EFFECTS OF DIFFERENT METHODS OF STOCKPILING AGGREGATES INTERIM REPORT

THE EFFECTS OF DIFFERENT METHODS OF CONSTRUCTING AND RECLAIMING AGGREGATE STOCKPILES WERE MEASURED. ELEVEN FULL- SCALE STOCKPILES WERE CONSTRUCTED AND RECLAIMED BY METHODS COMMONLY USED BY THE INDUSTRY. THE OVERALL VARIANCE OF THE GRADATION OF THE AGGREGATE IN THE OUTPUT OF THESE STOCKPILES WAS MEASURED IN TERMS OF A SINGLE NUMBER RELATED TO THE SURFACE AREA AND VOIDAGE OF THE AGGREGATE AND EXPRESSES THE RELATIVE COARSENESS OF AN AGGREGATE GRADATION, AND THE PERCENTAGES PASSING THE STANDARD SIEVES. A SEGREGATION INDEX WAS OBTAINED BY DIVIDING THE OVERALL VARIANCE BY THE WITHIN-BATCH VARIANCE. IN GENERAL, IT IS REPORTED THAT SEGREGATION WAS MINIMIZED WHEN THE STOCKPILES WERE FORMED BY SPREADING AGGREGATES IN THIN LAYERS AND RECLAIMING THEM WITH A FRONT-END LOADER.

• Record URL:
  • http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_5.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00775614
• Supplemental Notes:
  • No 5, 48 Pp, 26 FIG, 8 TAB, 49 REF, 3 APP
• Publication Date: 1964

Media Info

• Pagination: 48p
• Serial:
  • NCHRP Report
  • Issue Number: 5
  • Publisher: Transportation Research Board
  • ISSN: 0077-5614

Subject/Index Terms

• TRT Terms: Aggregate gradation; Aggregates; Construction; Land reclamation; Measurement; Methodology; Pavement layers; Ratios; Stockpiling; Surfaces; Thinness; Void ratios
• Uncontrolled Terms: Segregation; Surface area
• Old TRIS Terms: Front end loaders; Indexes / ratios /; Reclamation; Void
• Subject Areas: Construction; Geotechnology; Highways;

Filing Info

• Accession Number: 00217439
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 18 1994 12:00AM