Experimental demonstration of liquid antistrip in hot mix asphalt pavement.

Details

• Corporate Creators:
  Maine. Dept. of Transportation. Transportation Research Division
• Subject/TRT Terms:
  • Antistrip additives
  • Hot mix paving mixtures
• Publication/ Report Number:
  Technical Report 17- 07
• Resource Type:
  Tech Report
• Geographical Coverage:
  Maine ; United States
• Corporate Publisher:
  Maine. Dept. of Transportation. Transportation Research Division
• Abstract:
  In 2010, the Maine Department of Transportation constructed two projects with the use of Liquid Antistrip. ; The intent of these projects is to determine if an anti-strip admixture will improve the pavement ; quality in Northern Maine as well as other areas. ; In recent years, the Department has noticed many areas, particularly in Northern Maine, experiencing loss ; of aggregate in the wheel paths on recently placed HMA. This project has been selected due to its close ; proximity to other previously constructed projects that have exhibited premature failure and durability ; issues, most generally raveling and loss of aggregate from the wearing course. It has generally been ; accepted that the use of ant-strip additives was not a requirement when using virgin aggregate mixtures, ; but there is evidence from other State and Canadian Province studies that indicate that moisture damage ; and aggregate stripping incidence increases proportionally with the increase in recycled asphalt (RAP) ; percentages. This study is being conducted to determine which criteria determines liquid anti-strip use, ; and if anti-strips will be required. ; The occurrence of aggregate raveling and stripping is not isolated to Region 5, but is also evident in other ; parts of the state. This indicates that the issue may be related to not only aggregate sources, but RAP ; quality and percentages. ; As previously stated, liquid anti-strip has been used extensively by our Canadian neighbors in New ; Brunswick. Their aggregates are very similar in nature to those in Northern Maine as well as similar ; climatic conditions. They have been using this admixture for approximately 10 years. Irving Oil, as well ; as All States Asphalts, supply this material. Thus, material availability is not an issue. Anticipated added ; costs for this material to be incorporated in our Hot Mix Asphalt is estimated to be in the range of $1 to $2/HMA ton.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32245/dot_32245_DS1.pdf
• File Type:
  [PDF - 761.41 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:4f5c2cd471406722eb07559a42630455237cabfcb44adc507b43324735d7641d