Rehabilitation Overlays with Gilsonite Asphalt

When a road reaches the end of its surface life, an overlay restores ride quality and structure. Gilsonite can make the overlay last longer.

Before overlay

• Mill rutted or cracked surface
• Repair base failures
• Seal cracks
• Apply tack coat

Overlay design

• Use gilsonite-modified mix in the surface layer for rut resistance
• Choose thickness based on traffic and condition

Reflective cracking

Very stiff overlays can reflect underlying cracks. Use interlayers or adequate thickness where cracking is severe.

Benefits

A durable overlay with longer life before the next intervention.

Overlay design checklist

Managing reflective cracking

Use crack sealing, interlayers or thicker overlays where existing cracking is severe.

See asphalt modifier gilsonite and pavement preservation.