The Influence of Virgin Aggregate Content on the Strength and Modulus of Cold in Place Reclaimed Asphalt Pavement

Virgin crushed stone aggregate is often added to improve the gradation and increase the strength of the reclaimed asphalt pavement (RAP) materials treated with cement. The compaction, unconfined compressive strength (UCS), indirect tensile strength (ITS) and resilient modulus tests were conducted on 0%, 15% and 30% virgin aggregate content blended with RAP. Samples were treated using 3%, 5% and 7% 325# Portland cement respectively, and were cured for 7, 28 and 90 days. The results show that, with the increasing amount of cement content and virgin aggregate content, the optimum moisture content and maximum dry density of RAP/virgin aggregate blends will increase slightly. The increases of cement content, curing period and aggregate content will all lead to the increasing test values of UCS, ITS and resilient modulus. The proper cement content and virgin aggregate content were suggested around 5% and 15%, respectively, in this study.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780415871990
• Supplemental Notes:
  • Abstract reprinted with permission of Taylor & Francis.
• Corporate Authors:

  CRC Press/Balkema

  P.O. Box 447
  2300 AK Leiden,   Netherlands 
• Authors:
  • Wang, Hu
  • Hao, Peiwen
  • Zhang, K
• Conference:
  • Bearing Capacity of Roads, Railways and Airfields. 8th International Conference (BCR2A'09)
  • Location: Champaign IL, United States
  • Date: 2009-6-29 to 2009-7-2
• Publication Date: 2009

Language

• English

Media Info

• Media Type: Web
• Edition: e-book ISBN 9780203865286
• Features: Figures; References; Tables;
• Pagination: pp 1169-1176
• Monograph Title: Bearing Capacity of Roads, Railways and Airfields. Proceedings of the 8th International BCR2A'09 Conference

Subject/Index Terms

• TRT Terms: Aggregates; Aggregates, rock and stone; Bearing capacity; Cement content; Compressive strength; Concrete curing; Modulus of resilience; Moisture content; Reclaimed asphalt pavements; Tensile strength; Waste products (Materials)
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01350657
• Record Type: Publication
• ISBN: 9780415871990
• Files: TRIS
• Created Date: Aug 29 2011 2:56PM