Development of viscoelastic mechanistic response model for crack sealant at low temperature

S. Dessouky, I. L. Al-Qadi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Hot-poured crack sealant is usually used to prevent the intrusion of water into pavement system and, hence, to delay pavement degradation. It is widely accepted that crack sealing is a cost effective routine maintenance that may increase the pavement service life. Current ASTM specifications showed ill-correlation between the selection of crack sealants and their field performance. To clearly understand the mechanical behavior of crack sealants, a constitutive relationship must be described. This paper presents the development of a viscoelastic model using Prony-series expansion to characterize crack sealants mechanical behavior at low temperatures. The model is fitted to creep measurements data obtained using a modified crack sealant bending beam rheometer (CSBBR). A three-dimensional finite element is used to determine the time-dependent deflection at the mid span of the beam. The model is found to be capable of simulating the deflection during the loading and the unloading process for tested sealants.

Original languageEnglish (US)
Title of host publicationAdvanced Characterisation of Pavement and Soil Engineering Materials - Proceedings of the International Conference on Advanced Characterisation of Pavement and Soil Engineering Materials
Pages1221-1229
Number of pages9
StatePublished - Dec 1 2007
EventInternational Conference on Advanced Characterisation of Pavement and Soil Engineering Materials - Athens, Greece
Duration: Jun 20 2007Jun 22 2007

Publication series

NameAdvanced Characterisation of Pavement and Soil Engineering Materials - Proceedings of the International Conference on Advanced Characterisation of Pavement and Soil Engineering Materials
Volume2

Other

OtherInternational Conference on Advanced Characterisation of Pavement and Soil Engineering Materials
CountryGreece
CityAthens
Period6/20/076/22/07

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials

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