Hessen, Germany

During 2020, slip roads to and from motorways all over the federal state of Hessen in Germany have been paved using microsurfacing to improve road grip. Because of the heavy traffic, especially in the Rhine-Main area, the contractors were forced to perform the work largely at night, which posed major challenges for both employees and machines, but also for construction materials.

With weather conditions that were very challenging at times, and narrow time windows before traffic had to be re-admitted, there were tough demands on the bitumen emulsion. Possehl Spezialbau GmbH, which specialises in the maintenance of asphalt pavements, relied on the tried and tested system from Innobit GmbH.

Even at night-time temperatures as low as 9 °C and in the pouring rain, the emulsion, with bitumen from Nynas, worked excellently. Thanks to optimal work processes at the construction site and the microsurfacing materials selected, all the slip roads could be completed within the specified time frames and above all in time to re-open the road as planned.

The choice of microsurfacing means that the slip roads can once more offer good grip, even when the road is wet. At the same time, the underlying asphalt surface is protected against additional damage, thanks to the method selected. The client has now confirmed that a major upgrading of the road network can be deferred by 8 to 10 years.

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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