Low-temperature characterization of hot-poured crack sealant by crack sealant direct tensile tester

I. L. Al-Qadi, S. H. Yang, S. Dessouky, J. F. Masson

Research output: Chapter in Book/Report/Conference proceedingChapter

7 Citations (Scopus)

Abstract

The current specifications for selecting crack sealants correlate poorly with actual field performance. To address this issue and assist in predicting the low-temperature properties of hot-poured bituminous crack sealants, a modified direct tensile tester method has been developed. Sample geometry is modified to accommodate testing sealants. A sensitivity analysis considering various loading rates, sample lengths, and cross-section areas was conducted to define both optimized specimen geometry and testing protocol. Two types of sealants, having a wide range of rheological behaviors (one polymer-modified and one having crumb rubber), were tested at low temperature. Results showed that the rich polymer-modified sealant has a high resistance to failure compared with the sealant with crumb rubber-modified. Each sealant was tested at the lowest corresponding expected service temperature. A performance parameter, strain energy density, was proposed to differentiate crack sealant material in the laboratory.

Original languageEnglish
Title of host publicationManagement and Maintainance of the Infrastructure
Pages109-118
Number of pages10
Edition1991
DOIs
Publication statusPublished - 2007

Publication series

NameTransportation Research Record
Number1991
ISSN (Print)0361-1981

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Mechanical Engineering

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