Warm Mix Asphalt

The Warm Mix Asphalt (WMA) technology introduces a paving alternative that delivers longevity and performance – while dramatically reducing emissions and fuel demands. Our innovative technology is designed to improve mixing, coating, workability, compaction & adhesion of asphalt mixes. WMA is a long-lasting paving solution that significantly lowers temperatures for asphalt production and application. This means major reductions in fuel consumption, energy requirements and environmental impact.

The WMA Technology is offered by us in the form of a water-free form additive, which can be introduced at the mix plant or asphalt terminal. This additive generally lowers plant mix temperatures by up to 50°C (122°F).

Warm mix asphalt – can be produced at any asphalt plant by adding 156 grams (per 1 ton of asphalt mix) of “Evotherm 3G” chemical additive to the bitumen.  Warm mix asphalt is used as main asphalt pavement for any road category (highways, 1st, 2nd, and 3rd road categories) and can be placed at any environment temperatures.
Characteristic advantages of Evotherm 3G Warm Mix Asphalt:

  • Easy to incorporate product into the asphalt production process – using existing equipment.
  • The product is an additive for production of warm asphalt mixes, with superior adhesion and cohesion properties compared to traditional hot mix asphalt.
  • The operation of the product as an adhesive additive yields both active and passive adhesion - to ensure good coating of the aggregate in the mixing process, as well as to extend the service life of the road pavement.
  • The use of the product does not lead to change of bitumen gradation.
  • Moisture is extruded from the blend with the use of the product.
  • The product composition is selected in such a way, that it meets the requirements of its exploitation in a wide spectrum of mix and aggregate types.

Other advantages, achieved with the use of “Evotherm 3G Warm Mix Asphalt”

  • Decreases the production temperature of hot mixes by at least 50°С.
  • Improves the adhesion of bitumen to the aggregate.
  • Increases cohesion and, consequently, reduces rutting.
  • Allows exclusion of cement, limestone and mineral filler.
  • Actively extrudes moisture from the aggregate and guarantees high water resistance.
  • Simplifies placement of asphalt by reducing temperature and pickup by the asphalt compactor drums.
  • Reduces thermal load on bridges.
  • Improves the plasticity of the asphalt under low temperatures.
  • The liquid additive is easy to dose at the asphalt plant.
  • Does not modify bitumen grade based on penetration, slows the aging process of bitumen.
  • No need to modify the asphalt formula, simply add the additive.
  • Aids to asphalt placement and compaction.
  • Allows placement and compaction temperatures reduction.
  • Extended haul distances to far away objects.
  • Reduces emissions of СО2, CO, SO2, NOх, and other harmful fumes.
  • Extends the paving season.
  • Allows energy savings of more than 55%.
  • Odourless.
  • Allows RAP (recycled asphalt) utilization of up to 45%.
  • The service life of a Warm mix asphalt pavement is extended by 1.5 - 2 times with compliance to the asphalt mix production process technology, as recommended by Cantat Associates Inc.

Presentation: Evotherm Warm Mix Asphalt - PowerPoint, PDF

 
   

 

Evotherm 3G Warm Mix Asphalt - Certificates, feedback and success stories

 
For more information and reports of Evotherm WMA projects in Canada, see the McAsphalt official Evotherm page at: http://www.mcasphalt.com/en/products/view/1/2

Warm Mix Asphalt

 

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