Bitumen C170 is a curing-grade cutback bitumen designed for surface treatments, tack coats, and light paving applications. This cutback bitumen offers fast evaporation of solvent, quick curing time, and reliable adhesion, making Bitumen C170 an efficient choice for cold-weather and low-traffic road maintenance projects.
Bitumen C170 is a viscosity-graded bitumen manufactured to Australian Standard AS 2008 specifications, with a viscosity of approximately 170 Pa·s at 60°C. As one of the most widely used grades in Australia, Bitumen C170 offers reliable performance for general-purpose road construction and sprayed sealing applications.
Bitumen C170 is extensively used in sprayed sealing, asphalt production, and general road surfacing across Australian conditions. Its balanced viscosity provides strong binding strength and durability under standard traffic loads. Bitumen C170 also suits primer sealing and stabilization work requiring dependable adhesion and weather resistance.
Blackrock Bitumen supplies high-quality Bitumen C170 manufactured to meet Australian Standard AS 2008 viscosity and quality requirements. Our Bitumen C170 undergoes strict quality testing to ensure consistent performance for contractors and infrastructure projects across Australia. Choose Blackrock Bitumen for reliable, compliant, and specification-grade Bitumen C170 supply.
We deliver bitumen in versatile, secure options: economical Jumbo Bags, robust steel Drums, or high-volume Bulk Containers (Bitutainers/Bituboxes).
Australian Standard Bitumen C170 is a medium-viscosity paving binder designed for spray sealing and road maintenance, delivering reliable adhesion, durability, and consistent performance under Australian climate conditions.
C170 is a viscosity-graded bitumen produced to Australian Standards, commonly used in sprayed sealing and road construction applications.
C170 is widely used for spray seals, chip sealing, and maintenance works on roads exposed to moderate traffic loads.
C170 offers balanced viscosity and durability, providing reliable adhesion and performance across varied Australian weather conditions.
Yes, C170 bitumen supplied by Black Rock Bitumen meets relevant Australian Standards for consistency, quality, and performance.
It delivers good workability, strong aggregate bonding, and dependable long-term pavement performance in spray seal applications.
Bitumen C170 is specified under AS 2008:1997 (Residual Bitumen for Pavements), published by Standards Australia. It is also referenced in Austroads pavement design and construction guides, which serve as the technical authority for road design across all Australian states and territories.
C170 can be used in hot mix asphalt (HMA) for cold-climate applications and low-volume roads where flexibility and cold-temperature performance are priorities. For standard HMA on national highways in temperate climates, C240 or C320 is typically specified. For hot Australian climates, C450 or C600 is recommended.
Bitumen C170 should be applied at 165–175°C for sprayed sealing operations to achieve optimal spray viscosity. For prime coat applications, lower temperatures (140–160°C) are typical. Application temperatures must comply with Austroads specifications and the project's bitumen spray rate design.
Bitumen C170 is available in bulk heated liquid tankers (for importers with heated receiving facilities), 200 kg new steel drums, and flexi-bag containers for certain shipping configurations. Minimum order quantities and pricing are available upon request.
AS 2008:1997 classifies paving bitumens by their dynamic (absolute) viscosity at 60°C in Pascals-seconds (Pa·s), which corresponds to kinematic viscosity in mm²/s. The five standard classes are C170, C240, C320, C450, and C600, where the number represents the nominal kinematic viscosity target. Higher numbers indicate stiffer, more viscous binders suitable for hotter climates and heavier traffic.
