Precautionary Salting Trials on the M62 at Goole

This report presents the findings of a 2008 study looking at precautionary salt treatments, on a three-lane section of the M62 motorway, near Goole, United Kingdom. The two salting trials were undertaken to determine the residual salt levels required to prevent ice formation on roads and how the levels vary after spreading. Trial 1 used untreated dry 6.3mm rock salt and Trial 2 used dry 6.3mm rock salt treated with an additive based on an agricultural by-product. The de-icer was spread with the trial site open to traffic. Two hours after the salt spread, the site was closed to traffic and the residual salt was collected from four 1-meter-long strips. After the salt recovery, the site was reopened to traffic until 25 hours after spreading. The site was then again closed to traffic and the residual salt was collected from another four strips. The authors estimate that 14.6g/m² of the untreated salt and 17.0g/m² of the treated salt was spread to Lanes 1 to 3. After 2 hours of traffic, the salt loss in these lanes was estimated to be 59 per cent for the untreated salt and 51 per cent for the treated salt. After 25 hours, the loss of salt was estimated to be 73 per cent for both de-icers. The authors conclude by noting that most of the residual salt that was present 25 hours after spreading was trapped in the surface voids of the negatively textured surfacing.

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  • Corporate Authors:

    TRL

    Crowthorne House, Nine Mile Ride
    Wokingham, Berkshire  United Kingdom  RG40 3GA
  • Authors:
    • Jordan, R W
    • Evans, M G
  • Publication Date: 2011-12

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01362706
  • Record Type: Publication
  • ISBN: 9781846089909
  • Report/Paper Numbers: PPR392
  • Files: TRIS
  • Created Date: Feb 16 2012 10:14AM