Newly constructed low-noise asphalt surface fails

Questions are being asked over the construction of a new section of the A1 autobahn in Germany. The highway stretch is being scrutinised due to surface failures and lies close to the city of Bremen but has been open for less than three months.
May 15, 2012 Read time: 1 min
Questions are being asked over the construction of a new section of the A1 autobahn in Germany.

The highway stretch is being scrutinised due to surface failures and lies close to the city of Bremen but has been open for less than three months.

The road carries around 70,000 vehicles/day and its construction was intended to reduce congestion between the port cities of Hamburg and Bremen. Numerous potholes are reported to have appeared in the surface of the highway. Given the recent severe weather, failures of older road surfaces are expected but these problems should not occur on links that have been so recently completed.

The investigations will focus on how water penetration into joints could have already caused the freeze-thaw process to break up the running surface or whether other problems such as material segregation or incorrect mix design could have been factors. The low-noise asphalt surface is crumbling at various points along the 73km section recently opened.

Asphalt milling, paving & compaction Highway & Network Management

Related Content

  • Zipping up road lanes – with Barrier Systems
    September 10, 2018
    QMB has a Lindsay Road Zipper on duty near Montreal. World Highways deputy editor David Arminas climbed aboard As vice president of Canadian barrier specialist QMB, based in Laval, Quebec, Marc-Andre Seguin is sanguine about the future for moveable barriers. On the one hand, it looks good. The oft-stated advantage of moveable barriers is that the systems are cheaper to install than adding a lane or two to a highway or bridge. Directional changes to lanes can boost volume on a road without disrupting tra
    Read More
  • Shell Bitumen’s new technology cuts air-polluting emissions by 40%
    May 15, 2019
    Shell Bitumen has developed molecular technology that cuts 40% of air-polluting emissions -Kristina Smith reports Shell Bitumen is launching a new technology which drastically reduces the amount of harmful air pollutants produced when asphalt mixes are manufactured and laid on the roads. Called Shell Bitumen FreshAir, it reduces six of the seven pollutants produced by at least 40%. The seventh, ozone, is produced in too small an amount to measure changes. “The World Health Organisation has said that 90%
    Read More
  • Chinese firm wins highways expansion project to decongest Nairobi
    January 5, 2017
    A Chinese contractor is carrying out a major road project intended to cut congestion in Kenyan capital Nairobi – Shem Oirere writes Chinese contractor China Wu Yi has won a US$163 million contract for the reconstruction and expansion of a 25km highway leading out of Kenya’s capital Nairobi with financing from the World Bank. The contract was awarded by the country’s National Highways Authority (KeNHA), a state-owned road agency responsible for the management, development, rehabilitation and maintenance of i
    Read More
  • Contracts are about to be signed for the Fehmarnbelt Fixed Link
    March 13, 2015
    Nearly eight years after Denmark and Germany agreed to construct a major undersea road and rail tunnel, the first contracts are about to be signed. David Arminas reports. Construction is due to start later this year on one of Europe’s most ambitious, as well as the world’s longest, road and rail tunnels, the 17.6km Fehmarnbelt Fixed Link between Germany and Denmark. Fehmarnbelt is expected to cost around US$7.5 billion and be five times the length of the Øresund tunnel between the Danish capital Copenhagen
    Read More

Highlighted Content