Impact of Lime and Liquid Antistrip Agents on Properties of Idaho Hot-Mix Asphalt Mixture

In 2005, the Idaho Transportation Department constructed a field project on State Highway 67 (SH-67) to evaluate the impact of hydrated lime and a liquid antistrip agent on the mechanical properties of an Idaho hot-mix asphalt (HMA) mixture. This paper documents the results of a laboratory evaluation on field-produced HMA mixtures sampled from lime and liquid antistrip test sections on SH-67. As the two mixtures were subjected to multiple freeze–thaw (F-T) cycles, the mixture treated with hydrated lime (lime mixture) maintained good resilient-modulus properties over the entire 21 F-T cycles. The mixture treated with the liquid antistrip agent (liquid mixture) fully disintegrated after 22 F-T cycles. The results of a mechanistic analysis showed that, as a result of multiple F-T cycling, the liquid mixture will incur a 220% increase in potential rutting compared with the lime mixture, which will incur only a 65% potential increase in rutting. The dynamic moduli in compression demonstrated that both dry and moisture-conditioned lime mixtures can be considered less susceptible to rutting compared with liquid mixtures. Furthermore, the lime mixtures demonstrated better resistance to moisture damage than the liquid mixtures on the basis of the ratio of dynamic modulus in tension of moisture-conditioned to dry mixtures. The additional stiffness of the lime mixtures did not contribute to premature fatigue cracking when mixtures were subjected to dynamic creep testing in the tensile mode of loading.

• Record URL:
  https://doi.org/10.3141/1998-08
• 
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=Impact+of+Lime+and+Liquid+Antistrip+Agents+on+Properties+of+Idaho+Hot-Mix+Asphalt+Mixture&author=P.+Sebaaly&author=D.+Little&author=E.+Hajj&author=A.+Bhasin&publication_year=2007
• Availability:
  • Find a library where document is available. Order URL: http://www.trb.org/Main/Public/Blurbs/159462.aspx
• Authors:
  • Sebaaly, Peter E
  • Little, Dallas N
  • Hajj, Elie Y
  • Bhasin, Amit
• Publication Date: 2007

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 65-74
• Monograph Title: Bituminous and Nonbituminous Materials of Bituminous Paving Mixtures 2007
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 1998
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Antistrip additives; Asphalt mixtures; Calcium hydroxide; Cracking; Creep tests; Dynamic modulus of elasticity; Fatigue strength; Freeze thaw durability; Hot mix asphalt; Mechanical properties; Modulus of resilience; Moisture damage; Rutting
• Geographic Terms: Idaho
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01044560
• Record Type: Publication
• ISBN: 9780309104241
• Files: TRIS, TRB, ATRI
• Created Date: Feb 8 2007 5:36PM