A new machine which has been developed by the Cement and Concrete Association to groove hardened concrete roads and airport runways is described. The machine, which is intended primarily for highway maintenance, is self propelled, works in one-lane width and is self contained, requiring no external services during operation. A effective grooving width of 4 M is given by two cutting heads, each consisting of a system of Tungsten-Carbide tipped flailes cutting 20 grooves, irregularly spaced at centres averaging 32 Mm. No coolant is required for the cutting process and an extraction system is incorporated to suck dust and particles of concrete into a standard removable container mounted at the rear. The machine can be driven between sites as a conventional heavy vehicle at speeds up to 30 MPH. The system provides a durable, skidding resistant surface with good surface water drainage and escape routes for water under tires, reducing the amount of spray thrown up. The first full-scale proving trials of a prototype were carried out on a length of runway at Heathrow Airport. The British Airports Authority will use the grooved area to measure improvements in skidding resistance. /TRRL/

  • Corporate Authors:

    The Quarry Managers Journal Limited

    62-64 Baker Street
    London W1M 2BN,   England 
  • Publication Date: 1973-12


  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00261517
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Nov 12 1974 12:00AM