OXIDATION CRACKING OF ASPHALT PAVEMENTS

RESEARCH WAS CONDUCTED TO EVALUATE THE AVERAGE MOISTURE CONTENT OF ASPHALT PAVEMENTS UNDER FIELD CONDITIONS. WEATHER DATA FOR THE NORTHERN PART OF MISSISSIPPI WAS ANALYZED IN RELATION TO THE RATE OF EVAPORATIONS FROM PAVEMENTS AND THE CONCLUSION REACHED THAT MOISTURE IS PRESENT IN THE VOID SPACES OF THE PAVEMENT AT ALL TIMES. CHEMICAL ANALYSIS OF ASPHALT EXTRACTED FROM WEATHERED SAMPLES SHOWS NO INCREASE IN OXYGEN CONTENT. LOCAL ASPHALTS WERE FOUND TO CONTAIN ABOUT 6 PERCENT SULPHUR WHICH WAS CONSIDERED UNUSUAL. DR OAKES PROPOSES A CHANGE IN WEATHERING PROCEDURE WHEREBY THREE (3) SAMPLES CAN BE PROCESSED THROUGH WEATHERING CELLS SIMULTANEOUSLY WHICH WILL SPEED UP COMPLETION OF THIS STUDY. /AUTHOR/

• Supplemental Notes:
  • Report No. 4, 39
• Corporate Authors:

  Mississippi State University, Mississippi State

  College of Engineering
  Mississippi State, MS  United States  39762

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590

  Mississippi State Highway Department

  P.O. Box 1850
  Jackson, MI  United States  39215
• Authors:
  • Oakes, D T
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Asphalt; Asphalt pavements; Chemical analysis; Evaporation; Field studies; Moisture content; Oxidation; Pavement cracking; Sulfur; Weathering
• Old TRIS Terms: Field investigations
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 00206409
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS, STATEDOT
• Created Date: Jul 14 1970 12:00AM