following items:

• Constant voltage power supply with 3 channels.
• Plexi-glass chambers - 3 pairs.
• 250 mm vacuum Desiccator.
• Vacuum pump  
• Moisture trap  
• Moulds for cylindrical specimens - 3 nos.  
• Consumables - good for 1 doz. Tests
• Sealant Silicon sealer + brush

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Details: 

• This new and advanced model of digital concrete hammer microprocessor operated consists of an electronic transducer which converts the rebound of the hammer into an electric signal and displays it in the selected stress unit.
• The digital hammer, which is battery ope­rated, can be easily connected to a PC or serial printer via the RS 232 port.
• A large permanent memory can store up to 5000 results.
• Supplied complete with battery charger and serial cable.

Main features:

• High resolution and accuracy.
• Possibility to store, display and download data to PC.
• Automatic conversion of rebound index to equivalent compression strength in N/mm2, kg/cm2 or p.s.i.
• Several correlation curves between rebound index and compressive strength with possibility of user defined curves
• Calculation of mean and standard deviation and elimination of non significant values.
• Numerous parameters allow optimization of accuracy.
• Automatic statistical processing of readings.
• Rapid and simple calibration procedure.
• Powered by internal rechargeable battery.
• Storage up to 5000 tests.
• Complete with traceable certificate of calibration.

Specific Details:

• Power : integrated rechargeable battery
• Autonomy (non continuous use): >5 hours
• Output : RS 232 serial port
• Automatic shut down

The hammer is supplied complete with: 

• Battery charger with cable, serial cable for PC, abrasive stone, instruction manual and rigid carrying case.

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Vibrating machine(Also called MOULD VIBRATOR OR MORTAR CUBE VIBRATOR)

Introduction:

• Concrete moulds are easily cast by using a tamping bar or a vibrating table.
• However air trapped in cement mortar paste cannot be thus removed while casting cement mortar moulds.
• Easy method is to impart greater vibration of lesser amplitude to the mould while casting.
• This is achieved in a Vibrating Machine. Vibrating Machine is used for the preparation of mortar cubes for the determination of compression strength of ordinary and rapid hardening Portland cement, low heat Portland cement, Portland bleast furnace cement and high alumina cements.

General Details: 

• The machine consists of a vibrating frame assembly and an electric motor mounted on a sturdy base.
• The complete frame assembly consists of a vice to hold a 7.06cm cube mould and two studs threaded at top and a hopper to feed the sample in the mould.
• This assembly is supported on four springs and has an in built rotating shaft which rotates eccentrically and thus imparts vibrations to the entire frame.
• A balance weight is an integral bottom part of the frame.
• The centre of gravity of the assembly is brought to the centre of the eccentric shaft or within a distance of 25mm below it.
• The electric motor drives the shaft of the frame and thus imparts required vibrations to the mould.
• The frequency of vibration is 12000± 400 vibration per minute.
• Supplied complete with on 7.06cm cube mould with loose base plate, a time switch 0-5mins x1min.

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SPECIFIC GRAVITY AND WATER ABSORPTION OF AGGREGATES

• AS PER IS: 2386 (Part - III).

Introduction:

• This set is used for specific gravity, apparent specific gravity and water absorption of aggregates.

General Description and Specifications:

• Digital Electronic balance, capacity 5 kg, accuracy 0.5 gm, provision is made in this balance to suspend density basket under material pan. This balance is mounted on an angle iron frame stand. 1 No.
• Density Basket. 1 No.
• Air tight container of capacity similar to that of density basket 1 No.
• G.I. Tray of area not less than 650cm sq. 2 Nos
• Absorbent clothes 75cm x 45cm.

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LABORATORY CONCRETE MIXER (MOTORISED)

Introduction:

• A concrete Mixer is a laboratory type electrically operated device designed to remove the burden- some work of hand mixing.
• Uniform thoroughly mixed batches can be produced in field or laboratory.
• It is used that homogeneously combines cement, aggregate such as sand or gravel & warm to form concrete.
• The counter balanced drum is easy to tilt 1.5 to 2cu.ft. mix.
• The total drum volume is however 3cu.ft.

General Description and Specification:

• Mounted on a sturdy rubber tired stand and the drum is mounted for end discharge and equipped with end towing pole.
• The vessel is rotated at 20-22 RPM with the help of motor & pulley arrangement.
• Equipped with ½HP electric motor.
• The vessel can be tilted to any angle by hand wheel & counter weight.
• This facilitates mixing & discharge.
• Blades are provided inside the vessel to mix the material uniformly.
• Suitable for operation on 220/230 volts A.C. single phase

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• AS PER: EN 12504-4 | ASTM C597

Introduction:

• The UPV tester is used for quality control and inspection of concrete.
• It measures the transit time of ultrasonic pulses through concrete for inspection of new and old structures, slabs, columns, walls, fire damaged areas, precast and prestressed beams, cylinders and other concrete forms.
• Combined with an oscilloscope can identify honey combs, voids, cracks and other non homogeneous conditions in concrete.

