Description
High Performance Hot In-Place Recycling
Restore® hot in-place recycling uses an innovative emulsion specially developed for the process. The emulsion includes rejuvenator oils for bringing the aged asphalt back to life and Stylink® polymer modified asphalt for added adhesion, elasticity, temperature resistance and durability.
Hot in-place recycling is a continuous process performed with a self-contained train of equipment. With Restore, approximately 3 to 4 inches of the existing pavement surface is affected. The overall process includes:
- Pavement Preparation: Hot in-place recycling should only be done on structurally sound pavements with good base structures. Prior to recycling, any structural problems in the base should be repaired, and the existing pavement should be swept of deleterious materials.
- Heating: Heaters are used to elevate the temperature of the pavement to approximately 300°F. The heating softens the surface.
- Milling: The softened pavement is milled through successive passes of milling heads to break apart the surface and prepare it for the application of the rejuvenator emulsion.
- Applying the Restore® Emulsion: The Restore rejuvenating emulsion is metered and applied at a predetermined rate using a solution calibrated for the correct shot rate. Testing done in a Road Science™ laboratory determines the optimal amount of emulsion for each hot in-place recycling project.
- Mixing: The rejuvenator treated surface is mixed with an on-ground pugmill to coat the milled material. The result is a black, completely coated mix.
- Paving: The rejuvenated mixture is placed with a paver using a vibratory screed, resulting in a smooth surface with a corrected profile. Compacting. The newly recycled pavement is immediately compacted with conventional rollers and is ready for traffic return or for a surface treatment.
Features/Benefits
- A Cost-effective, Environmentally-friendly Solution,
- Aged, distressed pavements are replaced with smooth, durable surfaces.
- Recycling reuses existing aggregate & asphalt, reducing new raw material & hauling costs.
- The recycled pavement can be higher quality than the original.
