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Stand Alone Four Point Bending Beam Machine

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Product code: CRT-SA4PT-BB
Standards: EN 12697-24 Annex D; EN 12697-26 Annex B; AASHTO T321-03 (TP8). Add To Quote

Stand Alone Four Point Bending Beam Machine

DescriptionKey FeaturesSoftwareSpecificationsAccessoriesDatasheet Bending tests are widely used for measuring the stiffness modulus and assessing the fatigue resistance of asphaltic paving materials. Four point bending tests are included in CEN, AASHTO and Chinese test specifications. The specimen is a prismatic beam which is subjected to sinusoidal loading in either the controlled strain or controlled stress modes.The […]
Quote: Stand Alone Four Point Bending Beam Machine 1

Stand Alone Four Point 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. Four point bending tests are included in CEN, AASHTO and Chinese test specifications. The specimen is a prismatic beam which is subjected to sinusoidal loading in either the controlled strain or controlled stress modes.The CRT-SA4PT-BB uses advanced servo pneumatic technology and a high-speed digital data acquisition and control system together with user-friendly software. During testing both graphical and tabular data are displayed on screen and test data is stored to disc in Microsoft Excel™ compatible format. The clamps are at 118.5mm centres (the distance between the outer clamps is 335.6mm (14 inches) according to AASHTO specifications but the height and width of the beam can be varied).Tests on beams containing aggregates greater than 20mm are not strictly in accordance with annex D of EN 12697-24 which states that this non-compliance should be explicitly mentioned in the test report. Frequency range 0.1 to 30Hz¹Low cost pneumatic stand alone four point bending machineUtilises a low-friction actuator and high performance ceramic spool servo-valveOn-specimen measurement system removes errors due to frame flexureAccepts AASHTO beam sizesSinusoidal controlled strain or controlled stress fatigue test modesConstant torque motorized specimen clamping to eliminate errors due to localised beam indentationSelf-contained loading systemUser friendly software for determination of fatigue resistance and stiffness modulusSupplied with certification of a UKAS accredited calibration ¹ At higher strains or on stiff mixtures, higher frequencies are not always achievable. For regular testing with such conditions the CRT-LH4PT-BB should be considered. User friendly, intuitive and reliable Windows™ software developed using LabVIEW™Specifically written to meet EN 12697-24 Annex D and EN 12697-26 Annex BThe user interface can be translated into the user’s preferred language – please enquireStored test data can be analysed and compared with other test data utilising a spreadsheet packageUtilities are included for curve fitting of acquired data; testing of system’s inputs and outputs; phase correction and a transducer database for storing calibration factors Force Transducer±5kNSpecimen Transducer Range± 1 mmActuator Stroke mm10Frequency0.1 to 30 HzElectrical supply220-240 Volts 50 Hz @ 13A (others available)Compressed Air7-10 bar @ 600 L/minDimensions mm (WxDxH) Test Frame440 x 190 x 570Dimensions mm (WxDxH) Data Acquisition Box360 x 280 x 140Working space required mm (WxDxH)826 x 1650 x 2100 when fitted in cabinet CRT-TCCWeight TEst Frame45Weight Data Acquisition Box6PCIncluded Accessories are not included in the price of the main device...

Bending tests are widely used for measuring the stiffness modulus and assessing the fatigue resistance of asphaltic paving materials. Four point bending tests are included in CEN, AASHTO and Chinese test specifications. The specimen is a prismatic beam which is subjected to sinusoidal loading in either the controlled strain or controlled stress modes.
The CRT-SA4PT-BB uses advanced servo pneumatic technology and a high-speed digital data acquisition and control system together with user-friendly software. During testing both graphical and tabular data are displayed on screen and test data is stored to disc in Microsoft Excel™ compatible format. The clamps are at 118.5mm centres (the distance between the outer clamps is 335.6mm (14 inches) according to AASHTO specifications but the height and width of the beam can be varied).

Tests on beams containing aggregates greater than 20mm are not strictly in accordance with annex D of EN 12697-24 which states that this non-compliance should be explicitly mentioned in the test report.

  • Frequency range 0.1 to 30Hz¹
  • Low cost pneumatic stand alone four point bending machine
  • Utilises a low-friction actuator and high performance ceramic spool servo-valve
  • On-specimen measurement system removes errors due to frame flexure
  • Accepts AASHTO beam sizes
  • Sinusoidal controlled strain or controlled stress fatigue test modes
  • Constant torque motorized specimen clamping to eliminate errors due to localised beam indentation
  • Self-contained loading system
  • User friendly software for determination of fatigue resistance and stiffness modulus
  • Supplied with certification of a UKAS accredited calibration

 

¹ At higher strains or on stiff mixtures, higher frequencies are not always achievable. For regular testing with such conditions the CRT-LH4PT-BB should be considered.

  • User friendly, intuitive and reliable Windows™ software developed using LabVIEW™
  • Specifically written to meet EN 12697-24 Annex D and EN 12697-26 Annex B
  • The user interface can be translated into the user’s preferred language – please enquire
  • Stored test data can be analysed and compared with other test data utilising a spreadsheet package
  • Utilities are included for curve fitting of acquired data; testing of system’s inputs and outputs; phase correction and a transducer database for storing calibration factors
Force Transducer±5kN
Specimen Transducer Range± 1 mm
Actuator Stroke mm10
Frequency0.1 to 30 Hz
Electrical supply220-240 Volts 50 Hz @ 13A (others available)
Compressed Air7-10 bar @ 600 L/min
Dimensions mm (WxDxH) Test Frame440 x 190 x 570
Dimensions mm (WxDxH) Data Acquisition Box360 x 280 x 140
Working space required mm (WxDxH)826 x 1650 x 2100 when fitted in cabinet CRT-TCC
Weight TEst Frame45
Weight Data Acquisition Box6
PCIncluded

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

CRT-TCCTemperature controlled cabinet for CRT-UTM-NU and CRT-SA4PT-BB
The temperature can be controlled to 0.2ºC over the range -25ºC to
+ 60ºC using a P.I.D. digital temperature controller, the CAL3200
CRT-BEAMDummy PVC beam 50x50x380mm
CRT-COMP-1210Large Compressor (up to 10bar and 1200l/min) for supply of air to two
pieces of large flow equipment such as Roller Compactors and Four
Point Bending rigs
CRT-F12T-AIRDRYERAir dryer with 43cfm flow rate and 3C dew point. 230/1/50

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