Effect of Compaction Method on Mechanical Behavior of Graded Aggregate Base Materials

Previous studies indicated that the properties of aggregates and their compaction process are the most important factors in the design of granular highway base layers. It was argued that the conventional compaction method (impact compaction) did not fully reflect the real field performance of the granular materials. In the current study, the effect of aggregate properties and two different compaction methodologies on the mechanical behavior of granular highway base materials is investigated. Four different graded aggregate base (GAB) materials were used. A series of sieve analysis, compaction tests, California bearing ratio (CBR) tests, and resilient modulus tests were conducted to determine the effects of two different compaction methods on the mechanical behavior of GAB materials. The results indicated that impact compaction altered the gradation of base materials by breaking the aggregates into smaller particles, the GAB fines content increased and yielded an increase in optimum moisture content (OMC). In addition, CBR values of the specimens prepared with vibratory compaction method were higher than the CBR values of the specimens prepared with Impact compaction method. On the other hand, the specimens prepared with the impact compaction method yielded higher SMr values than the specimens prepared with the vibratory compaction method, except Bladensburg GAB.

• Record URL:
  https://doi.org/10.1061/9780784412121.153
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784412121
• Supplemental Notes:
  • © 2012 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Kaya, Zulkuf
  • Cetin, Altan
  • Cetin, Bora
  • Aydilek, Ahmet H
• Conference:
  • GeoCongress 2012
  • Location: Oakland California, United States
  • Date: 2012-3-25 to 2012-3-29
• Publication Date: 2012-3

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 1486-1494
• Monograph Title: GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering

Subject/Index Terms

• TRT Terms: Aggregate gradation; Aggregates; Base course (Pavements); California bearing ratio; Mechanical properties; Modulus of resilience; Moisture content; Road construction; Vibratory compaction
• Uncontrolled Terms: Graded aggregate base; Impact compaction
• Subject Areas: Construction; Highways; Materials; Pavements; I36: Aggregates; I52: Construction of Pavements and Surfacings;

Filing Info

• Accession Number: 01530371
• Record Type: Publication
• ISBN: 9780784412121
• Files: TRIS, ASCE
• Created Date: Nov 12 2013 2:04PM