Evaluation and field validation of proposed strategic highway research program binder specification for thermal cracking

Shelley Marie Stoffels, Reynaldo Roque, Tariq Farwana

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

An empirical approach is used to validate the proposed Strategic Highway Research Program (SHRP) binder specification for thermal cracking. Binders extracted from the SHRP A-005 General Pavement Study sections are used to validate the proposed binder specification. The specification parameters at the required test temperatures were generated from the aged binders' master stiffness curves. Although the proposed specification parameters [creep stiffness (S) and slope of the binder stiffness curve (m) at 60-sec loading time] appear to be reasonable, the temperature ranges defined in Version 7G of the specifications are clearly too broad and result in a specification that is too restrictive. The defined limits on S and m are also too restrictive. Alternative limits are suggested for a specification with narrower temperature ranges. The binder specification was subsequently altered as a result of this and other work. The revised specification is also evaluated. The new specification structure and limits appear to be more effective.

Original languageEnglish (US)
Pages (from-to)1-10
Number of pages10
JournalTransportation Research Record
Issue number1436
StatePublished - Oct 1994

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Binders
Specifications
Stiffness
Hot Temperature
Pavements
Temperature
Creep

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering

Cite this

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abstract = "An empirical approach is used to validate the proposed Strategic Highway Research Program (SHRP) binder specification for thermal cracking. Binders extracted from the SHRP A-005 General Pavement Study sections are used to validate the proposed binder specification. The specification parameters at the required test temperatures were generated from the aged binders' master stiffness curves. Although the proposed specification parameters [creep stiffness (S) and slope of the binder stiffness curve (m) at 60-sec loading time] appear to be reasonable, the temperature ranges defined in Version 7G of the specifications are clearly too broad and result in a specification that is too restrictive. The defined limits on S and m are also too restrictive. Alternative limits are suggested for a specification with narrower temperature ranges. The binder specification was subsequently altered as a result of this and other work. The revised specification is also evaluated. The new specification structure and limits appear to be more effective.",
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Evaluation and field validation of proposed strategic highway research program binder specification for thermal cracking. / Stoffels, Shelley Marie; Roque, Reynaldo; Farwana, Tariq.

In: Transportation Research Record, No. 1436, 10.1994, p. 1-10.

Research output: Contribution to journalArticle

TY - JOUR

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