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Stone Mastic Asphalt
SMA
Increasing traffic volumes, higher axle loads, changes in our climate − the challenges road construction experts around the globe have to face.
Stone Mastic Asphalt (SMA) has shown its outstanding performance on a variety of road surfaces throughout the world for more than 40 years − making SMA one of the most popular surfaces courses used.
SMA is based on the concept of a self-supporting stone skeleton, with a thick mastic and high binder content. This is made possible by using high performance fiber pellets. The low void content makes the compacted layer practically impermeable to water.
- Safe
- Versatile
- Durable
- Economic
With these features, SMA fulfils all the requirements of modern infrastructure − offering its benefits to road users, local authorities and the asphalt industry alike.
Stone Mastic Asphalt (SMA)
Surface Courses
The perfect solution to meet the challenges of modern roads - mobility at its best, all around the world.
The Concept
Aggregates
Crushed high quality aggregates for a self-supporting stone skeleton with a discontinous gradation
Binder
Higher bitumen content to achieve thicker binder films
Additive
VIATOP® Das Pellet.
Bitumen coated fiber pellets to inhibit binder drainage!
Advantages / Benefits of Stone Mastic Asphalt
Safe
- Excellent skid resistance
- Better visibility
- Minimized aquaplaning
Reliability
- Long term approved mix design
- Controlled mix production
- Easy to lay and compact
Economical
- Sustainable use of financial fund
- Less maintenance costs
- The mix with spare capacity
Durable
- Best deformation resistance
- Convincing performance against wear and tear
- Impermeable due to low air void content
- Outstanding long service life
Versatile
- For Highways
- For Motorways
- For National roads
- For Cityroads
- For Airports
- For industrialareas