THE ELECTRIC CAR AND THE FUTURE CARBONIFEROUS RED SHALES, GRAVEL, SLAG, GRANULATED SLAG AND SPECIFICATIONS FOR THE USE OF NON-CONVENTIONAL MATERIALS IN PAVEMENT IMPROVED SUBGRADES

ELEKTRISCHE AUTO EN DE TOEKOMST

Although the prime motive for the development of electrically driven road vehicles may have changed during the last decade from environmental aspects to independence of crude oil supplies, this development itself has not lost its urgency. Nearly all prototypes built during this decade were plagued by many small troubles: the designers tend to give too much attention to the new problems of electric propulsion and to neglect the essential detail development. Until new kinds of battery are able to offer 10 to 30 times (not: per cent) bigger energy and power densities, electric passenger cars will be restricted to speeds of the order to 50 or 60 miles per hour and to short distances (say 60 or 80 miles). They could still satisfy many commuters' needs. Apart from better design details acceptable crash-safety should be required. Many prototypes do not offer the most elementary safety. Also, standardisation of battery packs will be essential for commercial success. (TRRL) Sensitivity to frost was determined by means of frost tests to evaluate the materials durability, their brittleness, stability in the presence of water, and their content in soluble substances was also assessed. Results of this study show that neither red shale nor natural gravel nor granulated slag are ideal materials for improved subgrades. Each has a defect(s) which limit(s) its possibility of utilization. However in some specific conditions described

  • Availability:
  • Corporate Authors:

    Noord Nederlandse Drukkerij

    Eendrachtstraat 2, Postbus 6
    Meppel,   Netherlands 
  • Authors:
    • Koumans, W A
  • Publication Date: 1980-2

Language

  • Dutch

Media Info

  • Features: Figures;
  • Pagination: p. 119-122
  • Serial:
    • Elektrotechniek
    • Volume: 58
    • Issue Number: 2
    • Publisher: NV Noord Nederlandse Drukkerij
    • ISSN: 0013-4627

Subject/Index Terms

Filing Info

  • Accession Number: 00317298
  • Record Type: Publication
  • Source Agency: Institute for Road Safety Research, SWOV
  • Files: ITRD, TRIS
  • Created Date: Feb 6 1981 12:00AM