Accelerated aging of bituminous sealants: Small kettle aging

J. F. Masson, John R. Woods, Peter Collins, Imad L. Al-Qadi

Research output: Contribution to journalArticle

Abstract

Bituminous sealants used in the maintenance of roadways are installed hot and heated to 150-200C during installation. High temperatures can degrade polymers in sealants, but there is no standard method to account for this possible degradation. In an attempt to find such a method, the aging of two sealants in large kettles during field applications was compared to that obtained in the laboratory by heating in a small kettle. The results indicate that 4h of small kettle aging at the highest suggested sealant application temperature (HiSAT), or about 2h at HiSAT+10C, provided as much copolymer aging as that found in sealants sampled midway through installation.

Original languageEnglish (US)
Pages (from-to)365-371
Number of pages7
JournalInternational Journal of Pavement Engineering
Volume9
Issue number5
DOIs
StatePublished - Oct 1 2008

Keywords

  • Aging
  • Asphalt
  • Bitumen
  • Degradation
  • Polymer
  • Sealants

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials

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