HBM / CBGM
Reduce road construction depth by 50% and costs by 40% with Roadways HBM.
Roadways HBM is a Hydraulically Bound Material made with 100% recycled aggregates. Roadways supplies this cement-bound recycled aggregate material for builders, local authorities, groundworkers and private customers who need a practical, cost-effective alternative to traditional loose aggregates.
This highly versatile material is designed as a direct replacement for Type 1 or 6F5 in the lower layers of construction projects, or for road base and binder course asphalt layers in certain highway applications.
HBM is a high-performance sub-base aggregate produced from recycled aggregates graded from 0 to 20mm and blended uniformly with cement and GGBS cementitious material. Once laid and properly compacted, the cement activates to bind the material together as it cures. This process forms a stable, solid, semi-flexible foundation that resists ground movement.
See HBM in action:
- See how Roadways built Southampton roads three times deeper for the same budget using HBM: Southampton Road Recycling Programme.
- See how the construction depth of the A27 Arundel S278 works was reduced by half using HBM: A27 Arundel S278 HBM case study.
Best used for:
- Private roads and shared residential driveways
- Farm tracks, agricultural access roads and rural estate paths
- Commercial yards and industrial storage areas
- Hardstandings and temporary construction site access
- Car parks and structural aggregate sub-bases
Product specifications and benefits:
- Composition: Carefully graded 0 to 20mm recycled aggregates blended uniformly with roughly 2% cement and 3% GGBS.
- Performance: Structural binding locks the material securely in place, delivering a longer-lasting foundation with far less shifting than loose stone.
Technical specifications and compliance:
- Compliance: Produced to relevant British Standards and highways specifications, including BS 9228 and the operative Specification for Highway Works, with legacy Clause 948 references or equivalent provisions in the 2025 MCHW.
- Departures: No departures from standard are required.
Collection:
Collection or self-lay use must be agreed technically in advance.
Collection from Woodside Depot, Polegate Road, Hailsham, East Sussex, BN27 3PG.
Delivery:
Bulk delivery options are available across Kent, Surrey, East Sussex and West Sussex.
Normally available for loads over 60 tonnes.
To ensure your required grade and volume are ready for you, please order large quantities in advance.
Get a quick quote. Call our office at 01323 848 822 to discuss technical suitability, stock availability and supply or installation options. Alternatively, email us at info@road-ways.co.uk for rapid bulk pricing information.
ROADWAYS THE RIGHT WAY – build more, sustainable, cost-effective, compliant.
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