General description:

hand held light instrument, battery operated, microprocessor incorporated, supplied complete with two 54 KHz transducers (transmitter & receiver), calibration rod, 250mm of coupling agent, instruction manual & carrying case. The meter can also be used with low & high frequency transducers.

MAIN FEATURES:

• For the non destructive evaluation of concrete homogeneity and determination of Dynamic Elastic Modulus
• Ergonomic and compact
• Lightweight and portable
• Battery operated
• Large size digital display 128x64 pixel
• Digital calibration
• High price/quality ratio

Technical Specifications

• Microprocessor incorporated
• Battery operated by internal rechargeable battery pack (2400 MAh) and External charger
• 14 working hours using I Hz pulse rate
• RS 232 output for PC or printer
• Connectable to oscilloscope
• Transit time measurement from 0.1 to 1999.9 microseconds
• Pulse rate 1, 2, 5, 10 per second, selectable
• Resolution 0.1 microseconds
• Transmitter output 1200 V
• Frequency range 24 to 150 kHz
• Receiver imput impedance 1 MOhm
• Weight of the tester 0.5 kg, complete set 2.3 kg

Approx. Rs 25,000 / PieceGet Latest Price

VEE BEE CONSISTOMETER

• AS PER IS 1199 & BS EN 12350.

Introduction

• The instrument is used for workability as well as the consistency of fresh concrete.
• A slump cone and a graduated rod supplied with the instrument helps the operator to find out slump values and Vibration Table with container and acrylic disc is used to find out workability of concrete expressed in Vee Bee degrees, which is defined as the time in seconds to complete required vibrating at which the fresh concrete flows out sufficiently to come in contract of the entire face of acrylic disc.

General Description and Specifications

The equipment 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 from the 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.

Additional Information:

• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Nhava Sheva
• Production Capacity: 20
• Delivery Time: 1-2 Weeks

Approx. Rs 45,000 / PieceGet Latest Price

TILE FLEXURE TESTING MACHINE:

• AS PER IS: 654, 1257 & 1706.

Introduction:

• It is essential to determine the flexural strength of manmade cement concrete Tiles for effective quality control.
• Standard size tiles, wet or dry is loaded in the mid-span using rollers of specified dimensions and their average breaking loads found out.
• The loading is by using lever arm and lead shots.

General Description and Specifications:

• Unit for finding the flexural strength of clay roofing tiles and Cement Concrete flooring tiles.
• The flexural load is applied to the tiles using lead shots.
• The machine consists of a stand on which two 40 mm dia bearing rollers or 12 mm dia rollers are placed at a center distance of 150 mm, 200 mm, 250 mm, or 270 mm as the case may be.
• The third upper roller applies a centrally flexural load by means of lever arrangement.
• Lead shot contained in an upper vessel start flowing into a lower container at a rate of 45 to 55 kg per minute or 200 kg per minute thereby, starting loading the specimen.
• The arrangement is made such that loading automatically stops when specimen breaks. Supplied without lead shots.

Approx. Rs 30,000 / PieceGet Latest Price

SIEVE SHAKER MACHINE (GYRATORY TYPE)

• As per IS 4031,516,10082,10086

General Description and Specifications

• Carries up to 7 sieves of 150mm or 200mm diameter.
• The shaker is driven by a 1/4 HP motor through a reduction gear immersed in oil.
• 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. Pair of rods and a holder are 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 form 230 volts, 50 cycles phase, A.C. supply.

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• Abrasion resistance
• Unique designs
• Excellent finish
• Low maintenance
• Easy to use
• Durable

AGGREGATE IMPACT TESTING MACHINE:

• AS PER IS: 2386 (Part-IV) 9377.

Introduction:

• For determining the aggregate impact value of coarse aggregate.

General Description and Specifications:

• The instrument consists of a circular base with two vertical guides.
• Consists of base weight between 20-30 kg with a lower surface of not less than 30 cms and support columns to from a rigid frame work around the quick release trigger mechanism to ensure an effective free fall of the hammer during test.
• The free fall can be adjusted through 380 ± 5.0 mm. The hammer is provided with a locking arrangement.
• A metal hammer of weight 13.75 ±0.25 kg, the lower end of in cylindrical shape, 100 mm in diameter and 5 cm long with a 2 mm chamfer at the lower edge and case hardened.
• Complete with a cylindrical cup, 102 mm dia X 50 mm depth, one cylindrical metal measure 75 mm dia X 50 mm deep and a tamping rod of circular cross section 10 mm in diameter and 230 mm long, rounded at one end. Supplied with automatic blow counter.

