Cost benefit analysis of anti-strip additives in hot mix asphalt with various aggregates.

Details

• Creators:
  Christensen, Donald ; Morian, Dennis ; Wang, William
• Corporate Creators:
  Advanced Asphalt Technologies, LLC
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  Aggregates Antistrip Additives Asphalt Concrete Benefit Cost Analysis Hot Mix Paving Mixtures Life Cycle Analysis Moisture Content
• Publication/ Report Number:
  FHWA-PA-2015-004-110204
• Resource Type:
  Tech Report
• Geographical Coverage:
  Pennsylvania
• Corporate Publisher:
  Pennsylvania. Dept. of Transportation. Bureau of Planning and Research
• Abstract:
  This report documents research on moisture sensitivity testing of hot-mix asphalt (HMA) mixes in Pennsylvania and the
  
  associated use of antistrip. The primary objective of the research was to evaluate and compare benefit/cost ratios of mandatory use
  
  of antistrip, and of antistrip usage conditional on the results of moisture resistance testing, based upon life cycle cost analyses. A
  
  secondary objective was to evaluate a unique version of the modified Lottman procedure used in Pennsylvania between 2003 and
  
  October 2014, which involved a relatively low level of saturation in specimen conditioning. This procedure (low-saturation method)
  
  typically results in saturation between about 30 % and 67 %, as compared to the 70 to 80 % required in the test version used by
  
  Pennsylvania prior to 2003 and after October 2014 (high-saturation method). It was found that the low-saturation method passed all
  
  HMA mixes, even those with a documented history of high susceptibility to moisture damage. This procedure therefore had a
  
  benefit/cost ratio of zero. For the high-saturation method, it was found that both antistrip usage dependent on the results of testing
  
  and mandatory usage for all mixes had benefit/cost ratios that were greater than one and in general much greater than one. The
  
  benefit/cost ratios for mandatory antistrip usage were greater than those for conditional usage, because of the high cost associated
  
  with the failure of moisture resistance testing to identify all moisture susceptible mixes.
  
  
• Format:
  PDF
• Funding:
  355I01 - 110204
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:32f8e5dce88a0d300cc79279fddfd7d67089bd4dc41273f86c1618207c028a8d
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29157/dot_29157_DS1.pdf
• File Type:
  [PDF - 1.84 MB ]