REUSE OF TAR-CONTAINING ASPHALT: ENVIRONMENTAL ASPECTS

HERGEBRUIK VAN TEERHOUDEND ASFALT: MILIEU-ASPECTEN

This article discusses the leaching of polycyclic aromatic hydrocarbons (PAH) from tar-containing asphalt that is reused. A test, based on Dutch standard NEN 7345, for assessing the leaching of PAH is briefly described. The addition of bitumen emulsion to cement-bound asphalt granulate results in a significant reduction of PAH leaching. The effectiveness of this addition depends, however, on the quality of the mixing and the compaction. An example of such a mix is the Emulscement product: cement and bitumen emulsion are applied as binders in combination for the binding of asphalt granulates. Emulscement appears to be a good solution for cold recycling of tar-containing asphalt granulate. Dutch specifications for the PAH content in building materials are discussed with respect to the leaching of PAH from tar-containing asphalt granulate.

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  • Corporate Authors:

    CENTRUM VOOR REGELGEVING EN ONDERZOEK IN DE GROND-, WATER- EN WEGENBOUW EN DE VERKEERSTECHNIEK (CROW)

    GALVANISTRAAT 1
    EDE,   Netherlands  6716 AE
  • Authors:
    • ONSTENK, HJCM
  • Publication Date: 1995-6

Language

  • Dutch

Media Info

  • Pagination: p. 12-3
  • Serial:
    • WEGEN
    • Volume: 69
    • Issue Number: 6
    • Publisher: CROW
    • ISSN: 0043-2067

Subject/Index Terms

Filing Info

  • Accession Number: 00712243
  • Record Type: Publication
  • Source Agency: DIENST WEG- EN WATERBOUWKUNDE (DWW)
  • Files: ITRD
  • Created Date: Oct 24 1995 12:00AM