EXPERIMENTAL BITUMINOUS MIXES TO MINIMIZE PAVEMENT RUTTING (WITH DISCUSSION AND CLOSURE)

Two S-5 mixes placed in 1984 on the Richmond-Petersburg Turnpike, a section of I-95, displayed either inadequate stability of slow setting characteristics. Ruts as deep as 2.5 in. (6.4 cm) occurred within several months of placement. Investigations by the Materials Division of the Virginia Highway and Transportation Department and the Asphalt Institute identified some possible causes for the problems with both mixes: high asphalt content, ruts in underlying pavement, inadequate density, mica content in the aggregate, and traffic on the fresh pavement too soon. Because the Turnpike is subjected to 59,390 vehicles per day (roughly 30,000 in each direction) and heavy loads, it was agreed that mixes placed in 1985 should be selected and designed to include experimental variables likely to enhance the strength of the mix and provide information useful in the future design of mixes used in pavement that must by subjected to heavy traffic. This paper presents the results of an evaluation of the performance of four mixes designed to resist rutting. The evaluation covers the first 12 months of service.

• Corporate Authors:

  Association of Asphalt Paving Technologists (AAPT)

  400 Selby Avenue, Suite I
  St Paul, MN  United States  55102
• Authors:
  • Hughes, C S
  • Maupin Jr, G W
• Conference:
  • Association of Asphalt Paving Technologists Proc
• Publication Date: 1987

Language

• English

Media Info

• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: p. 1-32
• Serial:
  • Volume: 56

Subject/Index Terms

• TRT Terms: Asphalt content; Bituminous mixtures; Density; Mica; Mix design; Pavement performance; Performance evaluations; Rutting; Strength of materials; Traffic
• Subject Areas: Design; Highways; Materials; Operations and Traffic Management; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00739789
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 27 1997 12:00AM