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Jhenyffer Oliveira, Tianhao Yan, M. Turos, D. Ghosh, Dave Deusen, M. Marasteanu (2019)
Simple Method to Evaluate Strength and Relaxation Properties of Asphalt Binders at Low TemperatureTransportation Research Record, 2673
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Low-temperature isothermal physical hardening of asphalt cements
M. Marasteanu, D. Ghosh, A. Falchetto, M. Turos (2017)
Testing protocol to obtain failure properties of asphalt binders at low temperature using creep compliance and stress-controlled strength testRoad Materials and Pavement Design, 18
M. Marasteanu, David Anerson (2000)
COMPARISON OF MODULI FOR ASPHALT BINDERS OBTAINED FROM DIFFERENT TEST DEVICES, 69
L. Struik (1978)
Physical aging in amorphous polymers and other materials
A. Falchetto, M. Turos, M. Marasteanu (2012)
Investigation on asphalt binder strength at low temperaturesRoad Materials and Pavement Design, 13
D. Anderson, T. Kennedy (1993)
DEVELOPMENT OF SHRP BINDER SPECIFICATION (WITH DISCUSSION), 62
M. Marasteanu, A. Falchetto, M. Turos, J. Le (2012)
Development of a Simple Test to Determine the Low Temperature Strength of Asphalt Mixtures and BindersNCHRP-IDEA Program Project Final Report
A. Basu, M. Marasteanu, S. Hesp (2003)
Time-Temperature Superposition and Physical Hardening Effects in Low-Temperature Asphalt Binder GradingTransportation Research Record, 1829
Standard method of test for determining the flexural creep stiffness of asphalt binder using the bending beam rheometer ( BBR )
(1994)
Development of Direct Tension Test Method to Characterize Failure Properties of Asphalt Cements
(2008)
Smooth noise robust differentiators
Selecting asphalt binders that have good cracking resistance at low temperatures is the first step in designing asphalt mixtures for durable asphalt pavements in cold regions. To evaluate low-temperature cracking resistance of binders, rheological properties (creep stiffness and m-value), and fracture properties (failure stress and strain) are required. Recently, a new strength test was developed to measure the fracture properties of binders using a modified BBR (Bending Beam Rheometer), called BBR-Pro. In this paper, we investigate the idea of using the BBR strength test to also obtain rheological properties. We performed strength tests at different loading rates and verified the assumption of linear viscoelasticity (LVE) condition of binders at these loading rates. We used analytical and numerical methods to obtain creep compliance from strength test experimental data and compared the results to experimental creep compliance data. We have found that both methods predict creep compliance and creep stiffness values similar to the experimental results, whereas the numerical method is more accurate than the analytical method for obtaining the m\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$m$\end{document}-value. We also found that the BBR strength test performed using the original loading rate is too short to accurately predict rheological properties for 240 s. We show that by reducing the loading rate we achieve good estimation of creep compliance.
Mechanics of Time-Dependent Materials – Springer Journals
Published: Dec 1, 2021
Keywords: BBR strength test; Rheological properties; Linear viscoelasticity; Loading rate
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