Cement-Concrete-Aggregate Lab Equipment

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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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• 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 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.