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

  • PPRS Nice 2018: maintenance moves mountains
    June 22, 2018
    Strategic maintenance was a major theme at the second Pavement Preservation and Recycling Summit in Nice, France. The world is changing, mobility is changing and so roads must change and adapt for the future.” With this brief statement, Jacques Tavernier opened the second PPRS Summit. “At the same time there is a growing awareness of poor or non-existent maintenance for highways. The question for this conference is how to adapt road maintenance in the face of this challenge,” said Tavernier, in his role as
    Read More
  • How waste plastic and soybean oil are helping our roads last longer
    April 13, 2018
    A new super-modifier is born from waste plastic in Italy and a soybean-based rejuvenator from the US spreads from its home market. By Kristina Smith The two bitumen technologies featured this month come from almost opposing sources. One emerges from the human-created plastic waste plaguing our planet, the other from a plant. However, both technologies have been created with the same aims: to increase the life of roads, saving cost and ultimately reducing the impact of road building on the planet. A coll
    Read More
  • Increased costs for new Duisburg bridge
    June 2, 2020
    Increased costs are now being anticipated for the new Duisburg bridge project.
    Read More
  • Nepal safety issues
    April 27, 2012
    The authorities in Nepal are establishing a road safety plan that is intended to reduce the country’s annual injury and fatality rates. Nepal’s Traffic Police Directorate recently announced figures showing that of the 8,503 accidents recorded in the 2010-2011 financial year, 4,914 occurred within the Kathmandu Valley. The police also said that factors causing accidents included the poor state of gravel and surfaced roads and inadequate traffic signs. Potholes are a major problem on Nepal’s road system accor
    Read More

Highlighted Content