THE POTENTIAL LEACHABILITY FROM NATURAL ROAD CONSTRUCTION

Leaching characteristics are used for the evaluation of waste materials in road construction. Few leaching tests have been performed on natural rock materials, which implies that there is a lack of data to be used in comparison with waste materials. In order to form a basis for comparison of the leachability, 9 natural road construction materials in Sweden were investigated using the availability test NT ENVIR 003. Results show that the leachable amounts of heavy metals and sulfur generally are very small, but under oxidizing conditions the solubility of sulfide bound elements increases notably. Vanadium and chromium are probably present as ionic substitutes for other elements in mineral lattices and show very low leachability. The leachable amounts of some heavy elements are higher in the rock materials and gravels than in the blast furnace slags.

  • Availability:
  • Corporate Authors:

    Elsevier

    Radarweg 29
    Amsterdam,   Netherlands  1043 NX
  • Authors:
    • Tossavainen, M
    • Forssberg, E
  • Publication Date: 1999-10

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00798723
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 13 2000 12:00AM