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SCB

Automatic SCB System

The Automatic SCB system, used in conjunction with the S205N Unitronic 50 kN load frame, is an accurate device for conducting mechanical testing of asphalt mixtures. It can perform various versions of the Semi-Circular Bend (SCB) test for evaluating the fracture characteristics of asphalt mixtures at intermediate service temperature conditions. Pavement engineers can use these tests to determine the material characteristics needed for pavement design, quality control and/or quality assurance purposes.
Our Automatic SCB system is able to operate in load-control and displacement-control modes and can accommodate a wide range of test accessories in order to run several asphalt performance tests, including IDT/TSR, MARSHALL and DIRECT SHEAR.
In particular, Matest offers accessories for conducting SCB tests according to EN 12697-44, AASHTO TP124 (recommended by University of Illinois) and ASTM D8044 (recommended by Louisiana State University). The load and displacement parameters measured by the Automatic SCB system can be used to predict cracking performance of asphalt mixtures based on the Illinois Flexibility Index (I-FIT) and Critical Strain Energy Release Rate (Jc).

Application: Asphalt

Property: Laboratory Analysis

  • Precision load cell and LVDT for load and specimen vertical displacement measurement.
  • Loading sequence fully automated with microprocessor control of the loading ram.
  • Load and displacement measured with 8 analog A/D inputs.
  • Touch screen display and intuitive controls allow for rapidly setting new test parameters and monitoring test data in real time.
  • The data acquisition system can connect to multiple transducers simultaneously.
  • The frame maintains the specimen alignment during the test.
  • The durable electromechanical loading system needs minimal maintenance.
  • Optional high quality Environmental Chamber performing tests between -25 °C and + 60 °C.