DUCTILITY TEST OF THE BITUMEN
Minimum values of ductility specified by ISI for various grades are as follows.
Source of paving
bitumen and penetration grade Min ductility value (cms)
Assam Petroleum A2Z. =5
A35 =10
A45 =12
A65, A90 and A200. =15
Bitumen from sources other than
Assam Petroleum
S35 =50
S45, S65 and S90 =75
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