Newly Developed Adhesive Strength Test for Measuring the Strength of Sealant between Joints of Concrete Pavement
Publication: Journal of Materials in Civil Engineering
Volume 26, Issue 12
Abstract
A new adhesive strength test (AST) was developed to determine the adhesive strength of joint sealant. A series of sealant thicknesses, displacement rates, and curing times was tested to determine proper AST testing parameters using self-leveling (SL) and non-self-leveling (NS) silicone sealants. A series of tests was conducted under varying moisture conditions. The results appeared to indicate that moisture may reduce adhesive strength. Drying-time tests were conducted to determine the approximate appropriate wait time between joint washing and sealant installation for 3.2 mm () and 9.5 mm () joints. A series of tests was also conducted on artificially aged sealants, which appeared to indicate that oven aging reduces adhesive strength for SL sealant. Non-self-leveling sealant, on the other hand, appeared to be largely unaffected by oven aging. Hot-water aging and freeze-thaw aging appeared to reduce adhesive strengths for both sealant mixtures.
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Acknowledgments
Funding for this paper was provided by the Florida DOT (Contract Number BDK75 960-01; B. Dietrich, P.E., Project Manager).
References
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 26 • Issue 12 • December 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: May 21, 2013
Accepted: Jan 3, 2014
Published online: Jan 6, 2014
Discussion open until: Nov 27, 2014
Published in print: Dec 1, 2014
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