Development of performance-based guidelines for selection of bituminous-based hot-poured pavement crack sealant : an executive summary report.
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2009-01-01
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Edition:Final contract report;July 2003December 2007.
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Abstract:This report summarizes research presented in separate technical reports, papers, and journal articles that collectively document the development of a systematic process to aid in the selection of appropriate bituminous hot-poured sealants for pavement cracks and joints. The following process elements are summarized herein: Apparent Viscosity Test for Hot-Poured Crack Sealants, Development of a Short-Term Aging Test and Low-Temperature Testing Bibliography, Sealant Flow and Deformation by Dynamic Shear Rheometry in Summer Temperatures, Characterization of Low Temperature Creep Properties of Crack Sealants Using Crack Sealant Bending Beam Rheometry, Characterization of Low Temperature Mechanical Properties of Crack Sealants Using Crack Sealant Direct Tension Test, and Development of Adhesion Tests for Crack Sealants at Low Temperature. This report brings the results of this cumulative research together to introduce a set of tests and performance parameters for sealant at installation and service temperatures; an aging procedure to simulate sealant weathering; and most important, a simplified chart with thresholds for all performance parameters for the straightforward selection of crack sealant.
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