FULL-SCALE ASPHALTIC CONSTRUCTION IN THE RESEARCH LABORATORY

THE BROAD GAP BETWEEN RESEARCH ON ASPHALTIC CONCRETE SPECIMENS PREPARED IN LABORATORY BENCH-TYPE EQUIPMENT AND TEST ROADS OR PUBLIC HIGHWAYS HAS BEEN NARROWED BY PROVIDING FULL-SCALE PAVING EQUIPMENT IN A RESEARCH FACILITY. THIS FACILITY PERMITS ASPHALTIC CONCRETE PAVEMENT CONSTRUCTION UNDER CONDITIONS OF CONTROL WHICH CANNOT BE REACHED IN FIELD OPERATIONS. THE USE OF THIS EQUIPMENT IS DESCRIBED. CONTROLS FOR ALL MAJOR CONSTRUCTION VARIABLES ARE DESCRIBED AND SPECIAL TECHNIQUES ARE DETAILED WHERE APPROPRIATE. METHODS INCLUDE: LARGE-SCALE AGGREGATE HANDLING, SCREENING AND GRADATION BLENDING TO LABORATORY TOLERANCES, REALISTIC DRYING AND MIXING, WITH CLOSE TEMPERATURE CONTROLS, ACCURATE MEASUREMENT AND RECORDING OF HOT-MIX TEMPERATURES THROUGHOUT THE MIXING, PLACING, AND ROLLING CYCLE, CONTROLLED STEEL- AND RUBBER-WHEELED COMPACTION, AND SAMPLING TECHNIQUES FOR EVALUATION TESTS. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrbbulletin/251/251-001.pdf
• Supplemental Notes:
  • No 251, pp 1-11, 12 FIG, 1 TAB, 1 REF 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:
  • Schmidt, R J
• Publication Date: 1960

Media Info

• Media Type: Digital/other
• Pagination: 11p
• Monograph Title: Asphaltic concrete construction - field and laboratory studies
• Serial:
  • Highway Research Board Bulletin
  • Issue Number: 251
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregates; Asphalt concrete; Asphalt pavements; Blending; Compaction; Construction management; Drying; Evaluation; Laboratory tests; Measurement; Mixing; Pavers; Paving; Rolling; Temperature control (Structures); Variables
• Old TRIS Terms: Aggregate blending; Aggregate drying; Placing
• Subject Areas: Construction; Geotechnology; Highways; Materials; Pavements;

Filing Info

• Accession Number: 00205694
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Aug 28 1994 12:00AM