ASPHALT MIX MATERIALS AND ASPHALT ROADS WITHIN THE FRAMEWORK OF INCREASED ENVIRONMENTAL PROTECTION

ASPHALTMISCHGUT UND ASPHALTSRASSEN IM RAHMEN DES VERSTAERKTEN UMWELTSCHUTZES

Within the framework of increased environmental protection the following factors are to be considered in connection with the production of mixed materials: (1) the uncertainty of the medical effects of the materials used. (2) emission and intromission when preparing the mix. (3) an economic usage of natural raw materials and the inclusion of mineral materials of lesser quality. (4) the environmental acceptability of road construction. Concerning the medical uncertainty in a commentary in the MAK-list of 1977, the following is stated: "previous observations give no indication that the use of bitumen in different branches of construction is associated with an increased occurrence of tumors". Regarding the problem of damaging gases in the atmosphere Prof Knoesel of Hohenheim is quoted: "Protection of the environment from emissions from asphalt mixing plant can be described as 'as good as achieved'". Natural raw materials can be conserved by the use of secondary raw materials or re-use (recycling) of asphalt-materials. Using the characteristics of special construction methods it is shown that the asphalt still possesses many reserves which can be used in the interest of environmental protection. (TRRL)

  • Authors:
    • Kohler, G
  • Publication Date: 1979-10

Language

  • German

Media Info

  • Features: References; Tables;
  • Pagination: p. 14-19
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00325415
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD, TRIS
  • Created Date: Apr 15 1981 12:00AM