HEATWURX Process

Crack Repair

Procedures for in-place repair of lineal cracks in flexible bituminous pavement using electric infrared heat.

The following is an overview of repair procedure.

Repair Procedure

1. Place HEATWURX® equipment on area to be repaired and apply heat until existing asphalt reaches a temperature of 300° F through the full depth of the section.
2. Move HEATWURX® to next position for heating overlapping previous position by a minimum of 6 inches.
3. Using in-place asphalt processor, till/mix heat treated area.
4. Apply rejuvenator along all edges of the treated area.
5. Add additional material as needed to provide proper volume and grade within the treated area.
6. Using processor, make 4 to 5 passes to achieve consistency throughout the treated area.
7. Using asphalt processor attachment, screed treated asphalt area to proper grade in preparation for compaction.
8. Compact treated area with a double wheel steel drum roller when treated area reaches a temperature range of 150° to 200° F.
9. If specified, apply sealcoat over the treated area overlapping onto undisturbed pavement by a minimum of 4 inches.

Cleanup

1. Sweep work area.
2. Remove all debris, crack seal materials, and other loose materials from site.
3. Remove traffic control measures.

Alligator Crack Repair

Procedures for in-place repair of “alligator” cracking areas in flexible bituminous pavement using electric infrared heat.

The following is an overview of repair procedure.

Repair Procedure

1. Place HEATWURX® equipment on area to be repaired and apply heat until asphalt materials reach a temperature of 300° F through the full depth of the section. Overlap HEATWURX® equipment onto existing asphalt a minimum of 6 inches.
2. Move HEATWURX® to next position for heating overlapping previous position by a minimum of 6 inches.
3. Using in-place asphalt processor, till/mix heat treated area.
4. Apply rejuvenator along all edges of the treated area.
5. Add additional material as needed to provide proper volume and grade within the treated area.
6. Using processor, make 4 to 5 passes to achieve consistency throughout the treated area.
7. Using asphalt processor attachment, screed treated asphalt area to proper grade in preparation for compaction.
8. Compact treated area with a double wheel steel drum roller when treated area reaches a temperature range of 150° to 200° F.
9. If specified, apply sealcoat over the treated area overlapping onto undisturbed pavement by a minimum of 4 inches.

Cleanup

1. Sweep work area.
2. Remove all debris, crack seal materials, and other loose materials from site.
3. Remove traffic control measures.

Pothole Repair

Procedures for in-place repair of potholes in flexible bituminous pavement using electric infrared heat.

The following is an overview of repair procedure.

Repair Procedure

1. Place new materials into pothole area to be repaired.
2. Place HEATWURX® equipment on area to be repaired and apply heat until asphalt materials reach a temperature of 300° F through the full depth of the section. Overlap HEATWURX® equipment onto existing asphalt a minimum of 12 inches.
3. Using in-place asphalt processor, till/mix heat treated area.
4. Apply rejuvenator along all edges of the treated area.
5. Add additional material as needed to provide proper volume and grade within the treated area.
6. Using processor, make 4 to 5 passes to achieve consistency throughout the treated area.
7. Using asphalt processor attachment, screed treated asphalt area to proper grade in preparation for compaction.
8. Compact treated area with a double wheel steel drum roller when treated area reaches a temperature range of 150° to 200° F.
9. If specified, apply sealcoat over the treated area overlapping onto undisturbed pavement by a minimum of 4 inches.

Cleanup

1. Sweep work area.
2. Remove all debris, crack seal materials, and other loose materials from site.
3. Remove traffic control measures.