Boral no-fines concrete is a specialist concrete mix designed for high permeability and drainage applications.
Produced without fine aggregates (sand), it creates an open structure that allows water to pass through the material, making it suitable for non-structural uses such as drainage layers, backfill and sub-base applications.
Features and benefits
High permeability and drainage performance
Allows water to pass through the material, supporting drainage and reducing water build-up.
Lightweight and efficient fill material
Lower density compared to conventional concrete, making it suitable for backfill and void filling applications.
Cost-effective non-structural solution
Simplified mix design reduces material usage and supports efficient installation for drainage-focused applications.
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Applications
No-fines concrete is typically used in applications where drainage and permeability are required, but structural strength is not critical, including:
- Drainage layers and sub-bases
- Backfill behind retaining walls
- Landscaping and garden structures
- Parks and civil works
- Lightweight fill applications
No-fines concrete is best suited to applications where drainage is the primary requirement, rather than trafficable or structural surfaces.
How no-fines concrete differs from permeable concrete systems
No-fines concrete is often used in applications requiring drainage, but it differs from permeable concrete systems such as PermCon.
No-fines concrete is:
- A mix design without sand
- Typically used in non-structural applications
- Designed primarily for drainage and lightweight fill
By contrast, permeable concrete systems such as Boral PermCon are designed to provide both permeability and structural performance, enabling their use in trafficable surfaces.