Performance Evaluation of Cold In-place Recycling Mixtures Using Emulsified Asphalt

The need for a cold in-place recycling (CIR)-emulsion mixture with specific engineering properties calls for the use of a mix design and, recently, a new mix design procedure was developed for CIR-emulsion. As a part of CIR-emulsion mix design process, the simple performance tests, which include dynamic modulus test, flow number test, flow time test, and raveling test, were conducted to evaluate short- and long-term performance of CIR-emulsion mixtures at various testing temperatures and loading conditions. Based on the simple performance test results, the optimum emulsified asphalt content for CIR was determined. Dynamic modulus, flow number and flow time of CIR-emulsion mixtures using CSS-1h were higher than those of HFMS-2P. Flow number and flow time of CIR-emulsion using RAP materials with softer residual asphalt was higher than those of CIR-emulsion using RAP materials with harder residual asphalt. The dynamic modulus, flow number and flow time were affected by both emulsion type and residual asphalt stiffness of RAP materials. Raveling loss of CIR-emulsion with 1.5% emulsified was significantly less than those with 0.5% and 1.0%.

Language

  • English

Media Info

  • Media Type: DVD
  • Features: Figures; References; Tables;
  • Pagination: 8p
  • Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01152359
  • Record Type: Publication
  • Report/Paper Numbers: 10-4010
  • Files: TRIS, TRB
  • Created Date: Jan 25 2010 12:03PM