Cement Bound Granular Mixtures (CBGM)

Improved performance

As a ‘structural’ layer, CBGM offers benefits of improved whole life costing, with minimal repairs likely in comparison with an asphalt product. Depending on the design, CBGM performance can be equivalent to those of bitumen-bound materials. Research has shown that sub-bases could be laid up to 60% thinner than unbound granular sub-base, while producing an equivalent or better performance (TRL 248).

Lower cost

Using todays more versatile design approach, CBGM can be used as a sub-base replacement, providing the opportunity to reduce the thickness of the more expensive, overlying, pavement layers. In addition there is a reduction in excavation and muck shift works prior to construction. This has the added benefit of reducing contract duration which in itself is one of the largest potential cost savings.

Sustainable construction

Since CBGM can incorporate recycled or artificial materials, primary aggregate extraction can be minimised. The use a locally won aggregate when compared with the more stringent requirements of asphalt production may also prove beneficial in terms of cost, as well as CO2.

Harbours

Perfectly suited for harbour infrastructure, CBGM can be used to form the foundation or base of a pavements for harbours.

Airfields

Airfield pavements typically see a lot of vehicle and foot traffic and require the durability that CGBM offers.

Ports

CBGM is designed to performance in extreme conditions, offering heavy duty pavement solutions to meet the hard wearing demands of a port environment.

Pavement Construction

CBGM is ideal for constructing foundations or pavement bases.

Loading and storage

CBGM is well suited for installation in most external loading & storage environments as it is typically used to form the foundation or base of a paved area or road.