Tests For Bitumin
1. Penetration Test:
- It is done to obtain hardness & softness of bitumin.
- This test is used to describe the grade of bitumin.
- Euipment used is Penetrometer.
- Temperature at which the test is conducted is 25 degree Celsius.
- Result: 1 in 10 mm(i.e 80 notation reading shows 8 mm penetration).
2. Ductility Test:
- This test is done to obtain the flexibility of pavement material from (10x10)mm stranded bracket.
- Euipment used is Ductility Testing Machine.
- Temperature at which the test is conducted is 27 degree Celsius.
- Standard result is always greater than 75 cm.
3. Viscosity Test:
- This test is done to obtain the viscosity of pavement material.
- Euipment used is Orifice Viscometer (Size of Orifice 3-10 mm).
- Temperature at which the test is conducted is 35 degree Celsius.
- Quantity of bitumin material used is 50-200 ml.
4. Softening Point Test:
- It is the measure of softening of bitumin at a particular degree of practical use.
- It is measured by ring and ball apparatus.
- Temperature at which the test is conducted is 60 degree Celsius.
- Distance of two plates is 2.54 cm.
5. Flash & Fire Point Test:
- It is a Safety Test.
- Flash Point: It is a temperature at which vapours catch momentary fire.
- Fire Point: It is a temperature at which vapours catch fire for 5secs (atleast)
- Euipment used is Pensky & martin apparatus.
- As per Indian Road Congress(IRC) 175 degree Celsius is the minimum flash point and 200 degree Celsius is fire point.
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