EVALUATION OF CONCRETE CHARACTERISTICS BY MEANS OF REDUCED VARIABLES

EVALUATION DES PROPRIETES DU BETON PAR DES VARIABLES REDUITES

THE RELATION BETWEEN THE MECHANICAL STRENGTH, SOUND VELOCITY AND BULK DENSITY OF CONCRETE CAN BE EXPRESSED BY A DIMENSIONLESS NUMBER BU (NAMED AFTER PROFESSOR BUKOUSKI). TESTS ON SMALL SAMPLES SHOW THAT BU HAS THE SAME VALUE FOR CONCRETES WITH THE SAME MIX DESIGN INDEPENDENTLY OF AGE AND HARDENING CONDITIONS. THE NUMBER BU DEPENDS ON: (1) LENGTHS (LENGTH OF SAMPLE AND WAVE LENGTH); (2) MACRO-STRUCTURE PARAMETERS WHICH REPRESENT THE RANDOM DISTRIBUTION OF WEAK ZONES IN THE MATERIAL AND INFLUENCES ONLY THE STRENGTH. THIS REDUCED VARIABLE IS NECESSARY FOR THE PROBABILITY EVALUATION OF STRENGTH AND CAN BE CALCULATED WITH THE THEORY OF POROUS MEDIA.

Language

  • French

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Filing Info

  • Accession Number: 01297512
  • 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 6:23AM