Results 171 to 180 of about 2,027 (202)
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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 +2 more
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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 +2 more
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Prediction of Bending Beam Rheometer Test Outputs Using Artificial Neural Networks
Key Engineering Materials, 2019The major objective of this study is to investigate the possibility of using Artificial Neural Networks in creating prediction models capable of estimating Bending Beam Rheometer outputs; namely creep stiffness, and m-value based on test temperature, modifier content; in our case waste vegetable oil, and testing time interval.
Mohammad Fuad Aljarrah +3 more
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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 +3 more
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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 +3 more
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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 +5 more
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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 +5 more
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Role of Bending Beam Rheometer Parameters in Thermal Stress Calculations
Transportation Research Record: Journal of the Transportation Research Board, 2004The 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, 2013Abstract 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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2013
This work uses three asphalt concrete mixtures with decreasing nominal maximum aggregate size (NMAS) to evaluate the validity of using the bending beam rheometer (BBR) to obtain flexural creep modulus of asphalt concrete mixture beams. Flexural creep modulus of asphalt pavement is an important property used to give insight into the cold property ...
Crystal Rae Clendennen, Pedro Romero
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This work uses three asphalt concrete mixtures with decreasing nominal maximum aggregate size (NMAS) to evaluate the validity of using the bending beam rheometer (BBR) to obtain flexural creep modulus of asphalt concrete mixture beams. Flexural creep modulus of asphalt pavement is an important property used to give insight into the cold property ...
Crystal Rae Clendennen, Pedro Romero
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Asphalt Paving Technology, 2020
The current asphalt binder performance grading system employs Dynamic Shear Rheometer (DSR) testing to determine high and intermediate temperature rheological properties. In recent years, the ability to measure DSR instrument compliance has allowed researchers to reliably measure low temperature binder properties as well.
MIRKAT OSHONE +3 more
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The current asphalt binder performance grading system employs Dynamic Shear Rheometer (DSR) testing to determine high and intermediate temperature rheological properties. In recent years, the ability to measure DSR instrument compliance has allowed researchers to reliably measure low temperature binder properties as well.
MIRKAT OSHONE +3 more
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Cold Regions Engineering 2015, 2015
Low-temperature cracking is one of the major causes of pavement distress during the winter season. Research has shown that measuring the flexural stiffness of asphalt mixture beams using a bending beam rheometer (BBR) is a good way to control the low temperature properties of asphalt mixtures.
Yang Li +3 more
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Low-temperature cracking is one of the major causes of pavement distress during the winter season. Research has shown that measuring the flexural stiffness of asphalt mixture beams using a bending beam rheometer (BBR) is a good way to control the low temperature properties of asphalt mixtures.
Yang Li +3 more
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Use of the bending beam rheometer as a low-temperature performance test for asphalt mixtures
2018The Bending Beam Rheometer (BBR) test is a recently developed test that is used to determine low-temperature behavior of asphalt mixtures. By knowing the low-temperature behavior, transverse cracking can be effectively predicted. Transverse cracking is a major cause of distress in wintertime and degrades the pavement structure. Significant research has
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