Hydrated Lime and Lime Kiln Dust as Additives for CIR and FDR Materials Treated with Asphalt Emulsion and Foamed Asphalt

Nowadays, a lot of research is being done on many different aspects of pavement maintenance and rehabilitation in order to increase the lifespan of current roadways. In-place recycling, mostly cold such as Cold In-place Recycling (CIR) and Full Depth Reclamation (FDR), has become an interesting option because of its lower cost when compared to complete reconstruction, but also since it does increase the pavement life while having minimal effect on the environment. In order to demonstrate the performance of lime, as hydrated lime or lime kiln dust, a research program investigating the effectiveness of those materials when used in FDR or CIR mix designs was performed. Samples of CIR and FDR (with 50 percent Reclaimed Asphalt Pavement, RAP and 50 percent aggregates) were prepared in laboratory and treated with either asphalt emulsion or foamed asphalt, as well as cement, hydrated lime, or Lime Kiln Dust (LKD). Marshall stability and indirect tensile strength were verified for each mix after different curing time. The results have shown that the use of hydrated lime or LKD in CIR or FDR with asphalt emulsion or with foamed asphalt is a good alternative to the use of cement. (A)

• Corporate Authors:

  Canadian Technical Asphalt Association

  ,   United States 
• Authors:
  • LACHANCE, E
  • Carter, A
  • TATE, M
• Conference:
  • FIFTY-SEVENTH ANNUAL CONFERENCE OF THE CANADIAN TECHNICAL ASPHALT ASSOCIATION (CTAA)
  • Location: Vancouver British Columbia, Canada
  • Date: 2012-11-18 to 2012-11-21
• Publication Date: 2012

Language

• English

Media Info

• Pagination: p. 211-24
• Monograph Title: Proceedings of the Fifty-Seventh Annual Conference of the Canadian Technical Asphalt Association: Vancouver, British Columbia November 2012

Subject/Index Terms

• TRT Terms: Admixtures; Asphalt pavements; Bitumen; Calcium oxide; Cold in-place recycling; Conferences; Evaluation; Fly ash; Foamed materials; Recycling
• Geographic Terms: Canada
• ITRD Terms: 4736: Admixture; 8018: Canada; 4591: Cold in situ recycling; 8525: Conference; 9020: Evaluation (assessment); 4580: Fly ash; 4974: Foamed bitumen; 2922: Full depth asphalt pavement; 4574: Lime
• Subject Areas: Data and Information Technology; Highways; I31: Bituminous Binders and Materials; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01494234
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: ITRD, TAC
• Created Date: Sep 24 2013 12:57PM