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:
  Aggregates Asphalt Concrete Pavements Asphalt Emulsions Chip Seals Field Tests Laboratory Tests Pavement Performance Service Life Testing Equipment Test Procedures
• 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.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:e93780c1fbece7fec56bb1d57e545cced6af7228363811117069420fb5610f3a
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27405/dot_27405_DS1.pdf
• File Type:
  [PDF - 6.03 MB ]