Standards: EN 12697-44, AASHTO TP124, ASTM D8044
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.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).
Main Features
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.
Maximum compression capacity: 50kN
Maximum tensile capacity: 25kN (accessory S205-05N)
Adjustable testing speed from 0.01 to 51 mm/minute
Adjustable pace rate from 1 to 15000N/sec.
Max. ram travel: 100 mm
Daylight between columns: 380 mmMax. vertical daylight: 850 mm
Unitronic 50 kN is supplied without accessories and software to perform the specific tests that must be ordered separetely (see accessories at next pages)
EN 12697-44
B250-01 Basic indirect tensile (idt) jig, for 100-150 mm diameter
B254-01 Scb jig (requires basic idt jig)
B254-51 Pair of scb wear plates
S337-34 Load cell 50 kn capacity
B045-13 Loading piston
S336-15 Transducer type "B" travel: 10 mm
B045-14 Coupling hardware
S335-15 Universal coupling pliers for transd./dial
B043-05N Software for auto-scb test
AASHTO TP124, ASTM D8044
B208 SCB frame
B254-02 Springs
B254-10 Roller support
S337-31(*) Load cell 2,5 kn capacity
B045-13 Loading piston
S336-15 Transducer type "b" travel: 10 mm
B045-14 Coupling hardware
S335-15 Universal coupling pliers for transd./dial
B043-05N Software for auto-scb test
Power supply: 230V 1F 50-60Hz 1500W
Dimensions: 500x450x1450 mm
Weight: 130 kg approx