Boral supplies fly ash and ground granulated slag in Australia as supplementary cementitious materials (SCMs) for use in concrete and cement applications, including Fine Grade Fly Ash, Medium Grade Fly Ash and ENVIROMENT® ground granulated slag. These supplementary cementitious materials are used to enhance concrete performance, durability and workability across a wide range of construction and infrastructure projects.
Boral’s fly ash and slag products are supplied to support consistent quality, reliable performance and project‑specific requirements, with technical guidance available to assist with specification and mix design.
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Choose the right fly ash or slag product
Boral’s fly ash and slag products are available in different grades and formats to suit specific applications and performance requirements. Use the guide below to select the most appropriate product for your project.
Fine Grade Fly Ash
Fine Grade Fly Ash is a finely classified fly ash suitable for use as a supplementary cementitious material in concrete. When used as a partial replacement for Portland cement, Fine Grade Fly Ash can contribute to improved workability, long‑term strength development and durability.
It is commonly used in:
- Structural concrete
- Slabs, foundations and pavements
- Applications where a finer particle size supports smoother placement and finishing
Best for:
- General concrete applications
- Structural concrete
- Situations requiring improved workability and finish
Supply Format:
Bulk Cement
Product Downloads
Medium Grade Fly Ash
Medium Grade Fly Ash has a coarser particle size compared to Fine Grade Fly Ash and is typically used where thermal control and durability are key considerations. It is often specified in large pours and infrastructure projects.
Typical applications include:
- Dams and major civil works
- Mass concrete elements
- Projects where reduced heat generation is important
Best for:
- Mass concrete
- Infrastructure and civil construction
- Projects requiring heat of hydration management
Supply Format:
Bulk Cement
Product Downloads
ENVIROMENT® Ground Granulated Slag
ENVIROMENT® is Boral’s ground granulated blast furnace slag product, used as a supplementary cementitious material in concrete and blended cement systems. When specified correctly, ENVIROMENT® can enhance resistance to sulphates and chlorides while supporting long‑term durability.
ENVIROMENT® is commonly used in:
- Marine and coastal structures
- Infrastructure projects
- Concrete exposed to aggressive ground or water conditions
Best for:
- Aggressive and marine environments
- Infrastructure and durability‑critical applications
- Projects targeting enhanced resistance to chemical attack
Supply Format:
- Bulk
- Bulk bags