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B215 OVERLAY TESTER

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The Pavetest Overlay Tester is a servo-pneumatic controlled testing machine utilizing digital control of a high performance servo valve to provide
accurate loading wave shapes up to 60Hz, specifically designed to determine the susceptibility of asphalt mixtures to cracking according to
Texas DOT test procedure Tex-248-F and proposed ASTM Standard WK 26816.
The machine applies cyclic loading to a specimen that is cut from a 150 mm diameter sample into the shape of a rounded end beam. The
system comprises a load frame, with one fixed and one moving plate, temperature control system, Control and Data Acquisition System (CDAS)
and optional silent air compressor. The specimen is glued to two plates and this assembly is placed in the machine for testing. This is intended
to simulate the action of movement under an asphalt overlay to assess how failure might occur in the field due to factors such as thermal
expansion / contraction and reflective cracking.
The Pavetest Overlay Tester is underpinned by Pavetest’s leading edge CDAS digital controller, TestLab software and all the necessary accessories,
hardware and software in perfect unison.

MAIN FEATURES
Compact, fully self contained, precision
engineered unit.
Thermoelectric (TE) Heating/Cooling – More reliable
and envronmentally friendly than mechanical
refrigeration & heating elements.
Optional silent, air compressor including membrane
dryer.
Built in verification (Dial gauge).
Integral stand with wheels.

TECHNICAL SPECIFICATIONS
Load Capacity: Up to 16 kN (Static)
Actuator stroke: 10 mm
Temperature range: 10 to 60 °C
Noise Level: Less than 70 db at 2 m
Power supply: 110/230V 50-60Hz 1ph 750W (B215)
Dimensions: 980 (h) x 475 (d) x 1085 (w) mm
Weight: 150 kg approx.

TECHNICAL FEATURES
Temperature controller. The overlay tester is fitted with a temperature controller, which controls the heating/cooling provided by the thermo-
electric unit fitted to the machine.
The specimen preparation jig allows allows users to properly locate and glue the specimen on plates. It can accomodate up to three
sets of platens. It includes 2 mm teflon strip, which helps aligning the specimen plates and eliminate the need to saw the glue afterwards,
and a dead weight.
The Overlay Tester main unit comes fully assembled. It can be placed on the folding stand supplied, complete with wheels.

NEEDED ACCESSORIES
B204-02 Pair of specimen plates
B204-03 OT specimen preparation jig according to ASTM WK 26816
B204-13 OT specimen preparation jig according to Tex-248-F
Note: The quantity depends on the customer’s need.

OPTIONAL ACCESSORIES
B204-11 Silent air compression 750W
B204-11X Silent air compression 750W 230V 60Hz

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