Bitumen C450 – High Viscosity Cutback Bitumen for Heavy-Duty Applications

Bitumen C450 is a high-viscosity cutback bitumen engineered for heavy-duty paving, surface treatments, and demanding road construction projects. This cutback bitumen delivers strong adhesion and durable binding strength, ensuring Bitumen C450 performs reliably under high traffic loads and challenging weather conditions.

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What Is Bitumen C450?

Bitumen C450 is a viscosity-graded bitumen manufactured to Australian Standard AS 2008 specifications, with a viscosity of approximately 450 Pa·s at 60°C. Harder than the C320 grade, Bitumen C450 offers exceptional stiffness and deformation resistance, making it suitable for specialized heavy-duty and high-temperature applications.

Bitumen C450 is primarily used in specialized asphalt applications, industrial hardstands, and heavy-load pavements requiring maximum rutting resistance. Its very firm consistency supports extreme axle loads and high in-service temperatures. Bitumen C450 also suits specific stabilization and structural applications demanding superior strength and durability.

Blackrock Bitumen supplies high-quality Bitumen C450 manufactured to meet Australian Standard AS 2008 viscosity and quality requirements. Our Bitumen C450 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 C450 supply.

Applications of Bitumen C450

Dense-graded asphalt

Dense-graded asphalt (DGA) wearing and binder courses on Northern Territory highways, tropical Queensland motorways, and Pilbara WA resource roads, where pavement temperatures exceed 60°C

Heavy-haul mine access roads

Heavy-haul mine access roads serving Pilbara iron ore, Queensland coal, and NT bauxite operations, where road trains and heavy mining vehicles impose sustained extreme loads on unshaded desert pavements

Airport runway

Airport runway and taxiway construction at Darwin, Cairns, Townsville, Broome, and Karratha airports, where AS 2008 C450 provides the stiffness needed to resist permanent deformation under aircraft loading in tropical heat

Port and logistics hub

Port and logistics hub road networks in tropical northern Australia, where container handling equipment and road trains impose slow-speed very heavy vehicle loading on sun-exposed pavement

Advantages of C450 Bitumen

Strong Adhesion

Bonds effectively with aggregates and surfaces.

Excellent Workability

Allows easy mixing, spreading, and handling.

Cold Application

No heating required, ensuring safer operations.

Uniform Coating

Ensures consistent coverage and better performance.

Slow Setting

Provides extended working time for mixing and application.

Good Penetration

Effectively penetrates base layers for strong bonding.

Black Rock Bitumen C450

Essential Details

Description

  • Type
  • Penetration Grade Bitumen
  • Compliance Standard
  • Manufactured to comply with AS 2008 Table 2.2 (Bitumen for Pavements)
  • Primary Use
  • High-stress environments: highways, intersections, airport runways, and industrial pavements.
  • Feedstock Source
  • Derived from the refining of crude petroleum, typically sourced from Middle Eastern heavy crudes known for high bitumen yield.
  • HS Code
  • 2713.20.00 (Petroleum Bitumen)
  • Physical Appearance
  • Black, solid or semi-solid at ambient temperature; becomes a highly viscous liquid when heated.

Bitumen C450 Specification

Australian Standard Bitumen C450 Specifications

Essential Details

Test Method

Unit

Min.

Max.

  • Viscosity at 60 °C (after RTFO)
  • AS 2341.2
  • Pa.s
  • 750
  • 1150
  • Viscosity at 135 °C
  • AS 2341.2 / 2341.4
  • Pa.s
  • -
  • Max 0.70
  • Penetration at 25 °C, 100g, 5s (after RTFO)
  • AS 2341.12
  • 0.1 mm
  • Min 26
  • -
  • Flash Point
  • AS 2341.14
  • °C
  • 250
  • –
  • Matter Insoluble in Toluene
  • AS 2341.8
  • % mass
  • –
  • 1.0
  • Density at 15 °C
  • AS 2341.7
  • $t/m^3$
  • 1.00
  • -
  • Durability (Days)
  • AS 2341.13
  • Days
  • 7
  • –

Bitumen C450 MSDS

pdf

Bitumen C450 Safety Data Sheet

Download
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Our Packaging

We deliver bitumen in versatile, secure options: economical Jumbo Bags, robust steel Drums, or high-volume Bulk Containers (Bitutainers/Bituboxes).

Terms of Payment

Payment Terms for Smooth Transactions

TT Method

The buyer pays 30% advance, with the balance against B/L draft (CFR) or customs docs (FOB).

LC at Sight

100% irrevocable, non-transferable, confirmed LC at sight, subject to bank approval by Black Rock Bitumen.

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    Successful Shipments

    Shipping & Delivery

    Port of Loading

    Jebel Ali, UAE – strategically located logistics hub ensuring efficient global shipping and quick turnaround times.

    Delivery Terms

    FOB, CIF, CFR – flexible Incoterms tailored to meet client requirements and international trade standards.

    Inspection

    SGS / Bureau Veritas available – third-party inspection to ensure quality, compliance, and shipment transparency.

    Lead Time

    2–4 weeks depending on order volume – optimized production and logistics planning for timely delivery.
    Our faqs

    Frequently Asked Questions.

    Australian Standard Bitumen C450 is a high-viscosity paving grade delivering strong durability and deformation resistance for heavy traffic roads.

    C450 is a high-quality penetration-grade bitumen produced according to Australian standards, ideal for heavy-duty road construction and infrastructure projects.

    What are the main applications of C450 bitumen?

    It is commonly used for asphalt paving, road surfacing, airport runways, and industrial flooring where durability and high load resistance are required.

    C450 offers excellent resistance to rutting in hot climates and good flexibility in cooler conditions, ensuring long-lasting road performance.

    It meets Australian Standard AS 2008, providing consistent penetration, softening point, and viscosity parameters suitable for heavy traffic applications.

    We provide premium-grade C450 with reliable quality, timely global delivery, and technical support for construction projects of all scales.