GPS controlled graders deliver a smooth surface

Birse has used two machine control systems on the A14 project in the UK, one GPS-controlled to provide excavators with a +/-30mm accuracy and a second system which used a Trimble UTS as control on a grader to achieve +/- 5mm - well within the Highway Agency's sub-base tolerance of +10/-30mm. This meant that when it came to the asphalt surface, Birse agreed a thickness and Lafarge, the blacktop contractor, let the paving machine run instead of the operators constantly making manual adjustments. At the end of
July 12, 2012 Read time: 1 min
1486 Birse has used two machine control systems on the A14 project in the UK, one GPS-controlled to provide excavators with a +/-30mm accuracy and a second system which used a 2122 Trimble UTS as control on a grader to achieve +/- 5mm - well within the Highway Agency's sub-base tolerance of +10/-30mm. This meant that when it came to the asphalt surface, Birse agreed a thickness and 3180 Lafarge, the blacktop contractor, let the paving machine run instead of the operators constantly making manual adjustments. At the end of the job, one of Birse's engineers looked at a 1km section of type 1 sub-base in detail. The average surface deviation on this tested carriageway was zero and local users of the A14 have even been phoning and emailing their approval of the smooth finish.
Connected Construction

For more information on companies in this article

Related Content

  • Versatile small construction equipment
    February 9, 2012
    Smaller construction equipment offers versatile options, particularly on highway repair and maintenance projects. Patrick Smith reports. Visitors to any highway construction site across the world will see a sizeable amount of utility equipment in action carrying out a variety of tasks. Indeed, because of its smaller, more compact size, such multi-task equipment is essential when repair and maintenance projects are being carried out, particularly in urban areas where space may be limited.
    Read More
  • Bitumen technology reduces maintenance costs
    April 12, 2023
    Looming net zero deadlines, and impetus from the private sector are accelerating the take up of carbon-saving technologies
    Read More
  • Two German autobahns benefit from new Wirtgen concrete slipforming technology
    November 15, 2013
    Two important routes in Germany, the A9 and A6 autobahn highways, have benefited from the use of the latest Wirtgen slipforming machines. The A9 is a particularly important route in Germany as this 529km link connects capital Berlin with the southern city of Munich, running through Brandenburg, Saxony-Anhalt, Saxony, Thuringia and Bavaria.
    Read More
  • Producing recycled materials at an airport for surface use
    October 1, 2018
    Recycling of materials has been carried out at Cologne/Bonn Airport in a move to boost efficiency Using the Wirtgen KMA 220 mobile cold recycling mixing plant allows road construction materials to be recycled or upgraded onsite and avoids the need for numerous transport trips. The system is also economical, as became clear from a job at Cologne/Bonn airport at the end of 2017. There the plant, located immediately next to the job site, produced around 11,000tonnes of materials for a hydraulically bound ba
    Read More

Highlighted Content