Customer reference: Dustex for dust suppression of gravel roads

The Norwegian Public Roads Administration (Statens vegvesen) is responsible for the planning, construction and operation of national and county road networks in Norway. It has been using Dustex® for dust suppression of gravel roads for decades. Here is a summary of their experience and conclusions:*

• Dust binding effect increases over time: Dustex binds well in the gravel matrix and winters well. This results in a better gravel course, including in bare ground periods during milder winters.
• The gravel in the road binds together effectively, and gravel loss to the environment through dusting and leaching is only minor.
• The road achieves a solid surface with limited need for maintenance grading throughout the summer.
• Problems associated with softening, poor accessibility and damage to the gravel course during the frost heaving period are reduced.
• Environmentally friendly material
• Gentle on equipment, non-corrosive
• Durable in prolonged periods of precipitation, limited leaching.
• Build-up over time ensures a strong gravel course surface suitable as a base course should the road be asphalted.

*source: ‘Dustex Maintenance and upgrading of gravel roads. Dust binding gravel road surfaces – stabilisation of the base course, Statens vegvesen 2006’.