Hot mix asphalt research investigation for Connecticut, part D : evaluate the feasibility of using permeability for in-place density dispute resolution on bridge decks.

Details

• Creators:
  Jackson, Eric ; Hansen, Gilbert
• Corporate Creators:
  Connecticut Transportation Institute
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Hot mix asphalt
  • Feasibility analysis
  • Permeability
  • Bridge decks
  • Asphalt pavements
  • In place density
  • Air voids
  • Porosity
  • Nondestructive tests
• Publication/ Report Number:
  CT-2250-4-13-3
• Resource Type:
  Tech Report
• Geographical Coverage:
  Connecticut
• Corporate Publisher:
  Connecticut. Dept. of Transportation
• Abstract:
  The presence of water in asphalt pavements is detrimental to the life of the pavement. Most ; construction specifications require the pavement to be compacted to a specific air void content. As an asphalt ; pavement’s air void content increases, the permeability of that pavement will typically increase. The ; relationship between density and permeability indicates that the lower the density the higher the permeability. ; Pavement permeability can cause significant issues on bridge decks. For example, if steel reinforcing is ; exposed to water and salt permeating through the pavement, oxidation can occur and steel members will begin ; to deteriorate rapidly. Therefore, the objective of Part D of the CT HMA study is to determine if measuring the ; permeability of a pavement on a bridge deck will work as a non-destructive dispute resolution test for the in-place density of the pavement. The data collected and analyzed for this research indicates there is an ; exponential growth in permeability as the percent air voids increase. However, for a permeability based dispute ; resolution process to be implemented the field testing method would need to be much more sophisticated than ; current methods. The subjective nature of the test has the potential to cause more disputes than it would ; resolve
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27714/dot_27714_DS1.pdf
• File Type:
  [PDF - 3.95 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:5d2a32df27f851590f60b920ca8ea286db2dbbf1f9e9ef7a4c1334b3666d8894973c2c92e19cb8db4f86772c5dee674040570c91876ab4d4de82b2ec61aab845