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Triple layer dust suppression treatment

Triple layer dust suppression is a technique designed to reduce inconvenience caused by dust and mud on country roads, cycle paths, embankments or access roads to agritourism facilities, where the use of traditional bituminous conglomerates is not permitted due to architectural, environmental or landscape restrictions.

What is triple layer dust suppression?

Triple layer dust suppression is a technique used to improve the surface characteristics of unpaved roads that generally have low traffic volumes, by reducing dust and mud. This method involves applying three layers of bituminous binder and selected crushed stone to the road surface, with the aim of:

  • reduce dust and mud;
  • make roads safe to use;
  • waterproof the road surface.

Application procedure and materials

Dust suppression must be carried out on a suitably levelled and compacted foundation layer, in an unbound granular mixture or on lime and/or cement stabilised soil.

Triple layer dust suppression treatment utilises:

  • bituminous binders to ensure the adhesion of the aggregates, the resistance of the paving and effective waterproofing;
  • selected aggregates to improve wear resistance and help integrate the paving into the landscape.

Triple layer dust suppression application

Selected aggregates for landscape integration

When required, Asfalti Piovese selects aggregates not only for their properties but also according to their colour and/or geographical origin, with the aim of blending in with the surrounding environment.

Neutral emulsions

In areas subject to particular landscape or architectural restrictions, we use neutral emulsions as an alternative to the traditional bituminous binder.

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Triple layer treatment advantages

Improved road surface treatment

Triple layer treatment improves the road surface smoothness, making driving more comfortable and safer. An even surface reduces vehicle wear and improves driving.

Road surface waterproofing

Waterproofing is a key benefit of triple layer dust suppression, preventing water penetration.

Increased grip

The treatment significantly increases the grip on the road surface, reducing the risk of skidding, and improving vehicle safety, especially during wet weather.

Elasticity and adaptation to settlement

Triple layer dust suppression provides elasticity to paving, allowing the surface to adapt to ground settlement, preserving its structural integrity.