INFORMATION DAYS, BITUMEN AND BITUMINOUS MIXTURES, PARIS, 16-17TH NOVEMBER 1971

JOURNEES D'INFORMATION, BITUMES ET ENROBES BITUMINEUX - PARIS - 16-17 NOVEMBRE 1971

The conference which took place on 16th and 17th November, 1971, was organized by the LCPC to facilitate an exchange of information between the various laboratories dealing with bitumen and bituminous mixtures. The themes discussed can be classified into three categories: (1) nature and physico-mechanical characteristics of bitumen. Details were given of the manufacture of bitumen, physico-mechanical characteristics, evolution in time, e.g. The problem of ageing. (2) mechanical properties of bituminous mixtures. The properties discussed are those for which the usual duriez and marshall tests give insufficient results, but which must be known if better formulae for bituminous mixtures are to be established or accurate pavement design is to be ensured. The properties are: modulus of deformation and failure characteristics, fatigue behaviour, resistance to tracking (this problem is being studied by the OECD working group c7, 1972 programme). Test methods used in various laboratories are described, and an attempt is made to establish a relation between laboratory test results and in-situ behaviour. (3) mix design of bituminous mixtures. This theme summarises the previous results obtained, and attempts to define a desirable evolution in bitumen and bituminous mixtures formulaes used in surfacings and road bases, taking into account the ever increasing traffic volume. For individual abstracts, see IRRD abstracts nos. 101125 to 101130. /TRRL/

  • Corporate Authors:

    Central and Regional Labs of Bridges & Highways,Fr

    58 Boulevard Lefebvre
    75732 Paris Cedex 15,   France 
  • Publication Date: 1972

Language

  • French

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 453 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00125493
  • Record Type: Publication
  • Source Agency: Central and Regional Labs of Bridges & Highways,Fr
  • Report/Paper Numbers: Conf Paper
  • Files: ITRD, TRIS
  • Created Date: Apr 7 1976 12:00AM