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Flexure Testing Machine – Pressure Gauge 100kN- Manual VSLIC-C251

short info

The Vertex Flexure Testing Machine – Pressure Gauge 100kN- Manual have been manufacturing to meet the need for reliable and consistent testing of flexural test on standard concrete beams, transverse test on Krebs and flagstones, indirect tensile tests on concrete and interlocking pavers.

Standard

IS:516, BS:1881 and ASTM C78

Model

VSLIC-C251

Origin

India

Make/ OEM

VERTEX

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  • Description

  • SPECIFICATIONS

  • FEATURES

  • VIDEO
  •  New
    WORKING PRINCIPAL

OVERVIEW

The Flexure Strength Testing Machine are designed to test flexural strength of concrete beams. The design provides maximum rigidity throughout their working range. The load is applied by the downward movement of the piston. A spacer is provided for testing different size of beams. The load is indicated on a calibrated bourdon tube type load gauge of range: 0 -100kNx0.5kN the load gauge is calibrated against National Physical Laboratory I National Council for Cement and Building Materials certified proving ring.

  • It consists of a two channel load frame with lock nut.
  • The lower platen has two rollers, the distance between which is adjustable.
  • For 150 mm x 150 mm x 700 mm beam, the center 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 is adjustable.
  • It is 200 mm center to center, 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.
  • A 200mm dia pressure gauge of 0-100 kn x 0.5 kn least count to indicate load is fixed on the load frame.
  • A hand operated pumping unit attached to the load frame is supplied.
  • Rate of loading is maintained manually while pumping the hydraulic pump with the handle.
  • The versatile load frame is designed for minimum deflection at maximum load resulting in very high accuracy.
  • The load frame on 2 pillar lock nut type fabrication carrying the ram fitted to the lower base.
  • It has a single acting down stroking ram with over travel switch protection to shut the machine down should maximum ram travel be reached.
  • The return of the ram is done by dead weight to get maximum accuracy on the load measurement.
  • All flexural frames have been designed to accept all the accessories for flexural and transverse tests


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SPECIFICATIONS

Technical Specifications:

Ram Diameter mm 82
Ram Travel mm 50
Pressure Gauge Diameter mm 200
Pressure Gauge kN 100
Least Count kN 0.5
Maximum Pressure Kg./cm 200
Platen Diameter mm Nil
Horizontal Clearance mm 210
Vertical Day Light mm 160 (adj)
Height of Load Frame mm 850
Weight of Load Frame Kg. 150
Lead Screw Yes
Specimen Size (Can Also Be Tested)
Cube mm 50, 70.6
Cylindrical mm 50 x 100
Flexural Test mm 100 x 100 x 500
150 x 150 x 700

FEATURES

The Flexure Strength Testing Machine are designed to test flexural strength of concrete beams. The design provides maximum rigidity throughout their working range. The load is applied by the downward movement of the piston. A spacer is provided for testing different size of beams. The load is indicated on a calibrated bourdon tube type load gauge of range: 0 -100kNx0.5kN the load gauge is calibrated against National Physical Laboratory I National Council for Cement and Building Materials certified proving ring.

  • It consists of a two channel load frame with lock nut.
  • The lower platen has two rollers, the distance between which is adjustable.
  • For 150 mm x 150 mm x 700 mm beam, the center 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 is adjustable.
  • It is 200 mm center to center, 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.
  • A 200mm dia pressure gauge of 0-100 kn x 0.5 kn least count to indicate load is fixed on the load frame.
  • A hand operated pumping unit attached to the load frame is supplied.
  • Rate of loading is maintained manually while pumping the hydraulic pump with the handle.
  • The versatile load frame is designed for minimum deflection at maximum load resulting in very high accuracy.
  • The load frame on 2 pillar lock nut type fabrication carrying the ram fitted to the lower base.
  • It has a single acting down stroking ram with over travel switch protection to shut the machine down should maximum ram travel be reached.
  • The return of the ram is done by dead weight to get maximum accuracy on the load measurement.
  • All flexural frames have been designed to accept all the accessories for flexural and transverse tests

PRODUCT VIDEO

WORKING PRINCIPALNew

FLEXURAL STRENGTH TEST OF CONCRETE (IS:516-1959)

IS Code for Flexural Strength Test of Concrete :-

  • IS: 516- 1959

APPARATUS REQUIRED FOR THE TEST:–

  • Compressive testing machines
  • Bean mould (10×10×50) cm³ or (15×15×70) cm³

flexure-testing-machine-500x500.jpg

PROCEDURE OF THE TEST:-

  1. At first, store the test specimens in water at a temperature of 24°C to 30°C for 48 hours before testing.
  2. Test the specimens immediately on removal from the water while they are still in a wet condition.
  3. Note down the dimension of each specimens before testing.
  4. Wipe cleanly the bearing surfaces of the supporting and loading rollers. Also remove any loose sand or other material from the surface of the specimen where they are to contact with the rollers.
  5. Place the specimens in the testing machine in such a manner that the load shall be applied to the uppermost surface as cast in the mould, along two lines spaced 20.0 cm or 13.3 cm apart.
  6. Align carefully the axis of the specimen with axis of the loading device. No packing should be used between the bearing surface of the specimen and the rollers.
  7. Apply the load with thought shock and increase it continuously at a rate such that the extreme fiber stress increases at approximately 7 kg /cm²/ min.
  8. Approximately 7 kg /cm² /min that is at a rate of loading of 400 kg/min for the 15.0 cm specimen and at a rate of 180 kg /min for the 10 cm specimen load shall be increased during the test shall be recorded.

CALCULATION:- 

Where,

P = Maximum load in kg applied to the specimen,

L = Length (in cm) of span on which the specimen was supported,

b = Measured width (in cm) of the specimen,

d = Measured depth (in cm) of the specimen at the point of failure.

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