Two Point Trapezoidal Bending Beam Machine

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Product code: CRT-2PT-II
Standards: EN 12697-24 Annex A; EN 12697-26 Annex A; NF-P-98-260-2. Add To Quote

Two Point Trapezoidal Bending Beam Machine

DescriptionKey FeaturesSoftwareSpecificationsAccessoriesDatasheet Bending tests are widely used for measuring the stiffness modulus and assessing the fatigue resistance of asphaltic paving materials. The two-point bending test on trapezoidal specimens is, arguably, the most repeatable and reproducible bending test method detailed in the relevant EN12697 standards. In this test the specimen is mounted as a vertical cantilever. […]
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Two Point Trapezoidal Bending Beam Machine

To be confirmed by email: 0.00

DescriptionKey FeaturesSoftwareSpecificationsAccessoriesDatasheet Bending tests are widely used for measuring the stiffness modulus and assessing the fatigue resistance of asphaltic paving materials. The two-point bending test on trapezoidal specimens is, arguably, the most repeatable and reproducible bending test method detailed in the relevant EN12697 standards. In this test the specimen is...

Bending tests are widely used for measuring the stiffness modulus and assessing the fatigue resistance of asphaltic paving materials. The two-point bending test on trapezoidal specimens is, arguably, the most repeatable and reproducible bending test method detailed in the relevant EN12697 standards. In this test the specimen is mounted as a vertical cantilever. The base is fixed and the top is moved sinusoidally with a constant displacement amplitude. The trapezoidal shape ensures that the maximum values of bending stress and strain occur away from the ends of the specimen where there are likely to be stress concentrations. With the Cooper Technology equipment, two trapezoidal specimens are tested simultaneously and stiffness modulus can be determined at a range of frequencies and temperatures. In the fatigue test the specimens are subjected to a constant strain amplitude at a selected frequency and temperature until the stiffness modulus decreases to a user-selected target level (normally 50 percent of its initial value).

  • Rigid test frame housed within temperature cabinet
  • Temperature cabinet with fan assisted air circulation and glazed viewing door
  • Temperature cabinet range -20 to 30°C
  • Machine designed to test two specimens simultaneously
  • Frequency range from 0.1 to 30Hz
  • Precise manual setting of strain amplitude
  • Accurate pre-test displacement transducer adjustment using software feedback
  • Two high-precision ±2.5kN fatigue rated piezoelectric force transducers
  • High-speed control and acquisition system for interfacing to host computer
  • User-friendly software for fatigue and stiffness modulus tests
  • Software for automatically carrying out frequency sweeps
  • Supplied with certification of a UKAS accredited calibration
  • User friendly, intuitive and reliable Windows™ software developed using LabVIEW™
  • Specifically written to meet EN 12697-24 Annex A and EN 12697-26 Annex A
  • One software package performs both fatigue and complex modulus testing
  • The software allows a range of strain amplitudes and frequencies to be tested
  • The operator is guided through setting up the samples and performing the test
  • Real-time graphs show the force and the deformation as well as the relationship between rigidity and number of cycles
  • Stored test data can be analysed and compared with other test data utilising a spreadsheet package
  • Utilities are included for transducer check, diagnostic routines and calibration
Force Transducer2 x 2.5kN Miniature fatigue rated
Specimen Transducer Range± 1 mm
Frequency1 to 30Hz
Electrical supply220-240 Volts 50 Hz @ 16A
Dimensions mm (WxDxH)1050 x 974 x 1950
Working space required mm (WxDxH)2050 x 1974 x 2100
Weight Kg800
PCIncluded
Temperature (integral cabinet)-20 to 30°C

Accessories are not included in the price of the main device and may be purchased separately if required.

CRT-2PT-GLUETrapezoidal beam gluing frame
Trapezoidal beam gluing frame for 56*25*25*250mm and
70*25*25*250mm specimens.
Two specimens can be glued simultaneously.
CRT-2PT-MEASTrapezoidal beam measuring frame
Trapezoidal beam measuring frame for 56*25*25*250mm and
70*25*25*250mm specimens
CRT-2PT-CAPEND25Pair of additional top and bottom clamps
CRT-2PT-CAPEND50Pair of additional top and bottom clamps
CRT-2PT-MODULUSSoftware to determine stiffness modulus to perform EN 13697-26 Annex A
CRT-2PT-SGBStrain gauged beam
CRT-2PT-LVTD2Add-on - Option for second LVDT
CRT-2PT-NCNon contact Capacitative transducer
CRT-2PT-CALKITCalibration kit for force, frequencies and displacement

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