Accelerated aging of bituminous sealants: small-kettle aging

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DOIResolve DOI: http://doi.org/10.1080/10298430802068899
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TypeArticle
Journal titleInternational Journal of Pavement Engineering
Volume9
IssueOctober 5
Pages365371; # of pages: 7
Subjectaging, asphalt, bitumen, crack sealing, degradation, chromatography, polymer, sealants; Selants and coatings; Roads/Pavement
AbstractBituminous sealants used in the maintenance of roadways are installed hot and heated to 150°C-200°C 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 (SKA) at the highest suggested sealant application temperature (HiSAT), or about 2h at HiSAT + 10°C, provided as much copolymer aging as that found in sealants sampled midway through installation.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number50314
19535
NPARC number20378180
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Record identifier273bcd1c-ee79-4a6d-9130-3b74f87ffb99
Record created2012-07-24
Record modified2016-05-09
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