Performance oriented guidance for Mississippi chip seals - volume II.

Details

• Creators:
  Howard, Isaac L. ; Alvarado, Alejandro ; Floyd, Webster C.
• Corporate Creators:
  Mississippi State University. Dept. of Civil and Environmental Engineering
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Laboratory tests
  • Field tests
  • Asphalt concrete pavements
  • Chip seals
  • Pavement performance
  • Service life
  • Aggregates
  • Asphalt emulsions
  • Test procedures
  • Testing equipment
• Publication/ Report Number:
  FHWA/MS-DOT-RD-13-211-Volume II
• Resource Type:
  Tech Report
• Geographical Coverage:
  Mississippi
• Corporate Publisher:
  Mississippi. Dept. of Transportation
• Abstract:
  A laboratory and field study was conducted related to long term chip seal performance. This report’s primary ; objective was to initiate development of a long term performance (LTP) test protocol for chip seals focused on ; aggregate retention. Key components of the study were to: 1) develop laboratory equipment and protocols to place a ; chip seal onto asphalt concrete; 2) develop laboratory equipment and protocols to evaluate chip seal aggregate loss ; placed onto asphalt concrete; 3) monitor chip sealed pavements from construction through two years of service life ; while collecting cores to be tested for aggregate loss in the laboratory; 4) compare laboratory produced chip seals to ; cores taken from in service pavements when using the same aggregates and emulsion. The study evaluated two ; pavements: Hwy 366 near Baldwyn, MS (Size 89 aggregates), and Hwy 44 near Hattiesburg, MS (Size 7 aggregates). ; The primary objective was met, though the effort stopped short of long term performance prediction of in service ; chip seals. The primary conclusion from this report was that fabricating chip seals in the laboratory that represent ; those placed in the field was feasible to some extent. Chip seals fabricated using the equipment developed in this ; research with Size 7 aggregates and corresponding embedment/conditioning protocols did represent field applied ; chip seals taken from Hwy 44 6 days after construction. Chip seals fabricated using the equipment developed in this ; research with Size 89 aggregates and corresponding embedment/conditioning protocols did not represent field ; applied chip seals taken from Hwy 366 10 days after construction.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27405/dot_27405_DS1.pdf
• File Type:
  [PDF - 6.03 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:e93780c1fbece7fec56bb1d57e545cced6af7228363811117069420fb5610f3a