MANUFACTURE OF ACTIVATED FILLER IN THE MIXING PLANT

DOLOMITE LIMESTONE, CRUSHED TO 0/20, IS DRIED AT A TEMPERATURE OF 130-140 DEGREES C, THEN HOT-COATED WITH AN ACTIVATING BITUMEN-FAT TAR MIXTURE (MIXTURE OF FAT ACIDS WITH A HIGH MOLECULAR WEIGHT). THE MIXTURE IS THEN CRUSHED IN A BALL GRINDER. THE FILLER OBTAINED IS WATER REPELLENT IF THE ACTIVATING MIXTURE CONTENT IS SUPERIOR OR EQUAL TO 1.5 PER CENT. THE FOLLOWING TESTS ARE CARRIED OUT IN THE FACTORY ON ACTIVATED FILLERS: HOMOGENEITY TEST, WATER REPELLANT ABILITY TEST. THE USE OF FILLERS LEADS TO AN IMPROVEMENT IN THE BEHAVIOR OF BITUMINOUS MIXTURES IN THE PRESENCE OF WATER, IMPROVEMENT IN THE OUTPUT OF MIXERS, AND POSSIBILITY OF DECREASING THE BITUMEN CONTENT OF BITUMINOUS MIXTURES. /TRRL/ WITH A HIGH MOLECULAR WEIGHT). THE MIXTURE IS THEN CRUSHED IN A BALL GRINDER. THE FILLER OBTAINED IS WATER REPELLENT IF THE ACTIVATING MIXTURE CONTENT IS SUPERIOR OR EQUAL TO 1.5 PER CENT. THE FOLLOWING TESTS ARE CARRIED OUT IN THE FACTORY ON ACTIVATED FILLERS: HOMOGENEITY TEST, WATER REPELLANT ABILITY TEST. THE USE OF FILLERS LEADS TO AN IMPROVEMENT IN THE BEHAVIOR OF BITUMINOUS MIXTURES IN THE PRESENCE OF WATER, IMPROVEMENT IN THE OUTPUT OF MIXERS, AND POSSIBILITY OF DECREASING THE BITUMEN CONTENT OF BITUMINOUS MIXTURES. /TRRL/

  • Corporate Authors:

    Orgtranstroi, Moscow /Ussr

    ,    
  • Authors:
    • Belyaev, B E
  • Publication Date: 1963

Media Info

  • Features: Figures; Photos; Tables;
  • Pagination: p. 28-34

Subject/Index Terms

Filing Info

  • Accession Number: 00211283
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: TRIS
  • Created Date: Dec 22 1973 12:00AM