SYNTHETIC AGGREGATES. HIGH-PERFORMANCE SLAG

GRANULATS ARTIFICIELS, LAITIER A HAUTES PERFORMANCES

THIS ARTICLE REPRODUCES A PAPER PRESENTED AT THE ONE-DAY CONFERENCE ON THE MANUFACTURE AND USE OF BLAST-FURNACE SLAG, WHICH WAS HELD AT PONT-A-MOUSSON 8TH JUNE 1973. DETAILS ARE GIVEN OF THE MANUFACTURE OF SYNTHETIC AGGREGATES WITH A VIEW TO ENSURING HIGH SKIDDING RESISTANCE AT HIGH SPEED OVER THREE OR FOUR YEARS ON HIGHLY TRAFFICKED ROADS. BECAUSE OF THE UNSATISFACTORY MECHANICAL CHARACTERISTICS OF SLAG AGGREGATES (LOS ANGELES COEFFICIENT APPROXIMATELY 5, WET DEVAL COEFFICIENT HIGHER THAN 15, ACCELERATED POLISHING COEFFICIENT IN THE ORDER OF 0,70), A STUDY WAS MADE OF THE POSSIBILITY OF MODIFYING THE NATURE OF THE SLAG. THREE MIXTURES WERE STUDIED: SLAG-FLY ASH, SLAG-FLY ASH-SAND, AND SLAG-SAND. THE BEST RESULT WAS OBTAINED AFTER HEAT TREATMENT OF THE SAND-SLAG MIXTURE. GOOD MECHANICAL CHARACTERISTICS WERE REACHED IN THE LABORATORY FOR THE LOS ANGELES AND DEVAL COEFFICIENTS; AS REGARDS THE ACCELERATED POLISHING COEFFICIENT, AN IMPROVED SHAPE COEFFICIENT AND THE USE OF ANGULAR AGGREGATES WILL PROBABLY COMPENSATE FOR THE AVERAGE VALUE OBTAINED.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0373708X
• Authors:
  • PANIS, M
• Publication Date: 1973

Language

• French

Media Info

• Pagination: 32-6
• Serial:
  • LAIT HAUTS FOURN
  • Volume: 26
  • Issue Number: 29
  • ISSN: 0373-708X

Subject/Index Terms

• TRT Terms: Aggregate tests; Aggregates; Fly ash; Granulated slag; Heat; Polished aggregates; Sand; Skid resistance; Slag; Tests; Wear
• Identifier Terms: Los Angeles Test
• Uncontrolled Terms: Artificial
• ITRD Terms: 4577: Aggregate; 9097: Artificial; 4580: Fly ash; 4560: Granulated slag; 6743: Heat; 6208: Los Angeles test; 3822: Polishing; 4105: Sand; 3031: Skid resistance; 4561: Slag; STRENGTH(MATER) ; 6255: Test; 5293: Wear
• Subject Areas: Geotechnology; I36: Aggregates;

Filing Info

• Accession Number: 01313799
• 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 2:50PM