Results 81 to 90 of about 262 (121)

Dynamic shear rheometer testing and mechanistic conversion to predict bending beam rheometer low temperature behavior of bituminous binder

Construction and Building Materials, 2021
Abstract The low-temperature rheology of bituminous binders is of great interest because low-temperature cracking is one of the primary failure modes of asphaltic pavements in cold-climate region. Low temperature binder characterization/grading has been primarily conducted using the bending beam rheometer (BBR) which requires much binder for specimen
Santosh Reddy Kommidi, Yong-Rak Kim
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Asphalt Mixture Beams Used in Bending Beam Rheometer for Quality Control

Transportation Research Record: Journal of the Transportation Research Board, 2012
This paper introduces the use of asphalt mixture beams in the bending beam rheometer (BBR) for quality control with a project in Utah as a case study. A good solution for quality control, the BBR test can be performed by materials laboratory staff at highway agencies and private materials laboratories because it is reasonably priced, is rugged-tested ...
Chun-Hsing Ho, Pedro Romero
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Extended Creep Recovery via Oscillatory Shear and Bending Beam Rheometers

AIP Conference Proceedings, 2008
Relaxation and retardation spectra are often used to describe the linear viscoelastic properties of polymer melts, asphalts, and other viscoelastic materials, since the spectra contain sufficient information from which other linear material functions can be easily calculated.
Igor B. Kazatchkov, Jiri Stastna, Ludo Zanzotto, Albert Co, Gary L. Leal, Ralph H. Colby, A. Jeffrey Giacomin   +6 more
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The Development of the Bending Beam Rheometer; Basics and Critical Evaluation of the Rheometer

1995
The bending beam rheometer is proposed by the Strategic Highway Research Program (SHRP) for direct measurements of the rheological properties of asphalts at the lowest pavement temperatures. The purpose of this paper is to present the basic concepts upon which the rheometer was developed, to describe the testing procedure and the important procedural ...
HU Bahia, DA Anderson
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Recommendations for Seal Treatment Rejuvenation Specifications Based on Bending Beam Rheometer Testing of Mixture Beams

Transportation Research Record: Journal of the Transportation Research Board, 2015
Recently, use of pavement preservation technologies, such as bituminous seal treatments, has increased. Seal treatments are often used to rejuvenate aged asphalt pavements and can decrease permeability and retard oxidation, cracking, and raveling. Many factors affect rejuvenation, and current specifications governing how rejuvenation is characterized ...
Ben C. Cox, Isaac L. Howard, Walter S. Jordan   +2 more
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The Flexural Strength of Asphalt Mixtures Using the Bending Beam Rheometer

2012
Asphalt mixture creep stiffness and strength are needed in the low temperature algorithm of the AASHTO Mechanistic Empirical Pavement Design Guide to predict low temperature performance. A procedure for obtaining creep stiffness by testing thin mixture beams with a Bending Beam Rheometer was previously developed at University of Minnesota.
M. J. Turos, A. Cannone Falchetto, TEBALDI, Gabriele, M. O. Marasteanu   +3 more
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Characterising emulsion effects on aged asphalt concrete surfaces using Bending Beam Rheometer mixture beams

International Journal of Pavement Engineering, 2014
A function of asphalt emulsions is often to rejuvenate the surface of an aged asphalt concrete roadway. However, it is unclear as to the effectiveness of different types of asphalt emulsions, as most current testing is empirical and does not give an indication of field performance.
Andrew Braham, Isaac L. Howard, Jason Barham, Ben C. Cox   +3 more
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Role of Bending Beam Rheometer Parameters in Thermal Stress Calculations

Transportation Research Record: Journal of the Transportation Research Board, 2004
The development of the Strategic Highway Research Program lowtemperature binder specifications was based on the observation that asphalt mixture creep stiffness at 2 h correlated well with instances of transverse cracking. With the correlation extended to asphalt binder stiffness and with time-temperature superposition, a maximum stiffness value was ...
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Thermal Cracking Potential of High RAP-WMA Evaluated With Bending Beam Rheometer Mixture Beam Test

Journal of Testing and Evaluation, 2013
Abstract In recent years, increasing cost of the raw materials for asphalt paving has generated interest in using greater quantities of reclaimed asphalt pavement (RAP). During the same period, development of warm-mix asphalt (WMA) technology has allowed use of lower production temperatures that can reduce the amount of short-term aging ...
Jesse D. Doyle, Isaac L. Howard
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Evaluating the Short-term Performance of Spray-on Rejuvenators using a Modified Bending Beam Rheometer Test Methodology

Transportation Research Record: Journal of the Transportation Research Board, 2023
Spray-on rejuvenation is a preventive maintenance strategy that highway agencies use to prolong the service life of asphalt pavements. This process involves applying rejuvenators on the surface of asphalt pavement to reverse the stiffening caused by aging.
Poornachandra Vaddy, Tanzila Islam, Mohammed Emin Kutay, Michael Vrtis, Syed Waqar Haider, Bora Cetin   +5 more
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