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Titre du document / Document title

Practical procedure for developing dynamic modulus master curves for pavement structural design

Auteur(s) / Author(s)

BONAQUIST Ramon (1) ; CHRISTENSEN Donald W. (2) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Advanced Asphalt Technologies, LLC, 108 Powers Court, Suite 100, Sterling, VA 20166-9321, ETATS-UNIS
(2) Advanced Asphalt Tech nologies, LLC, 210 W. Hamilton Avenue, #304, State College, PA 16801, ETATS-UNIS

Résumé / Abstract

A dynamic modulus master curve for asphalt concrete is a critical input for flexible pavement design in the mechanistic-empirical pavement design guide developed in NCHRP Project 1-37A. The recommended testing to develop the modulus master curve is presented in AASHTO Provisional Standard TP62-03, Standard Method of Test for Determining Dynamic Modulus of Hot-Mix Asphalt Concrete Mixtures. It includes testing at least two replicate specimens at five temperatures between 14°F and 130°F (-10°C and 54.4°C) and six loading rates between 0.1 and 25 Hz. The master curve and shift factors are then developed from this database of 60 measured moduli using numerical optimization. The testing requires substantial effort, and there is much overlap in the measured data, which is not needed when numerical methods are used to perform the time-temperature shifting for the master curve. This paper presents an alternative to the testing sequence specified in AASHTO TP62-03. It requires testing at only three temperatures between 40°F and 115°F (4.4°C and 46.1°C) and four rates of loading between 0.01 and 10 Hz. An analysis of data collected using the two approaches shows that comparable master curves are obtained. This alternative testing sequence can be used in conjunction with the simple performance test system developed in NCHRP Project 9-29 to develop master curves for structural design.

Revue / Journal Title

Transportation research record    ISSN  0361-1981   CODEN TRREDM 

Source / Source

2005, no 1929 (256 p.)  [Document : 10 p.] (9 ref.), [Notes: Many of these papers were presented at the TRB 84th annual meeting, January 2005], pp. 208-217 [10 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

National Research Council, Washington, DC, ETATS-UNIS  (1974) (Revue)

Mots-clés anglais / English Keywords

Requirement

;

Example

;

Comparative study

;

Temperature effect

;

Pavement analysis

;

Project evaluation

;

Dynamic elastic modulus

;

Structural design

;

Flexible pavement

;

Bituminous concrete

;

Construction materials

;

Mots-clés français / French Keywords

Exigence

;

Exemple

;

Etude comparative

;

Effet température

;

Calcul chaussée

;

Evaluation projet

;

Module dynamique élasticité

;

Calcul construction

;

Chaussée souple

;

Béton hydrocarboné

;

Matériau construction

;

Mots-clés espagnols / Spanish Keywords

Exigencia

;

Ejemplo

;

Estudio comparativo

;

Efecto temperatura

;

Cálculo camino

;

Evaluación proyecto

;

Módulo dinámica elasticidad

;

Cálculo construcción

;

Calzada elástica

;

Hormigón hidrocarbono

;

Material construcción

;

Localisation / Location

INIST-CNRS, Cote INIST : 10459 B, 35400015931208.0250

Nº notice refdoc (ud4) : 18478051



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