Asphalt breaking point tester Manual

Used for determining the breaking point of solid and semi-solid bitumens. The Fraas 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 and flexed in accordance with specified conditions.

Features:

The instrument is composed of outer cylinder, temperature preservation cylinder, thermometer, lower plate, upper grip,fi xing rod, base, guide rail, sweeping block, handle, steelsheet and so on.

The temperature preservation cylinder is a double layer glass cylinder. It is used to place the dry ice and ethylalcohol mixtures. It is the cooling unit.

The lower plate and upper grip are metal sheets.The fi xing rod and movable rod are made of fabroil.

The base, guide rail, sweeping block and handle are used to changer the relative position of fi xing rod and movable rod to make the sample sheet bending.

Specification：