This set of photos presents rubblization with concrete overlays. Although rubblized concrete is almost always overlaid with asphalt, Antigo has completed several highway projects, and more commonly airport projects, where the overlay was constructed with concrete pavement. An interlayer of crushed stone is usually placed on the rubblized concrete for crown correction and to provide a very uniform surface that can be trimmed prior to the concrete paving operation.
Guide to Concrete Overlays
This guide presents basic principles needed by pavement engineers for the design and construction of concrete overlays on existing asphalt, composite, and concrete pavements. See pages 105 and 107 for information on rubblization of concrete pavement prior to a concrete overlay.