Bitumen C320 Description

Bitumen C320 is a paving grade bitumen manufactured to AS 2008 Table 2.2 and is suitable for medium to heavy asphalt applications as well as for heavy-duty and hot climate seals.

C320 Applications

Bitumen C320 is primarily for use in asphalt, but can also be sprayed as a sealing binder for heavy-duty applications and in hot desert regions. In asphalt applications, appropriate mixture and pavement designs should be employed to maximize the performance of the asphalt layer in service.

Recommended handling data for asphalt applications are as follows:

Mixing Temperature	Holding time at Mixing Temperature	Medium term storage temperature	Medium term storage time	Maximum safe handling temperature
165-175°C	14 days	130-150°C	30 days	185°C

Sealing recommendations

Spraying Temperature	Holding time at spraying temperature	Medium term storage temperature	Medium term storage time	Minimum pavement temperature
170-185°C	7 days	130-150°C	30 days	15°C

Health & safety

Viva Bitumen C320 is unlikely to present any significant health or safety hazard when properly used in the recommended application where good standards of industrial practice are maintained.

Bitumen C320 Typical characteristics

Description	Units	Methods	Typical
Viscosity at 60° C	Pa.s	AS 2341.2	320
Viscosity at 135° C	Pa.s	AS 2341.2	0.5
Pen at 25° C	dmm	AS 2341.12	min 40
Flashpoint	° C	AS 2341.14	min 250
Viscosity of residue at 60° C (% of original)	Pa.s	AS 2341.2	max 300

Bitumen, also known as asphalt in the United States, is a substance that forms through the distillation of crude oil. It has waterproofing and adhesive properties. Bitumen production through distillation removes lighter crude oil components, such as gasoline and diesel, leaving the “heavier” Asphalt behind. The producer often refines it several times to improve its grade.