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Laboratory Cement Autoclave With S.S. Chamber (21 Kg/Cm.Sq. Pressure ) 

• AS PER IS: 4031-1968, IS: 1624-1960

Introduction: 

• The Autoclave is suitable for conducting accelerated soundness tests on cements or the autoclave expansion test requiring constant steam pressure with the correspondent constant pressure.

General Description and Specification:

It consists of:

• A stainless steel cylinder with a welded heat insulated voer, mounted on a sturdy supporting frame, enclosed in a heat insulated metal housing, attractively finished.
• The attached control unit encloses a sensitive pressure regulator and pressure gauge, power switches and pilot lights for controlling the electric heating units.
• Inside Chamber Dimensions - 10.5cm diameter x 40.5cm height suitable for operation on 230 V, 50Hz, Single Phase, A.C. supply.
• Supplied complete with Test bar holder, special rack to hold specimens above water level in the autoclave and in a vertical position to expose them in the same manner.

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Introduction: 

• Flexural tests of concrete beam have their own importance in concrete Road Constructions as well as Buildings constructions. Normally concrete beams of sizes 10 cm x 10 cm x 50 cm or 15 cm x 15 cm x 70 cm are tested for flexural strength.

General Details:

• The machine consists of a hand operated load frame.
• The lower platen has two rollers, the distance between which is adjustable.
• For 150mm x 150mm x 700mm beam, the centre to centre distance between the rollers is 600 mm, while it is 400mm for beams of size 100mm x 100mm x 500mm.
• The upper platen has also a pair of rollers whose distance is adjustable.
• It is 200 mm center to center for 150mm x 150mm x 700mm size beam and 133mm for 100mm x 100mm x 500 mm size beam.
• A pressure gauge to indicate load is fixed on the load frame.
• A small pumping unit is attached to the load frame.
• Total capacity of the machine is 100 KN and a 150 mm dia pressure gauge - 100 KN x 1 KN is fitted on the machine.

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VIBRATINGTABLE

Introduction

• The Vibrating Table is used for compacting concrete cubes and cylinders.

General Description and Specifications

• It is designed to carry a load of 140 kg.
• The apparatus consists of a motor fitted with a variable pitch pulley housed in a cabinet.
• The vibrations are imparted by means of off-balance masses rotating on a shaft of a vibrator clamped to the underside of the table top.
• The table top is 50cm x 50cm. and has stops along its edges to prevent moulds from walking off the table during vibration.
• A cross arm adjustable on a vertical rod at the center of the table is provided to hold the moulds while operating the table.
• The variable pitch pulley arrangement permits the frequency to be varied stepless between a maximum of 3600 vibrations down to 2600 vibrations per minute.
• A speed regulation handle is provided for increasing or decreasing the frequency.
• A switch is provided for starting the motor.
• Suitable for operation on 220-240 volts, 1 phase, 50 cycles, A.C. supply.

Note available Sizes of Vibrating Tables

• size 50cm x 50cm
• size 75cm x 75cm
• Size 100cm x 100cm.

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COMPACTION FACTOR APPARATUS

• AS PER IS 1199, 5515 & BS 1881-103.

Introduction

• The apparatus is used for determining the workability of fresh concrete, provided the maximum size of the aggregate does not exceed 38mm.
• The test is particularly useful for concrete mixes of very low workability where true slump values are not reliable.

General Description and Specifications

It consists of

• two rigid conical hoppers and a cylinder mounted on a rigid metal frame.
• The lower openings of the hoppers are fitted with hinged trap- doors having quick release catches.
• A circular metal plate is provided to cover the top of the cylinder.
• Supplied complete with one plasterer's trowel and one tamping rod, 16mm dia x 600mm long, one end rounded.

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FLEXURE TESTING MACHINE (ELECTRICALLY OPERATED)

• AS PER IS: 516 BS 1881, ASTM C78.

Introduction:

• Flexural tests of concrete beam have their own importance in concrete Road Constructions as well as Buildings constructions.
• Normally concrete beams of sizes 10 cm x 10 cm x 50 cm or 15 cm x 15 cm x 70 cm are tested for flexural strength.

