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

研究成果: Chapter

11 引文 斯高帕斯(Scopus)

摘要

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.

原文English
主出版物標題Management and Maintainance of the Infrastructure
發行者National Research Council
頁面109-118
頁數10
版本1991
ISBN(列印)9780309104166
DOIs
出版狀態Published - 2007

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 機械工業

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