DYNAMIC CREEP TEST IN THE PREPARATION OF BITUMINOUS MIXTURES AND PAVEMENT DESIGN

L'ESSAI DE FLUAGE DYNAMIQUE DANS LA FORMATION DES ENROBES ET LE DIMENSIONNEMENT DES CHAUSSEES

AFTER A DESCRIPTION OF THE TEST AND OF THE METHOD OF PREPARING SAMPLES, A STUDY IS CONDUCTED OF THE LAW OF THE DYNAMIC CREEP OF A GRAVEL-BITUMEN MIXTURE, AND A METHOD OF FORECASTING TRACKING IN ROADBASES IS PROPOSED. ATTENTION IS DRAWN TO THE FACT THAT: (1) CREEP INCREASES WITH TEMPERATURE AND WITH A DECREASE OF FREQUENCIES; (2) FOR THE GRAVEL-BITUMEN STUDIED, THE RATE OF CREEP DECREASES WHEN THE FINES CONTENT IS INCREASED BY 8%; (3) THE REPLACEMENT OF THE CRUSHED 3/20 FRACTION WITH ROUNDED AGGREGATE LEADS TO A LOWER RATE OF CREEP WHICH INCREASES WITH AN INCREASE IN BINDER CONTENT. FOR THE COVERING ABSTRACT, SEE IRRD ABSTRACT NO 107043.

Language

  • French

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Filing Info

  • Accession Number: 01293672
  • Record Type: Publication
  • Source Agency: Institut Francais des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)
  • Files: ITRD
  • Created Date: Nov 21 2010 4:14AM