The Ryfylke tunnel, Norway

2013 saw the start of a major construction project – the Ryfylke tunnel, which opened to traffic just in time for the start of the new decade. This is the longest and deepest underground road tunnel in the world – 292 m below sea level – and it forms part of what is known as the Ryfast project.

The other two tunnels in the project – Hundvåg and Eiganes – will open to traffic later this year.

The Ryfylke tunnel is 14.3 km long and connects the two municipalities of Strand and Stavanger in southern Norway. Traffic runs in two separate tunnels, one in each direction, with a maximum gradient of 7 %. 1.2 million m3 of rock was excavated during the course of the work.

The pavement in all three tunnels has a thickness of 22 cm, of which the surface course comprises 4.5 cm. To guarantee a road surface that is both durable and flexible, the contractor Velde used a polymer modified binder – Nypol 82 – in the surface course. The total surface area asphalted in the Ryfast project is more than 350,000 m2.

Sustainable Development

Sustainable governance

Eurobitume is carrying out longterm work to help the organisation’s members to prepare for upcoming challenges as the conditions change in the market. One example is the decision to form the Bitumen Sustainability Steering Group (BSSG), chaired by Carl Robertus from Nynas.

Noted

Nynas exits US sanctions

The US Treasury Department’s Office of Foreign Asset Control (OFAC) announced today that Nynas is no longer being blocked pursuant to the Venezuela Sanctions Regulations. As a result of a corporate restructuring of the ownership of Nynas AB sanctions are lifted, and US persons and companies no longer require an authorization from OFAC to engage in transactions or activities with Nynas AB. As a consequence, general license GL 13E is removed.

Sustainable Development

Asphalt – a circular material

The reuse of asphalt is one area where the bitumen and asphalt industries contribute to a more sustainable utilisation of our natural resources.

Projects

Rising to the challenge

Playing a key part of the supply chain for a huge road project in England, Nynas delivered more than 20,000 tons of bitumen in time-critical batches, helping to complete the work well ahead of schedule.

Noted

The score for quality is lower

Roberto Crotti, World Economic Forum (WEF), on the state of the European road network.

Interview on the link between roads and competitiveness


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