What is the fire point test conducted on Bitumen also known as? 

Explanation:

The fire point test on bitumen determines the temperature at which bitumen gives off sufficient vapors to ignite and sustain a flame for at least 5 seconds.

• This is important for safety during heating and handling of bitumen.

• The Pensky Marten apparatus is used to determine both the:

  • Flash point – the lowest temperature at which vapors ignite momentarily.

  • Fire point – the temperature at which it continues to burn for 5 seconds.

Additional InformationSoftening Point Test

• Measures the temperature at which bitumen softens sufficiently under heat.

• Indicates the temperature susceptibility of bitumen—how it behaves under rising temperatures.

• A higher softening point means better resistance to deformation in hot climates.

Penetration Test

• Evaluates the hardness or softness of bitumen at a standard temperature.

• The penetration value helps grade the bitumen (e.g., 60/70, 80/100).

• Useful for understanding how the bitumen will perform under traffic loads and temperature changes.

Flash Point Test

• Identifies the lowest temperature at which bitumen emits enough vapors to ignite momentarily.

• Important for safety during heating and application.

• If the flash point is too low, it may lead to fire hazards during road construction.