bitumen 35-50

Peneration Grade
Bitumen analysis 35-50
Analyze
Specification
Test method
Specific gravity @ 25 ºc /25ºc
To be reported
D70
Penetration @ 25ºc , dmm
35-50
D5
Softening Point , ºc
50-58
D36
Flash point , ºc
≥ 240
D92
Solubility in trichloroethylene, Wt %
≥ 99
D2042
Test Of Residue Bitumen After Rolling Thin Film Oven Test @ 163 ºc
Retained penetration @ 25 ºc  of original , %
≥ 53
EN12607-1
Increase the softening point under normal conditions ,ºC
Or
Increase the softening point  more than usual , ºC
≤ 8
or
≤ 11
EN12607-1
Change in mass @ 25 ºC (After RTFOT) , Wt %
≤ 0.5
EN12607-1
Permeability index
NR
           or           
-1.5   to  +0.7
EN12607-1
Fraass breaking point , ºC
≤ -5
or
NR
EN12593
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