Opened seam joints between asphalt mats cause a problem due to: 

• Aggregate loss at the interface joint
• Opened longitudinal joint
• Potential motorbike ‘stuck-in-a-rut’ hazard
• Future pothole formation likely

1. Cold seam joints 

One seam of hot asphalt laid against a second seam of cold asphalt will result in a cold joint interface where the asphalt bond will be inadequate. 

2. Compaction

Lower levels of compaction at the edge (along the seam joint) are likely, as the asphalt cools more quickly at the edge, making appropriate compaction levels more difficult. 

3. Unsealed joint

Where a sealant is not used between asphalt seams, the bond is not as strong as it could be, and a weak point is created. If left unchecked, this can result in fretted joints, potholes, and a resultant safety hazard to motorcyclists. 

Jointmaster solves this problem by  

• Sealing the joint 
• Reprofiling the surface 
• Providing a skid resistant finish  
• Recreating the safe running surface
• Protecting the rest of the asphalt joint structure
• Allowing the surface to last through to its design life
• Maintaining the value of the asset