Duralayer® Multi is a dense material design for single layer applications. It is suited to a variety of asphalt surfacing applications where a low textured and deformation resistant one layer treatment is required.

Duralayer® Multi was designed following a request from a local authority for a cost-effective, single layer solution. It utilises locally sourced aggregates and is suitable for a variety of applications including major roads, rural roads, housing estates, car parks, caravan parks and trench reinstatements.

The product’s unique design creates a low surface texture and controlled low air voids. This resists water
ingress, providing a more durable surfacing solution. Duralayer® Multi doesn’t segregate like traditional materials, making it also ideal for handlay applications.

Duralayer® Multi is available in 20mm, 14mm, 10mm and 6mm nominal sizes and is laid using conventional
paving equipment in line with BS 594987.

Duralayer® Multi+
Utilises the same unique design as Duralayer® Multi
and provides enhanced fuel resistance and stiffness.

Layer thickness

Details of constituent quality and layer thickness shown below:

  • 6mm nominal size 30 – 60mm
  • 10mm nominal size 40 – 80mm
  • 14mm nominal size 50 – 100mm
  • 20mm nominal size 60 – 150mm

Benefits

  • Single layer installation
  • Less disruption through quicker installation
  • Increased durability through low voids content
  • Low design void content assists compliance with SROH requirements
  • Prevents water ingress
  • Resistance to deformation
  • Sustainable product
  • Duralayer® Multi+ has fuel resisting properties
  • 100% recyclable

Also available in the following options:
era®/CleanAir®/CarbonLock®/RAP

Applications

  • All classifications of roads
  • Housing estates
  • Car and caravan parks
  • Footpaths
  • Trenches

Duralayer® Multi technical data

Typical performance figures  * Typical value for surface texture.

Material propertyTest specificationTypical result
Design void contentBS EN 12697-6≤ Vmax 5.0%
Water sensitivityBS EN 12697-12 Method A (ITSR) BS EN 12697-23≥ 80%
RTPD (wheel tracking)BS EN 12697-22 Procedure B WTS in Air≤ 1.0mm/103
(40/60)
 

Please see asphalt product matrix for further information or contact technical:
northasphaltsales@uk.heidelbergmaterials.com
southwestasphaltsales@uk.heidelbergmaterials.com
southwalesasphaltsales@uk.heidelbergmaterials.com
southeastasphaltsales@uk.heidelbergmaterials.com

 

References

Rural road improvements

Rural road improvements