ROTARY KILN-FIRED SYNTHETIC AGGREGATES MANUFACTURED FROM TEXAS LIGNITE FLY ASH

THE USE OF MANUFACTURED SYNTHETIC AGGREGATES IS INCREASING BECAUSE OF THE DEPLETION OF NATURAL AGGREGATE SUPPLIES AND THE TREND TOWARD WIDESPREAD USE OF LIGHT-WEIGHT CONSTRUCTION MATERIALS. WASTE MATERIALS AS WELL AS NATURAL CLAYS, SHALES, AND SLATES ARE BEING USED TO MANUFACTURE THESE SYNTHETIC AGGREGATES. THIS INVESTIGATION IS A STUDY OF THE PRODUCTION OF A SYNTHETIC AGGREGATE FROM FLY ASH, A WASTE PRODUCT OF AN ELECTRIC POWER PLANT. THE EFFECTS OF SEVERAL AGGLOMERATING AND EXTRUSION AIDS ON AN EXTRUDED KILN-FIRED FLY ASH AGGREGATE ARE EXAMINED. THE PHYSICAL PROPERTIES OF THESE AGGREGATES WERE OBTAINED AND COMPARED WITH ASTM SPECIFICATION C 330 AND WITH THE RECOMMENDED SYNTHETIC COARSE AGGREGATE CLASSIFICATION SYSTEM OF THE TEXAS TRANSPORTATION INSTITUTE. IT WAS CONCLUDED THAT FIVE OF THE SIX KILN-FIRED AGGREGATES ARE SUITABLE FOR ASPHALTIC CONCRETE SURFACES AND BASES, UNEXPOSED PORTLAND CEMENT CONCRETE, PORTLAND CEMENT CONCRETE PAVEMENTS, BASE COURSES, AND COVERSTONE FOR SEAL COATS AND SURFACE TREATMENTS. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1971/353/353-003.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309019664
• Supplemental Notes:
  • Sponsored by Committee on Mineral Aggregates and presented at the 50th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Bonifay, D W
  • Scott Jr, W W
  • Epps, J A
  • Gallaway, B M
• Publication Date: 1971

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 25-30
• Monograph Title: Mineral aggregates
• Serial:
  • Highway Research Record
  • Issue Number: 353
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Artificial aggregates; Asphalt concrete; Base course (Pavements); Extrusion; Fly ash; Impacts; Physical properties; Portland cement concrete; Waste products (Materials)
• Uncontrolled Terms: Agglomeration
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00217891
• Record Type: Publication
• ISBN: 0309019664
• Files: TRIS, TRB
• Created Date: Dec 13 1971 12:00AM