Testing recycled cold mix asphalt

Cold mix road repair material containing 100% recycled asphalt has been laid on rural routes in northWales, UK, by the contractor Hogan Construction.Work was carried out to demonstrate that structural integrity can be restored to a failing carriageway without making use of primary aggregates or hot bitumen.
March 15, 2012 Read time: 1 min
Caterpillar rollers have been used to compact the surface course over base course designed with HiMA technology, at Port of Napier’s Kirkpatrick Wharf in New Zealand, which will deal with rutting problems on the previous surface
Cold mix road repair material containing 100% recycled asphalt has been laid on rural routes in north Wales, UK, by the contractor Hogan Construction (part of 3943 Hogan Group).Work was carried out to demonstrate that structural integrity can be restored to a failing carriageway without making use of primary aggregates or hot bitumen.

Over 500tonnes of recycled material featuring a Nymuls CP50 emulsion – supplied by 294 Nynas – was laid as a binder course on three sites this summer on behalf of local authorities in Gwynedd and Anglesey.

The cold mix material was laid and compacted at an ambient temperature before being overlaid with a surface dressing. Hogan’s Director of Business Development David Morris said: “We wanted to lay an asphalt made up of 100% recycled material because we saw the potential to reduce the use of primary aggregates in the highway maintenance process. The clients are perfectly happy with how the material has performed so far.”
Asphalt milling, paving & compaction

For more information on companies in this article

Related Content

  • New asphalt pavers deliver better surface quality
    February 13, 2012
    Progressive paving improvements are offering better surface quality
    Read More
  • Four more Jetpatcher units for Mexico
    September 13, 2023
    The Jetpatcher kits include all the proprietary control systems as well as the company’s Spreader Box attachment for localised sheet patching applications.
    Read More
  • Dynapac develops asphalt remixing system
    September 30, 2015
    Atlas Copco is now introducing its Dynapac Remixer, which is designed to deliver a high quality, homogeneous asphalt mix The unit has been designed to fit inside the hopper of a paver and can help boost mat quality. Research shows that thermal and mechanical segregation of the asphalt mix can trigger problems in the mat including unevenness and irregular surfaces, a larger void content and reduced compaction. These issues can cause long-term problems and will shorten the service life of the paved surf
    Read More
  • Astec develops innovative asphalt plant with additional recycling capability
    June 23, 2015
    Astec’s headline RAP plant can use up to 65% RAP content As it does for the 50% double barrel system aggregate dryer/drum mixer model, Astec is guaranteeing that its customers will get the increased percentage. The unit runs at 181-360tonnes/hour production (200-400UStons/hour). Astec, based in Chattanooga, Tennessee, manufactures all of their state-of-the-art Hot Mix Asphalt plants in the US. They introduced the first double barrel plant in 1989, according to executive vice president Steven Claude, during
    Read More

Highlighted Content