The flash point temperature (degree C) of paving grades of bitumen as per the Indian standard is:

Question

Question

This question was previously asked in

DDA JE Civil Official Paper Shift 1 (Held on 23 April 2018)

Answer 1

Explanation:

Flash Point:

The flash point of a material is the lowest temperature at which the vapour of a substance momentarily takes fire in the form of a flash under the the specified conditions of the test.

Fire Point:

The fire point is the lowest temperature at which the material gets ignited and burns under the specified condition of the test.

As per IS 73 (2013): Paving Bitumen

The requirements for paving bitumen are as follows:

Characteristics	Paving Grades
Characteristics	VG10	VG20	VG30	VG40
Penetration at 25°C, 100 g, 5 s, 0.1 mm, Min	80	60	45	35
Flash point (Cleveland open cup), °C, Min	220	220	220	220
Softening point (R&B), °C, Min	40	45	47	50