THE BREAKING MECHANISM OF CATIONIC BITUMEN EMULSIONS

THIS ARTICLE INITIALLY DEALS WITH THE BREAKING MECHANISM OF ANIONIC EMULSIONS WHICH IS DEPENDENT ON WHETHER CALCAREOUS OR SILICEOUS AGGREGATES ARE INVOLVED. THE FACTORS WHICH AFFECT THE BREAKING OF A CATIONIC EMULSION ARE: THE SPECIFIC AREA OF THE AGGREGATE, NATURE OF THE FINES, TEMPERATURE, AND QUANTITY OF EMULSIFYING AGENT. THE DIFFERENCES BETWEEN THE PERFORMANCES OF ANIONIC AND CATIONIC EMULSIONS ARE DEMONSTRATED EXPERIMENTALLY BY EXAMINING THE EFFECT OF A NEUTRAL AQUEOUS SOLUTION OF AMINE HYDROCHLORIDE ON SILICEOUS OR CALCAREOUS AGGREGATES. THE APPARATUS, PROCEDURE, AND RESULTS ARE DISCUSSED. IT IS CONCLUDED THAT THE IONIC NATURE OF THE ADSORPTION ON SAND OF A TRUE SOLUTION OF AN AMINE HYDROCHLORIDE IN WATER IS CHARACTERISED BY THE FOLLOWING FACTS: (1) THE CATION IS ALWAYS ADSORBED ALONE. (2) THE ANION IS NEVER ADSORBED. (3) DESORPTION OCCURS ONLY IN AN ACIDIC SOLUTION. /RRL/

  • Availability:
  • Supplemental Notes:
    • No 6, pp 221-4, 4 FIG, 3 TAB, 8 REF
  • Authors:
    • Gaestel, C
  • Publication Date: 1967-2

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Filing Info

  • Accession Number: 00211042
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Oct 13 1994 12:00AM