Stone Mastic Asphalt

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
Stone Mastic Asphalt

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

  • high grit content
  • high proportion of the coarsest grain class
  • higher binder content for thicker binder films

Bituminized fibrous pellets VIATOP®

have a beneficial effect on fatigue and aging behavior due to the thicker binder films!

Stone Asphalt
Stone Asphalt
Stone Asphalt
Stone Asphalt

Advantages / Benefits of Stone Mastic Asphalt


  • Excellent skid resistance
  • Better visibility
  • Minimized aquaplaning


  • Long term approved mix design
  • Controlled mix production
  • Easy to lay and compact


  • Sustainable use of financial fund
  • Less maintenance costs
  • The mix with spare capacity


  • Beste Verformungsbeständigkeit
  • Überzeugende Leistungen gegen Verschleiß und Abnutzung
  • Undurchlässig durch geringer Luftporengehalt
  • Besonders langlebig


  • For Highways
  • For Motorways
  • For National roads
  • For Cityroads
  • For Airports
  • For industrialareas

Our knowledge, for your benefit!

For more information, you can contact us directly via the contact form.

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