Thin asphalt pavement (Nova-Chip)

A bonded wearing course (BWC) is a gap graded, ultra-thin hot-mix asphalt (HMA) mixture applied over a thick polymer modified asphalt emulsion membrane. The emulsion membrane seals the existing surface and produces high binder content at the interface of the existing roadway surface and the gap-graded mix all in one pass. The gap-graded HMA provides an open surface texture to allow water to flow through the surface. A BWC can be applied and opened to traffic quickly, usually within 15 minutes, without sanding or tracking. Bonded wearing courses are primarily used in high traffic areas as a surface treatment over HMA and PCC surfaces. It can be placed over structurally sound pavements as a maintenance treatment, and may also be used in new construction and rehabilitation projects as the final wearing course.
Our Nova-paver is enabling us to apply 15 to 25mm of thin pavement in a single pass.