Early-Age Structural Properties of Base Material Treated with Asphalt Emulsion (With Discussion and Closure)

The objectives of this research were to investigate the early-age structural properties of base materials stabilized with asphalt emulsion and to assess the rate at which emulsion-treated base (ETB) design properties are achieved. Three experimental sections were established along a pavement reconstruction project near Saratoga Springs, Utah. Field tests were performed to assess the structural properties of the ETB immediately after construction and at 2, 3, 7, and 14 days; 4 months; and 1 year. Measured values were plotted against time to determine trends in ETB strength development and to determine pavement capacity. Modulus values were consistently low in all three sections during the first 2 weeks after construction, increased dramatically by 4 months, and then decreased considerably by 1 year. In the first 2 weeks after construction, the average ETB structural coefficient was 0.04. Only two of the three sections reached the design structural coefficient of 0.25, which occurred after approximately 3 months; however, the average structural coefficient measured for all three sections after 1 year of curing, which included a winter, was only 47% of the design strength. The results of this research showed that, while pavement capacity was sufficient at 4 months, it was severely reduced during the first 2 weeks and at 1 year. Trafficking under these reduced capacities would be expected to greatly compromise long-term pavement performance. For this reason, trafficking of materials similar to those investigated in this research is not recommended during at least the first 2 weeks after construction.

• Record URL:
  https://doi.org/10.3141/2253-05
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=Early-Age+Structural+Properties+of+Base+Material+Treated+with+Asphalt+Emulsion+(With+Discussion+and+Closure)&author=T.+Quick&author=W.+Guthrie&publication_year=2011
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780309222891
• Authors:
  • Quick, Tyler
  • Guthrie, W Spencer
• Discussers:
  • Thomas, Todd
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 40-50
• Monograph Title: Geology and Properties of Earth Materials 2011
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 2253
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Asphalt emulsions; Base course (Pavements); Bearing capacity; Field tests; Modulus of resilience; Pavement performance; Structural analysis; Test sections
• Geographic Terms: Saratoga Springs (Utah)
• Subject Areas: Geotechnology; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01336725
• Record Type: Publication
• ISBN: 9780309222891
• Report/Paper Numbers: 11-2775
• Files: TRIS, TRB
• Created Date: Apr 18 2011 12:24PM