REQUIREMENTS OF INERT SPREADING MATERIALS IN WINTER MAINTENANCE

The use of abrasives is one of the technologies for achieving a rough surface during winter weather. The abrasive must meet the demands related to its physical-mechanical properties and chemical composition -- mainly heavy metal content in rigid samples as well as in material leachings. Atom Absorption Spectroscopy (AAS) method was used to determine the heavy metal content. The amount of harmful elements leached from the abrasive is significant. The leaching was monitored in time intervals from two hours up to four months, with results compared to limit values of the heavy metal content in surface waters.

Language

  • German

Media Info

  • Features: Tables;
  • Pagination: p. 540-544

Subject/Index Terms

Filing Info

  • Accession Number: 00664453
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 5 1994 12:00AM