The BPA 5 automatic Fraass breaking point tester determines the brittle behavior of bitumen at low temperature. A thin flat steel plaque, coated with the sample, is flexed under specified conditions at a descending series of temperatures until a crack occurs. BPA 5 is suitable for bitumen and in combination with the optional BPACon software it can also be used for other non-standardized research applications.
EN 12593, JIS K 2207, IP 80
Application Range (depending on cooler circuit):
approx. -45 °C to 60 °C
The automatic breaking point tester determines the brittle behavior of bitumen at low temperatures.The Fraass breaking point is the temperature at which the first crack appears in the coating of a thin, flat steel plaque flexed under descending temperatures.
The DDA 3 automatic ductility meter offers 3 simultaneous test places to measure the following bitumen properties:
Ductility or elongation is measured by the distance to which a sample will elongate before breaking.
Elastic recovery is measured by the recoverable strain determined after severing an elongated briquette specimen. Additive-containing bitumen will provide a significant elastomeric characteristic.
Force ductility measures tensile properties and the deformation energy.
Elongation: ASTM D113, JIS K 2207, AASHTO T51, DIN 52013
Recovery: ASTM D6084, EN 13398, IP 516
Force: EN 13589, EN 13703, AASHTO T300, IP 515, IP 520
-10 °C to 40 °C
Automatic rupture detection:
above 20 mN
The bitumen is cast into a brass mold. The briquette is then pulled apart in a water bath at a defined temperature until it ruptures. The rupture distance indicates the cohesiveness and general tensile properties of the material.