LIGHTLY TRAFFICKED ROADS--FRANCE

THE POTENTIAL USE OF VARIOUS TYPES OF SOFT MATERIALS FOR THE CONSTRUCTION OF LIGHTLY TRAFFICKED ROADS IS DESCRIBED. THE GRADING AND METHOD OF COMPACTION OF VOLCANIC SCORIAE, AND THE TYPE OF PAVEMENT FOR WHICH IT COULD BE UTILIZED, IS INDICATED. USE CAN BE MADE OF THE POZZOLANIC PROPERTIES OF SOME OF THESE SCORIAE. DETAILS ARE GIVEN OF THE USE OF SHELLS MIXED WITH SAND, AND THE USE OF CORALS. THE TREATMENT OF CHALK WITH LARGE PERCENTAGES OF SLAG, RENDERS IT NONSUSCEPTIBLE TO FROST. METHODS OF TREATMENT ARE DESCRIBED WHICH ENABLE THEM TO BE USED AS BASE COURSES FOR LIGHTLY TRAFFICKED ROADS. ATTENTION IS DRAWN TO THE USE OF SILTS IN THE ROAD BED OF RURAL HIGHWAYS. SUCCESSIVE TREATMENTS OF SUCH MATERIAL WITH LIME AND CEMENT IMPARTS FROST RESISTANCE. THE PERFORMANCE OF LOW-COST ROADS UNDER TRAFFIC AND THE STRENGTHENING OF PAVEMENTS IN TROPICAL AND SUBTROPICAL CLIMATES WAS INVESTIGATED. STUDY OF THE PROBLEMS OF SEMI-RIGID PAVEMENTS WITH UPPER COURSE BINDERS MUST TAKE INTO ACCOUNT POISSON'S COEFFICIENT. THE INTERACTION OF THE CHARACTERISTICS OF UPPER COURSES WITH BINDERS AND LOWER COURSES WITHOUT BINDERS MUST BE TAKEN INTO CONSIDERATION BY DESIGNERS. A METHOD OF ANALYZING THE BEHAVIOR OF PAVEMENTS IS PRESENTED. IT IS BASED ON THE PRODUCT OF THE RADIUS OF CURVATURE MUTLIPLIED BY THE DEFLECTION. AN APPARATUS IS DESCRIBED WHICH MEASURES BOTH THE DEFLECTION AND THE CURVATURE. A STUDY OF THE ROAD SYSTEMS IN WEST AFRICA AND MADAGASCAR IS REPORTED AND THE OBSERVATIONS MADE ARE RECORDED. THE INFLUENCE OF SECONDARY ROADS ON THE NATIONAL REVENUE IS REVIEWED. SUGGESTIONS ARE MADE FOR A MODEL OF THE BEHAVIOR OF THE PRODUCER-CONSUMER, AND THE APPLICATION OF THE MODEL IS DESCRIBED. OBSERVATIONS ARE MADE ON THE ASPECT OF INITIAL TRAFFIC IN A DEVELOPING AREA.

  • Supplemental Notes:
    • QUESTION VII ANS-5
  • Authors:
    • Joneaux, R
    • Bonnot, J
    • Cambournac, M
    • Lepetit, P
    • Remillon, A
  • Publication Date: 1971

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Filing Info

  • Accession Number: 00233469
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 11 1974 12:00AM