MATERIAL CHARACTERIZATION OF HOT-MIX RECYCLED BITUMINOUS PAVEMENTS. FINAL REPORT

A detailed laboratory investigation was performed to characterize the performance of the hot mix recycled asphalt pavement in comparison with a virgin mix. A virgin mixture and three recycled mixtures were evaluated. Marshall size specimens were fabricated and evaluated using the pulse velocity, resilient modulus, indirect tensile strength, Hveem stability and Marshall stability tests. In addition the recycled binder itself was evaluated using a stage extraction technique and the thin film oven test results. Long term aging of recycled mixtures was also studied. Subjective conclusions were established for the performance of recycled mixtures under various conditions. Virgin mixture stiffness and strength parameters were higher than those of recycled mixtures. However, long term aging properties of two of the recycled mixtures were better than the virgin mix, especially when regarding the failure tensile strain. The thin film oven test and the indirect tensile test were identified as additional criteria for the choice of type and amount of recycling agent to be used. The results of this study will provide the highway engineer with a better understanding of the effect of different factors on the tensile and resilient characteristics of hot recycled bituminous paving mixtures.

• Corporate Authors:

  Purdue University/Indiana Department of Transportation JHRP

  Purdue University, School of Civil Engineering
  West Lafayette, IN  United States  47907-1284

  Indiana Department of Highways

  Indianapolis, IN  United States 

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Wood, L E
  • Noureldin, A S
• Publication Date: 1988-5

Media Info

• Features: Figures; References; Tables;
• Pagination: 159 p.

Subject/Index Terms

• TRT Terms: Hot in-place recycling; Hot mix asphalt; Hveem test; Laboratory tests; Marshall test; Modulus of resilience; Oven tests; Performance; Pulses; Recycling; Tension tests; Thin films; Time duration; Velocity
• Uncontrolled Terms: Indirect tensile test; Long term; Pulse velocity; Thin film oven test
• Old TRIS Terms: Aging; Rejuvenating agent
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00483858
• Record Type: Publication
• Report/Paper Numbers: FHWA/IN/JHRP-87/11, JHRP-87/11
• Files: TRIS, USDOT, STATEDOT
• Created Date: May 31 1989 12:00AM