Spray and chip surfacing is a technique involving the spraying of bitumen followed by a single layer of washed stone aggregate chippings.
It is mainly used as an inexpensive alternative to surfacing a primed granular base or re-surfacing of an existing road. It can also be used as a wearing course on top of an asphalt concrete base course to provide surface texture and increase skid resistance.
- It’s in built computer ensures exact application of binder and aggregates by monitoring the pump output and vehicle speed ratios
- As the aggregate is applied immediately after the binder there are no problems with adhesion of the aggregate to the binder giving you high quality work
- Its combined spray and chip operation gives increased output, efficiency and quality leading to lower costs per m2
- Costs of establishment to sites are minimal as it drives to site removing the need for establishing a sprayer, chip spreader and tippers
- It is operated by the driver who has full control of all operations from the front cab
- Equipped with a printer the machine can print the days’ work summary including the bitumen application rate, aggregate rate and area covered