Damage and cracks in asphalt due to fatigue (or ageing), temperature change cycles and traffic load, can be prevented by application of bitumen coated geogrids and nonwoven geotextiles between asphalt layers.

Asphalt concrete is characterized by high compression strength but low tensile resistance – application of a membrane between two asphalt layers retards reflective cracking between asphalt layers by:

• Increasing asphalt tensile strength
• Bearing a significant proportion of horizontal tension forces, thus ensuring even stress distribution over a large area

Geogrids and geotextiles are mostly applied in rehabilitating asphalt pavements with a geotechnical membrane spread over the asphalt layer to be rehabilitated, followed by application of a new upper asphalt layer.

Thirty years of experience have proven that the application of geotextiles/geogrids reduces maintenance of the asphalt road, extends maintenance intervals and produces favorable cost/benefit ratios.