FACTORS CONTRIBUTING TO THE VISCOSITY OF BITUMINOUS EMULSIONS

THE VISCOSITIES OF TWO BITUMINOUS EMULSIONS IN WHICH THE DISTRIBUTION OF THE SIZE OF THE SUSPENDED PARTICLES DIFFERED WAS MEASURED BY MEANS OF A COUETTE VISCOMETER. THE TEMPERATURE WAS KEPT CONSTANT AT 21 C, AND THE BITUMEN CONCENTRATION AND RATE OF SHEAR WERE VARIED. AN EXPERIMENTAL RELATIONSHIP BETWEEN RELATIVE VISCOSITY AND THE VARIABLES BITUMEN CONTENT AND RATE OF SHEAR WAS OBTAINED FOR EACH EMULSION USING THE GENERAL FORM OF THE EILERS-VAN DIJCK FORMULA 4 CUBED. ETA R EQUALS QUANTITY 1 PLUS ALPHA C SUB V/ 1 MINUS BETA C SUB V, SQUARED. WHERE C SUB V IS THE VOLUME CONCENTRATION AND ALPHA AND BETA ARE PARAMETERS DEPENDING ON THE PARTICLE SIZE DISTRIBUTION AND RATE OF SHEAR, RESPECTIVELY. THE VOLUME CONCENTRATION WAS CORRECTED TO ALLOW FOR THE VOLUME OF EMULSIFYING AGENT PRESENT. IF BETA IS RELATED TO THE RATE OF SHEAR, THE RESULTING MODIFIED FORM OF THE EILERS-VAN DIJCK FORMULA CAN BE USED TO INDICATE THE EFFECT ON RELATIVE VISCOSITY OF VARYING THE RATE OF SHEAR. THE VALUES OF 2 ALPHA OBTAINED WERE APPROXIMATELY 3, NOT 2.5 AS EXPECTED. POSSIBLE EXPLANATIONS FOR THIS ARE CONSIDERED. /AUTHOR/

  • Supplemental Notes:
    • Vol 1, No 2, PP 265-313
  • Authors:
    • Coghill, W H
    • Black, D J
  • Publication Date: 1966-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00210640
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 4 1994 12:00AM