SYMPOSIA PAPER Published: 01 January 1996
STP16062S

Evaluation of Cyclic Fatigue as a Means of Assessing the Performance of Construction Joint Sealants: Polyurethane Sealants

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Polyurethane based high performance construction sealants were subjected to cyclical movements using manually adjusted vices until rupture of the specimens occurred. Sealant fatigue behavior was compared with the fatigue behavior of elastomers and rubbers in order to gain a more quantitative understanding of sealants subjected to fatigue testing. Furthermore, failure of these sealant specimens during cyclic fatigue testing allowed for a comparison with previously reported results obtained from tests on both silicone and polysulfide sealants. The methods described in this paper provide a basis from which to assess the long-term performance of different types of sealants.

Author Information

Lacasse, MA
National Research Council Canada, Institute for Research in Construction, Materials Laboratory, Ottawa, Ontario, Canada
Bryce, JE
National Research Council Canada, Institute for Research in Construction, Materials Laboratory, Ottawa, Ontario, Canada
Margeson, JC
National Research Council Canada, Institute for Research in Construction, Materials Laboratory, Ottawa, Ontario, Canada
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Details
Developed by Committee: C24
Pages: 266–281
DOI: 10.1520/STP16062S
ISBN-EB: 978-0-8031-5329-5
ISBN-13: 978-0-8031-2049-5