Blown Bitumen

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Blown Bitumen

Blown Bitumen

Blown bitumen is produced by the reaction in vacuum baton (VB) and air in the reactors of the bituminous unit and according to the control of the process conditions, it is produced in different grades.

 

Profile Table

Penetration Grade-ASTM/AASHTO
Test Method 200-300 150-200 120-150 85-100 60-70 40-50 Unit Analysis
Limit
ASTM D70 or D3289 990-1040 1000-1050 1000-1050 1000-1050 1010-1060 1010-1060 kg/m³ Density @ 25°C
ASTM D5 200-300 150-200 120-150 85-100 60-70 40-50 mm/10 Penetration @ 25°C
ASTM D36 32 min 36 min 38min 42 min 46 min 49 min °C Softening Point
ASTM D113 100min 100min 100min 100min 100 min 100 min cm Ductility @ 25°C
ASTM D6 1max 0.5 max 0.5 max 0.5 max 0.2 max 0.2 max % Loss on heating
ASTM D5 20max 20max 20max 20max 20 max 20 max °C Drop in penetration after heating
ASTM D92 177 min 218 min 218 min 232 min 323 max 232 max wt% Flash point
ASTM D2042 99.09 min 99.09 min 99.09 min 99.09 min 99.09 min 99.0 min Solubility in Trichloroethylene
AASHTO 102 Negative Negative Negative Negative Negative Negative P Spot test
ASTM D 2171 200±50 250±50 450±90 1000±200 2000±400 4000±800 cSt Viscosity @ 60°C
ASTM D 2170 80 min 150 min 170 min 250 min 300 min 400 min Viscosity @ 135°C
Test on Residue From Thin Film Oven Test(ASTM D1754)
ASTM D5 40 min 46 min 46 min 50 min 54 min 58 min % Retained penetration after(T.F.O.T)
ASTM D113 100 100 100 75 50 50 cm Ductility (25°C),5cm/min, cm after TFOT
ASTM D 2171 1250max 2250 max 5000 max 1000 max 2000 max P Viscosity @ 60°C
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