COMMISSION III. DOCUMENT NO 52: EQUILIBRIUM DENSITY. ITS DETERMINATION BY MEANS OF A TEST OF THE PROCTOR TYPE WITH VARIABLE ENERGY

COMISION III. DOCUMENTO 52: DENSIDAD DE EQUILIBRIO. SU DETERMINACION MEDIANTE EL ENSAYO TIPO PROCTOR CON ENERGIA VARIABLE

THE AUTHOR STRESSES THE POSSIBILITY OF USING THE EQUILIBRIUM DENSITY AS A CRITERION OF COMPACTION AND INCLUDING IT FOR FUTURE WORK CARRIED OUT FOR THE NATIONAL HIGHWAYS DIRECTORATE, IN ORDER TO SOLVE THE PROBLEMS ARISING IN THE COURSE OF CONSTRUCTION WORK. GIVEN THE LARGE NUMBER OF TESTS WHICH REQUIRE ROUTINE SURVEILLANCE, IT IS PROPOSED TO SIMPLIFY THE LABORATORY PROCEDURE WHILST GIVING THE SAME RESULT. THE AUTHOR RECALLS THE MCDOWELL METHOD AND THE MODIFICATIONS BY DR. RUIZ FOR THE DETERMINATION OF THE EQUILIBRIUM DENSITY. THE THEORY OF RUIZ AND HIS COLLABORATORS AS REGARDS THE COMPACTION OF SOIL SERVES AS A BASE FOR HIS THEORETICAL DEDUCTIONS. THE AUTHOR UNDERLINES THE LIMITATIONS OF MCDOWELL'S METHOD AS FAR AS THE APPLICATION TO THIS MEDIUM IS CONCERNED. HE GIVES FORMULAE RELATING THE DENSITY, WATER CONTENT AND MECHANICAL BEHAVIOUR, AND APPLIES THIS TO THE RESULTS OF SOIL TESTS USED BY RUIZ IN THE DEVELOPMENT OF HIS THEORY. HE CONFIRMS THE VERIFICATION OF THIS THEORY AND THAT A LINK EXISTS BETWEEN COMPACTION (NUMBER OF BLOWS NECESSARY FOR MAXIMUM DENSITY OR MCDOWELL EQUILIBRIUM DENSITY) AND THE LIQUID LIMIT OF THE SOIL MASS. FOR THE COVERING ABSTRACT, SEE IRRD ABSTRACT NO 106370, SEE ALSO IRRD ABSTRACTS NOS 106372 AND 106398-417.

  • Authors:
    • SANTANGELO, R T
  • Publication Date: 1972-12

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  • Accession Number: 01293777
  • 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 4:19AM