Quality Control of Full-Depth Reclamation (FDR): A Case Study

Although Full-Depth Reclamation (FDR) with stabilization of pavements has been known for nearly 50 years, this process is not widely used, as its potential (i.e. reduction in natural resources consumption, transportation, waste, emissions, energy and cost) is underestimated. This is due to a lack of knowledge about pavement design and the absence of quality control methods and on-site tests to monitor the hardening progress of these recycled materials. In this Quebec study, it is proposed to evaluate the applicability of devises that are sufficiently accurate, easy to transport and use for quality control of theses recycled materials. The Dynamic Cone Penetrometer (DCP) provides information on the thickness, strength and variability of unstabilized layers. Through correlations, it is possible to calculate the resilient modulus (M,) and the California Bearing Ratio (CBR) of layers; useful for pavement design. On the stabilized layer, it is necessary to use a Lightweight Deflectometer (LWD), to evaluate the surface elastic modulus (Elwd) of the pavement and monitor the hardening or strength gain of the layer. Overall, this study has shown that DCP and LWD devises are highly effective in assessing FDR characteristics, but some limitations were found. Some guidelines for their use are presented.

• Availability:
  • Find a library where document is available. Order URL: https://www.ctaa.ca/bookstore/
• Corporate Authors:

  Canadian Technical Asphalt Association

  174-2417 Main Street
  West Kelowna, British Columbia  Canada  V4T 2H8
• Authors:
  • Lachance-Tremblay, Éric
  • Lamothe, Sébastien
  • Vaillancourt, Michel
• Conference:
  • Proceedings of the Sixty-Eighth Annual Conference of the Canadian Technical Asphalt Association (CTAA)
  • Location: Charlottetown Prince Edward Island, Canada
  • Date: 2023-11-0 to 2023-11-0
• Publication Date: 2023-11

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 127-150
• Monograph Title: Proceedings of the Sixty-Eighth Annual Conference of the Canadian Technical Asphalt Association (CTAA)

Subject/Index Terms

• ITRD Terms: 8018: Canada; 8531: Case study; 8525: Conference; 6187: Deflectograph; 6296: Dynamic penetration test; 2922: Full depth asphalt pavement; 9123: Quality assurance; 4966: Reclaimed asphalt; 6255: Test
• Subject Areas: I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01921486
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• ISBN: 9781990149030
• Files: ITRD, TAC
• Created Date: Jun 13 2024 9:46AM