Cold mixing on the go

A successful collaboration between Nynas and volumetric concrete mixer manufacturer Armcon has resulted in a mobile patching machine that can produce cold mix asphalt for repairs and maintenance.

After two years of development, Armcon has produced a version of its market leading mixing equipment that is designed specifically for producing cold mix materials made using road plainings and bitumen emulsion from Nynas.

Barnsley Metropolitan Borough Council in South Yorkshire is the first local authority in the UK to use the equipment. Key advantages include the fact that Barnsley MBC are in control of production to meet demand, the material is easier to install and work with on site and can also be stored for extended periods.

This gives the local authority a lot more flexibility compared with using hot mixes enabling them to manage programmes, which in turn generates cost savings to the business. The Armcon machine can produce cold mix materials on a continuous basis, which can then be stockpiled and used by different gangs as and when they need it. As a result, the Barnsley maintenance team is entirely self-sufficient and doesn’t have to rely on deliveries from external suppliers.

Barnsley MBC is currently using the cold mix for footway repairs and plans to use it for carriageway repairs in the future.

Projects

Sokndal, Norway

The recently opened Motorcenter Norway offers everything from go-carting to drag racing. Nynas was involved in the project by supplying Nypol HF 105, a polymer-modified bitumen ideal for pavements that are subjected to high stresses.

Projects

Gothenburg, Sweden

The Älvsborg Bridge spans the estuary of the Göta Älv river at the entrance to Gothenburg and the biggest port in Scandinavia. The bridge, officially opened in 1966, has a total length of 930 m and a suspended span of 418 m. To guarantee the bridge's functionality and extend its useful life, extensive maintenance work has been under way since 2019, the third and final stage being completed this summer.

Talking point

Road infrastructure in North-Western Europe

Even though many successful road projects have been completed in Western Europe in recent years, the durability and availability of the road infrastructure needs to be improved.

Interview

Paving the way for asphalt 4.0

Digitalisation is making inroads in the asphalt industry. The latest Eurasphalt & Eurobitume (E&E) Congress was held virtually in June. It was a success, but the next E&E event will allow industry stakeholders to meet face-to-face.

Noted

All the key players are working together to achieve the best possible result.

Katri Eskola, Specialist Road Maintenance Finnish Transport Infrastructure Agency

Talking point: The COVID-19 pandemic


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