Standards used for different bitumen classifications
(Bitumen classification based on penetration degree at 25°C) ASTM D946 and AASHTO M20
(Bitumen classification based on viscosity at 60°C) ASTM D3381 and AASHTO M226
(Bitumen classification based on performance grade (PG)) ASTM D6373 and AASHTO M320
; etc.NF EN; BS EN; DIN EN (Bitumen classification based on penetration rate at 25°C) EN 12591
(Bitumen classification based on viscosity at 60°C) AS 2008
(RTFOT Bitumen classification based on penetration rate at 25°C; Bitumen classification based on viscosity at 60°C after testing) SABS 307
IS 73 (India)
In 2007, the classification based on penetration rate was changed to viscosity classification (based on viscosity at 60°C); however, modified bitumens
.are still classified based on penetration rate (according to the aforementioned standard)(CRMB) with rubber powder
Polymer modified bitumens
ASTM D5976; ASTM D5840; ASTM D5841
Based on the type of polymer used; Now obsolete in the USA, but still used in some developing countries
ASTM D6373 and AASHTO M320
Bitumens classified by performance grade (PG) applicable to pure bitumens as well as polymer-modified bitumens.
EN 14023
Quality control of polymer-modified bitumens
Characterization according to standards developed by AUSTROADS (Australia), Australian Standards for Road Construction, Planning and Design
Bitumen emulsions (anionic; cationic; unmodified; polymer-modified)
Anionic emulsions USA: ASTM D977 and AASHTO M140
Cationic emulsions USA: ASTM D 2397 and AASHTO M208; Polymer-modified bitumen emulsions: AASHTO M316
Europe: Harmonized standard EN 13808 for unmodified and polymer-modified cationic emulsions
Appendices. (A wide range of specifications for bitumen emulsions is available internationally; many of which are technically incorrect and misleading.)
Soluble bitumens
ASTM D2026, ASTM D2027 and ASTM D2028 for fast-setting and slow-setting soluble bitumens
AASHTO M81 and AASHTO M82 for fast-setting and slow-setting soluble bitumens
EN 15522 for fluidized bitumen binders and soluble bitumens
