This method is used for determining the ductility of bituminous materials by measuring
the elongation before breaking when two ends of a briquette specimen are pulled
apart at a specified speed and temperature. The test is performed with a ductility machine,
which can be fitted with a liquid refrigerator- circulator to perform tests at a temperature below 25°C or for use in tropical areas.
Generally, the ductility is a measure of the cementing power of the asphaltic material .However , it should be noted that the exact value of the ductility is not so important as the mere presence or lack of ductility .
Standard : ASTM D113 , AASHTO T51
Test - equipment
LL METHOD
- Ductility testing machine.
Accessories:
-
Ductility mould. Made of brass, accurately machined to the specified dimensions. Weight 200 g
-
Ductility mould plate