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Large Hydraulic Four Point Bending Machine

Four point bending tests is 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

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Description

Four point bending tests is 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. Device accepts various beam sizes: 380 to 660mm in length and 50 x 50mm to 100 x 100mm cross-section This equipment is capable of testing over a wider frequency range (up to 60 Hz) than can be achieved with pneumatic loading systems. Temperature controlled cabinet range -20 to 30°C

Specification

1. Comply with EN 12697-24 Annex D, EN 12697-26 Annex B and AASHTO T321-03 (TP8); 2. Servo-hydraulic technology; 3. Frequency 0,1-30Hz; 4. Number of deflection transducers (LVDT) positioned on the sample – 3; 5. Beam sizes up to 660mm in length; 6. Beam cross-section up to 100 x 100mm; 7. Temperature controlled cabinet range -20 to 30°C; 8. Sinusoidal controlled strain or controlled stress fatigue test modes; 9. Constant torque motorized specimen clamping to eliminate errors due to localised beam indentation; 10. The possibility to make frequency/temperature sweeps; 11. Force Transducer ± 10 kN; 12. Actuator stroke 10 mm; 13. Double acting fatigue rated hydraulic actuator with integral stroke transducer; 14. Power 3 Phase 415 Volts 50 Hz @ 16A

Services

In process

Funding Source

Other -

Purchase price, EUR (without VAT)

Purchase price above 50 000 EUR (without VAT) -
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