GRANULATION OF BLAST-FURNACE SLAG /IN FRENCH/

THE GENERAL CHARACTERISTICS OF GRANULATED SLAG ARE DISCUSSED (VITREOUS STRUCTURE AND HYDRAULIC POTENTIAL, FRIABILITY AND APTITUDE TO RUSHING, MOISTURE CONTENT, AND BULK SPECIFIC GRAVITY), AND VARIOUS GRANULATION PROCESSES ARE REVIEWED: DRY GRANULATION (COMPRESSED AIR IS USED TO DISPERSE THE SLAG WHICH IS THEN COOLED IN A METAL-SHEET DRUM), SEMI-WET GRANULATION (IN A GRANULATING MILL THE SLAG IS LOOSENED BY SUDDEN COOLING OF THE WATER AND THROWN AGAINST A ROTATING BODY), AND GRANULATION IN WATER (SUDDEN IMMERSION TO OBTAIN A HIGHLY VITRIFIED GRANULAR MATERIAL WITH A HIGH HYDRAULIC POTENTIAL). FACTORS INFLUENCING GRANULATION RESULTS ARE EXAMINED: THERMAL STATE AND COMPOSITION OF THE SLAG, AND SELECTION OF THE GRANULATION METHOD. ATTENTION IS DRAWN TO THE IMPORTANCE OF CHECKING THE COMPOSITION, DEGREE OF VITRIFICATION, AND APTITUDE TO FINE CRUSHING OR COMPACTION. AMONG FLEXIBLE CRITERIA, SPECIAL MENTION IS MADE OF THE LCPC ALPHA COEFFICIENT AND DRY BULK DENSITY. /LCPC/RRL/

• Supplemental Notes:
  • No 3, pp 689-713, 13 FIG, 8 TAB, 16 REF
• Corporate Authors:

  Centre De Doc Siderurgique /France

  ,    
• Authors:
  • Javelle, P
• Publication Date: 1969

Subject/Index Terms

• TRT Terms: Blast furnaces; Bulk density; Density; Granular materials; Granulated slag; Moisture content; Properties of materials; Slag; Temperature
• Uncontrolled Terms: Characteristics
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00217716
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: May 26 1971 12:00AM