Hanley Park, Stoke-on-Trent

Solution

Working alongside the principal contractor and many other contractors doing the wider park improvements HW&S carried out the footpath and carriageway surface dressing. The specification for the surface dressing was designed by our in houseHNss13 trained contract manager in accordance with the road note 39 guidelines. Our specialist plant

for footway surface dressing operations is designed and constructed in house based on our vast knowledge and experience in this area so it is bespoke to HW&S. It produces a calibrated and accurate application of the bitumen emulsion binder and the chippings to provide a quality assured product.

Accurate calibration and testing of the plant and its rates of spread (ROS) are critical to ensuring quality compliance and the successful delivery of a quality product. Too much application will result in bitumen ‘bleed’ through the surface and too little binder will release the chippings and create ‘bald’ areas and a similarly poor finish.

All our design work is checked against road note 39. As we work, we check our rates of spread are correct by carrying out carpet tile testing on the binder and tray testing on the chippings.

The carriageway surface dressing works at Hanley Park were laid through a combination sprayer/chipper (Chip Sealer). The Chip Sealer applies both the bitumen and chippings within the same operation and provides us with a computer-controlled calibration of both materials. This reduces the amount of plant and labour on site providing a fast safe and low impact operation.

The works were also carefully phased to ensure members of the public retained safe access around as much of the park as possible at any one time. To achieve this, there were clearly signed diversion routes whilst we resurfaced all the footpaths.