General Description and Specifications:

• The machine consists of a Electrically operated Motorised load frame.
• The lower platen has two rollers, the distance between which is adjustable.
• For 150mm x 150mm x 700mm beam, the center to center distance between the rollers is 600 mm, while it is 400mm for beams of size 100mm x 100mm x 500mm.
• The upper platen has also a pair of rollers whose distance is adjustable.
• It is 200 mm center to center for 150mm x 150mm x 700mm size beam and 133mm for 100mm x 100mm x 500 mm size beam.
• A pressure gauge to indicate load is fixed on the load frame.
• A small pumping unit is attached to the load frame.
• Total capacity of the machine is 100 KN and a 150 mm dia pressure gauge - 100 KN x 1 KN is fitted on the machine.
• A separate electrically cum hand operated pumping unit housed in a cabinet is supplied.
• The pressure gauge 0-100 KN x 1 KN, On/off switch and a slow/fast level 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 protects the unit from over loading.

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PAN MIXER (MOTORIZED): LABORATORY TYPE:

Introduction:

• The Concrete Mixer has been designed for mixing small quantities of concrete used in preparation of concrete cubes, for testing in laboratories. The purpose of the mixer is to smear mechanically the aggregate surface with cement paste uniformly & produce a mix of uniform consistency. This in turn gives consistent quality of cube specimens when casted in the moulds. They are of easy and practical utilization; suitable for laboratory y and field purposes. The field models are Hand Operated.

General Description and Specification:

• This muliflow mixer absorbs less air during mixing, requires shorter mixing time and grants a perfect homogeneity in mixtures having a low water and cement ratio.
• The pan is easily removable by means of a trolley.
• The blades are hardened against wear.
• The Concrete Mixer developed is transportable on wheels.
• The design of mixing paddles ensure uniform & efficient mixing of cement & aggregate both in dry & wet conditions.
• This machine is suitable for aggregate size up to 20mm.
• The equipment can also be put to use for mixing of any other material in dry / wet conditions.
• The arrangement helps the operators to access the pan contents conveniently & emptying the mixture after completion of the operation.
• The drum is driven off the ribbed base.
• The lid with mixing paddles clears off the top of the drum to provide maximum access to the operator.
• Mixing Capacity: 65 liters.
• Pan Size: 24” dia x 14” depth ( Volume 65 liters Approx)
• Motor : 2 HP, 3-phase , 440 V A.C.

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TILE ABRASION TESTING MACHINE:

• AS PER IS: 1237 & 1706.

Introduction:

• Natural building stones used in stops, floorings, pavements etc are subject to heavy wear and tear as well as friction.
• Their durability under such circumstances can duly be ensured only by stones which have the necessary hardness and resistance to abrasion.
• Similarly flooring tiles are chosen for their elegant appearance and also the case with which they can be laid.
• A tiled floor apart from looking pleasant easily adopts itself to slight settlement of the foundation backfill.
• If at all there is a crack due to this it will be imperceptible and localized in joints only. Added to this they have good strength, durability, resistance to wear and can easily be replaced.
• The Tile Abrasion Testing Machine is for testing the resistance to wear and abrasion of natural building stones, and cement concrete flooring tiles.
• The instrument is as per ISL 1706 and IS 1237.

General Description and Specifications:

• This is used for determination of resistance to wear for cement concrete flooring tiles.
• Tiles specimen of size 7.06 cm x 7.06 cm is pressed tace-wise under specific load on a grinding path and abrasive powder is evenly spread on the rotating grinding path and after specific number of revolutions of the grinding disc the second parallel side of the tile is subjected to wear for similar number of rotations.
• The wear of the tile is measured on a thickness gauge specifically made for the purpose.
• The machine consists of a disc rotating at a speed of 30 rpm in a circular tray.
• A bracket is provided to hold the specimen.
• A counter balance lever loads the specimen.
• Load applied is 30 kgf.
• A funnel is fitted to evenly spread abrasive powder on the grinding path.
• A preset counter automatically stops the machine after 22 revolutions.
• This counter is re-adjustable.
• The machine works on 440 volts AC, three phase electrical supply. On request machine to operate on 230 Volts AC supply can also be supplied.

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MORTAR MIXER:

• Capacity: 6 Liters,
• AS PER IS: 4031, 1727, BS 3892.

Introduction: It is used for mixing cement pastes, mortars and pozzolans.

General Description and Specification:

• The mixer consists of an epicyclical type stainless steel paddle imparting both planetary and revolving motion.
• Mixer has two speeds.
• Mixer blade has low speed of 140 + 5 rpm and medium speed of 285 + 10 rpm, while it also has a planetary movement of 62 + 5 rpm in low range and planetary movement of 125 + 10 rpm in medium range.
• Stainless steel bowl fitted with handle, fitted with lid made of non-absorbing material and not attacked by cement, masonry cement, cement pozzolans mixture or lime pozzolans mixture.
• The scraper consists of semi rigid rubber blade attached to a handle about 150 mm long.
• The blade about 75 mm long, 50 mm wide and tapered to a thin edge.
• Complete with stainless steel bowl of about six liters capacity.