IN SITU VERFICATION OF SPECIFICATIONS PROPOSED BY VIALIDAD NACIONAL FOR CALCAREOUS SOIL-SAND-BITUMEN PAVING MIXTURES

VERIFICACION EN OBRA DEL PROYECTO DE ESPECIFICACIONES DE SUELO CALCAREO-ARENA-ASFALTO DE VIALIDAD NACIONAL

Control problems in bitumen-sand-calcareous soil mixtures for pavements are studied for a large number of materials, following the approach used in a previous publication by Ruiz and coworkers. An in-situ verification is made by means of the proposed specifications, which apply a statistical criterion to the thickness, compaction, and mechanical properties of the mixture, using the whole set of values obtained in laboratory tests and from road samples. As to the thickness, an exponential increase in penalty is used instead of a rejection criterion when predetermined minimum thicknesses are not attained. Different grades are types of compaction, and the test temperatures for them were studied in the laboratory. /TRRL/

  • Authors:
    • Lockhart, J M
    • Santangelo, R T
  • Publication Date: 1971

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Filing Info

  • Accession Number: 00082772
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Conf Paper
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1975 12:00AM