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Australian Standard - Viscosity Grade Bitumen Specification (AS2008-2013)

The properties of bitumen for roadmaking are specified in AS 2008-2013 Residual Bitumen for Pavements. This Australian Standard classifies and specifies the properties of conventional pavement-grade Bitumen most widely used in Australia. The following class is most commonly used in sprayed sealing works in Australia:

Class 170: the most used class for sprayed sealing                                                                

Class 240: higher viscosity binder (compared to C170) used by some road agencies in warm climates.

Class 320: higher viscosity binder (compared to C170 and C240) sometimes used for sprayed sealing in areas where pavement temperatures or traffic stresses were high but has been largely superseded by PMBs and multigrade bitumen.

Specification Explanations Units Class 170 Test Methods
Viscosity, 140°F (60°C) Pa.s 140-200 AS/NZS 2341.2
Viscosity, 275°F (135°C) Pa.s 0.25-0.45 AS 2341.3
Penetration, 77°F (25°C), 100g, 5sec, Min 0.1MM 62 AS 2341.12
Flashpoint, Min °C 250 AS 2341.14
Matter Insoluble in toluene, Max %Wt 1 AS/NZS 2341.20 or 2341.8
Density at 15°C Kg/m3 Report AS 2341.7
Tests on residue from thin-film oven test(RTFO):
Viscosity, 140°F (60°C) Pa.s - AS/NZS 2341.10 or 2341.2
    - ASTM D2872
Viscosity of RTFO residue as % of Original % 300Max AS/NZS 2341.10 or 2341.2
    340Max ASTM D2872
Penetration at 25°C after RTFO 0.1mm - AS/NZS 2341.10 or 2341.12
Mass Change % - AS/NZS 2341.10 or 2341.12

Specification Explanations Units Class 240 Test Methods
Viscosity, 140°F (60°C) Pa.s 190-280 AS/NZS 2341.2
Viscosity, 275°F (135°C) Pa.s 0.32-0.55 AS 2341.3
Penetration, 77°F (25°C), 100g, 5sec, Min 0.1MM 53 AS 2341.12
Flashpoint, Min °C   AS 2341.14
Matter Insoluble in toluene, Max %Wt   AS/NZS 2341.20 or 2341.8
Density at 15°C Kg/m3   AS 2341.7
Tests on residue from thin-film oven test(RTFO):      
Viscosity, 140°F (60°C) Pa.s - AS/NZS 2341.10 or 2341.2
    - ASTM D2872
Viscosity of RTFO residue as % of Original % 300Max AS/NZS 2341.10 or 2341.2
    340Max ASTM D2872
Penetration at 25°C after RTFO 0.1mm - AS/NZS 2341.10 or 2341.12
Mass Change % - AS/NZS 2341.10 or 2341.12

Specification Explanations Units Class 320 Test Methods
Viscosity, 140°F (60°C) Pa.s 260-380 AS/NZS 2341.2
Viscosity, 275°F (135°C) Pa.s 0.4-0.65 AS 2341.3
Penetration, 77°F (25°C), 100g, 5sec, Min 0.1MM 40 AS 2341.12
Flashpoint, Min °C   AS 2341.14
Matter Insoluble in toluene, Max %Wt   AS/NZS 2341.20 or 2341.8
Density at 15°C Kg/m3   AS 2341.7
Tests on residue from thin-film oven test(RTFO):      
Viscosity, 140°F (60°C) Pa.s Report AS/NZS 2341.10 or 2341.2
    Report ASTM D2872
Viscosity of RTFO residue as % of Original % 300Max AS/NZS 2341.10 or 2341.2
    340Max ASTM D2872
Penetration at 25°C after RTFO 0.1mm Report AS/NZS 2341.10 or 2341.12
Mass Change % Report AS/NZS 2341.10 or 2341.12

Specification Explanations Units Class 450 Test Methods
Viscosity, 140°F (60°C) Pa.s Report AS/NZS 2341.2
Viscosity, 275°F (135°C) Pa.s 0.70Max AS 2341.3
Penetration, 77°F (25°C), 100g, 5sec, Min 0.1MM Report AS 2341.12
Flashpoint, Min °C   AS 2341.14
Matter Insoluble in toluene, Max %Wt   AS/NZS 2341.20 or 2341.8
Density at 15°C Kg/m3   AS 2341.7
Tests on residue from thin-film oven test(RTFO):      
Viscosity, 140°F (60°C) Pa.s 750-1150 AS/NZS 2341.10 or 2341.2
    850-1300 ASTM D2872
Viscosity of RTFO residue as % of Original % Report AS/NZS 2341.10 or 2341.2
    340Max ASTM D2872
Penetration at 25°C after RTFO 0.1mm 26Min AS/NZS 2341.10 or 2341.12
Mass Change % 0.6 Max AS/NZS 2341.10 or 2341.12

Specification Explanations Units Class 600 Test Methods
Viscosity, 140°F (60°C) Pa.s 500-700 AS/NZS 2341.2
Viscosity, 275°F (135°C) Pa.s 0.60-0.85 AS 2341.3
Penetration, 77°F (25°C), 100g, 5sec, Min 0.1MM 20 AS 2341.12
Flashpoint, Min °C   AS 2341.14
Matter Insoluble in toluene, Max %Wt   AS/NZS 2341.20 or 2341.8
Density at 15°C Kg/m3   AS 2341.7
Tests on residue from thin-film oven test(RTFO):      
Viscosity, 140°F (60°C) Pa.s - AS/NZS 2341.10 or 2341.2
    - ASTM D2872
Viscosity of RTFO residue as % of Original % 300Max AS/NZS 2341.10 or 2341.2
    340Max ASTM D2872
Penetration at 25°C after RTFO 0.1mm - AS/NZS 2341.10 or 2341.12
Mass Change % - AS/NZS 2341.10 or 2341.12