Structurally sound asphalt roadways with significant cracking have traditionally been a maintenance challenge. Reflective cracking occurs quickly with ordinary surface treatments making maintenance an ongoing need. Removal and replacement of the roadway can be a successful but costly alternative.
PolyChip Stress Absorbing Membrane offers a cost effective solution for such surfaces. PolyChip is a unique combination of recycled tire rubber, polymer modified asphalt and coated aggregate which provides a waterproof membrane over the pavement surface.
The process begins with a thorough cleaning of the roadway surface utilizing high- speed air blowers and/or mechanical sweepers. Pavement cracks ¼ inch wide or larger are then filled with a hot-applied rubberized crack sealer. PolyChip oil containing recycled tire rubber and polymers is heated and applied to the surface from a distributor truck. Immediately following the oil application, aggregate is evenly placed using a chip spreader. A rubber tire pneumatic roller is used to help compact the aggregate in place. After curing, loose stones are swept from the pavement surface. The final step is the application of an asphalt emulsion known as “fog seal”. Fog sealing provides an attractive appearance while improving surface cohesion.
The PolyChip system remains flexible at cold temperatures and maintains integrity at high temperatures to help reduce reflective cracking. The finished surface requires very little maintenance and is extremely durable.
PolyChip off the Ol’ Block
Want to see our Sunland crews in action? Check out our PolyChip overview video. Contact our PolyChip experts today for a free estimate.