A practical method to minimize the adverse effects of negative skin friction on piles is to coat them with bitumen down to their neutral points to debond them from embedding soil. Bitumen is a petroleum product consisting of extremely complex organic compounds including polycyclic aromatic hydrocarbons (PAHs) that the United States Environmental Protection Agency (EPA) considers toxic and carcinogenic. To study the engineering behavior of bitumen-coated piles under severe weather conditions, full-scale field tests were conducted in New Orleans, Louisiana, and Edmonton, Alberta, Canada. Piles were instrumented and installed at these sites from 1989 to 1990. This paper presents the findings of geoenvironmental field tests conducted at these sites to determine the spatial distribution of target PAHs in the subsurface after the piles had been installed for 2 to 3 1/2 years. The findings of the study reveal that subsurface contamination, if it exists, caused by the installation of bitumen-coated piles is well within acceptable limits.


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Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: p. 736-744
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00726910
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 3 1996 12:00AM