Development of crack sealant bending beam rheometer (CSBBR) testing to characterize hot-poured bituminous crack sealants at low temperatures

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TypeArticle
Journal titleJournal of the Association of Asphalt Paving Technologists
Volume27
Pages85122; # of pages: 38
Subjectpavement, maintenance, sealants, adhesion, specification, testing, BBR, low temperature; Pavements
AbstractThis paper presents a modified test for evaluating the rheological behavior of hot-poured bituminous crack sealants using a bending beam rheometer. The research was done to provide better correlation between sealant test characteristics and field performance than existing tests. The new test procedure includes new specimen geometry and preparation parameters, a specimen aging procedure, a validated testing period, and establishes a time at which stiffness is determined. Nine sealants with a wide range of rheological behaviors were tested between ?4°C and ?40°C. The new test procedure was used to ascertain the stiffness at 240s, the average creep rate, and the dissipated energy ratio of the test samples.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number46899
18285
NPARC number20378418
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Record identifier4b2a5b46-099c-48ed-be2e-c423da4bc9f0
Record created2012-07-24
Record modified2016-05-09
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