Description :- 
Unit consists of mould press, bending apparatus (made of brass as per required / specified dimensions), plaque (as per required / specified dimensions), cooling apparatus (made of glass), digital temp indicator with PT100 sensor, and plate and stand.

Frass breaking point is the temperature at which bitumen first becomes brittle as indicated by the appearance of cracks when a thin film of the bitumen on a metal plaque is cooled & flexed in accordance with the specified condition.

The apparatus consist of bending apparatus plaques specimen made up of spring steel 41 mm long x20mm width & 0.15 mm thick, cooling apparatus made up of glass jars as per given specification. Digital temp. Indicator & mould press for uniform thickness of bitumen specimen on plaque. The whole instrument is fixed on a CRCA powder coated plate.