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S205N AUTOMATIC SCB SYSTEM

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THE FAST AND SIMPLE WAY TO PERFORM ASPHALT FRACTURE TESTING
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.
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).

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.

TECHNICAL SPECIFICATIONS
See the S205N unit technical specifications, at page 126, 500.

S205N UNITRONIC 50KN CONFIGURATIONS:

EN 12697-44
Tensile strength and fracture toughness-crack propagation.
NEEDED ACCESSORIES
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
Determining the fracture potential of asphalt mixtures using semicircular
bend geometry (scb) at intermediate temperature.
ASTM D8044
Evaluation of asphalt mixture cracking resistance using the semi-circular
bend test (SCB) at intermediate temperature.
NEEDED ACCESSORIES
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
OPTIONAL ACCESSORIES
B254-12 Positioning device
(*) As alternative to item S337-31
S337-32 Load cell 10 kN capacity
S337-33 Load cell 25 kN capacity
S337-34 Load cell 50 kN capacity
S337-35 Load cell 5 kN capacity

 

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