Characterization Methodology for Preformed Compression Seals
Publication: Journal of Materials in Civil Engineering
Volume 9, Issue 3
Abstract
Preformed pavement polychloroprene compression seals were analyzed using dynamic shear rheology and numerical analysis to assess the feasibility of using these techniques to develop an improved methodology for designing and characterizing preformed seals, as well as predicting their field performance. The investigation consisted of three phases: (1) dynamic shear rheological analysis of unaged and aged polychloroprene materials to obtain material property input for numerical analysis; (2) numerical analysis of one preformed compression seal web design; and (3) numerical analysis verification through laboratory compression tests of unaged and aged seal materials. The investigational results indicate advanced material modeling capabilities of finite-element analysis coupled with the material properties obtained through dynamic shear rheological analysis provide a significant capability to explore seal performance variations resulting from different joint seal geometries, material compositions, and aging characteristics. The techniques investigated accurately described the deformation of the seal and provided force-displacement relationships, including relaxation with time and stiffening with age. Additional minor refinements in the techniques developed through this investigation would result in a powerful design and field performance predictive model.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 9 • Issue 3 • August 1997
Pages: 139 - 145
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Aug 1, 1997
Published in print: Aug 1997
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