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LTPP Computed Parameter: Dynamic Modulus

Y. R. Kim / B. Underwood / M. S. Far / N. Jackson / J. Puccinelli

The dynamic modulus, (E (asterick)), is a fundamental property that defines the stiffness characteristics of hot mix asphalt (HMA) mixtures as a function of loading rate and temperature. Given the significance of (E(asterick)) in pavement engineering, this project was undertaken to provide the Long- Term Pavement Performance (LTPP) database with (E(asterick)) estimates using material properties currently available for LTPP test sections. In this report, existing models used to estimate (E (asterick)) values and additional models that have been developed based on the use of artificial neural networks (ANNs) were evaluated. Using the results of the model evaluation, the research team developed a model selection hierarchy and populated the LTPP database with (E (asterick)) estimates at five temperatures and six frequencies. It also developed shift factors and sigmodial functions that can be used to construct mastercurves.

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LTPP Computed Parameter: Dynamic Modulus

Y. R. Kim / B. Underwood / M. S. Far / N. Jackson / J. Puccinelli

The dynamic modulus, (E (asterick)), is a fundamental property that defines the stiffness characteristics of hot mix asphalt (HMA) mixtures as a function of loading rate and temperature. Given the significance of (E(asterick)) in pavement engineering, this project was undertaken to provide the Long- Term Pavement Performance (LTPP) database with (E(asterick)) estimates using material properties currently available for LTPP test sections. In this report, existing models used to estimate (E (asterick)) values and additional models that have been developed based on the use of artificial neural networks (ANNs) were evaluated. Using the results of the model evaluation, the research team developed a model selection hierarchy and populated the LTPP database with (E (asterick)) estimates at five temperatures and six frequencies. It also developed shift factors and sigmodial functions that can be used to construct mastercurves.

LTPP Computed Parameter: Dynamic Modulus

Y. R. Kim / B. Underwood / M. S. Far / N. Jackson / J. Puccinelli

The dynamic modulus, (E (asterick)), is a fundamental property that defines the stiffness characteristics of hot mix asphalt (HMA) mixtures as a function of loading rate and temperature. Given the significance of (E(asterick)) in pavement engineering, this project was undertaken to provide the Long- Term Pavement Performance (LTPP) database with (E(asterick)) estimates using material properties currently available for LTPP test sections. In this report, existing models used to estimate (E (asterick)) values and additional models that have been developed based on the use of artificial neural networks (ANNs) were evaluated. Using the results of the model evaluation, the research team developed a model selection hierarchy and populated the LTPP database with (E (asterick)) estimates at five temperatures and six frequencies. It also developed shift factors and sigmodial functions that can be used to construct mastercurves.

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Titel:

LTPP Computed Parameter: Dynamic Modulus

Beteiligte:

Y. R. Kim (Autor:in) / B. Underwood (Autor:in) / M. S. Far (Autor:in) / N. Jackson (Autor:in) / J. Puccinelli (Autor:in)

Erscheinungsdatum:

2011

Format / Umfang:

268 pages

Medientyp:

Report

Format:

Keine Angabe

Sprache:

Englisch

Schlagwörter:

Transportation , Construction Equipment, Materials, & Supplies , Highway Engineering , Dynamic modulus , Hot mix asphalt , Pavement performance , Quality control , Artificial neural network(ANN) , Long term pavement performance(LTPP) , Temperature , Procedure

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