Boral supplies crushed rock and roadbase products engineered to deliver strength, compaction and durability across road, civil and construction applications. Our range includes specified roadbase, cement treated materials, recycled blends and general crushed rock, supplied from quarries across Australia.
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Specified roadbase
A well-graded material consisting of coarse and fine aggregates designed to meet nominated specifications and maximise compaction performance.
Best for
- Road and pavement construction
- Infrastructure projects requiring authority compliance
- Base and sub-base layers
Applications
- Road and pavement base layers
- Civil and infrastructure projects
- Hardstand areas, drainage and backfill
Features & benefits
- Supplied to nominated specifications (e.g. state road authority requirements)
- Designed to meet grading, plasticity and durability criteria
- Well-graded blend to maximise compaction and load distribution
- Available in natural and recycled material types
Supply format
- Bulk
Cement treated roadbase
A controlled mixture of crushed rock, fines, cement and water, blended to improve strength, durability and load-bearing performance.
Best for
- High-load pavements and heavy traffic areas
- Industrial hardstands and working platforms
- Projects requiring enhanced durability
Applications
- Road and pavement construction
- Hardstand and industrial surfaces
- Sub-base layers requiring additional strength
Features & benefits
- Increased strength and stiffness compared to unbound materials
- Improved durability and resistance to deformation
- Controlled blending for consistent performance
- Available using natural or recycled crushed rock inputs
Supply format
- Bulk
Unspecified crushed rock
A graded crushed rock material supplied without a nominated specification, suitable for general construction and cost-effective applications.
Best for
- General construction and site works
- Projects where formal specification is not required
- Cost-sensitive applications
Applications
- Drainage and backfill
- Hardstand areas and access tracks
- Under concrete slabs and asphalt
Features & benefits
- Well-graded material for effective compaction
- Flexible supply to suit project requirements
- Lower cost alternative to specified roadbase
- Available in a range of sizes and gradings
Supply format
- Bulk
Blended recycled roadbase
A graded material produced from a blend of recycled construction materials, typically crushed concrete combined with processed hard rock.
Best for
- Sustainable construction projects
- Civil works requiring cost-effective materials
- Lower sub-base and fill applications
Applications
- Road base and sub-base layers
- Backfill and site preparation
- Hardstands and slab foundations
Features & benefits
- Incorporates recycled materials to reduce reliance on virgin resources
- Comparable performance to natural roadbase in many applications
- Supports sustainability and circular economy outcomes
- Can be supplied with or without specification depending on project needs
Supply format
- Bulk
Rubbles
Coarse, irregular material made up of broken concrete, stone and brick, typically used for bulk fill and general construction applications.
Best for
- Bulk fill and site preparation
- Demolition and civil works
- Temporary access and stabilisation
Applications
- Fill material for site levelling
- Temporary access tracks
- Bulk construction and civil works
Features & benefits
- Supplied as coarse, irregular material
- Includes broken brick, stone and concrete from demolition sources
- Cost-effective solution for bulk fill applications
- Suitable for general construction and non-structural uses
Supply format
- Bulk
Typical uses across construction and infrastructure
Crushed rock and roadbase materials are widely used across:
- Road and pavement construction
- Driveways and access roads
- Hardstand and industrial areas
- Subdivisions and civil works
- Drainage and pipe bedding
These materials provide a compacted, load-distributing foundation layer beneath asphalt, concrete and other surfaces, supporting long-term performance and durability.
Choosing the right roadbase
| Product | Best suited for |
|---|---|
| Specified roadbase | Engineered projects with strict design or authority requirements |
| Cement treated roadbase | High-load applications requiring strength and durability |
| Blended recycled roadbase | Sustainable, cost-effective civil construction |
| Unspecified crushed rock | General construction and non-specified works |
| Rubbles | Bulk fill, site preparation and non-structural applications |
Technical specifications
Boral crushed rock and roadbase products are manufactured to meet relevant Australian Standards and state road authority specifications, with performance criteria including grading, compaction, durability and strength characteristics.
Regional specifications and availability
Boral crushed rock and roadbase can be supplied to meet relevant state and authority specifications, including Transport for NSW, VicRoads and Queensland TMR requirements. Availability and specification compliance may vary by quarry location.