About this Research Topic

Manuscript Submission Deadline 23 November 2022

Rutting has been identified as one of the major pavement distresses. Pavement researchers and practitioners have been working on improving the asphalt mix design to prevent or mitigate possible rutting on asphalt pavements. In terms of asphalt binder, an effective means is to improve the high-temperature performance of asphalt binder by using various modifiers. Modifiers widely used in recent years include polymers and crumb rubber, and lots of new modification techniques are under investigation. In addition to asphalt binder modification, it is equally important to improve the test method for better characterization pf the high-temperature performance of asphalt binder. The multiple stress creep recovery (MSCR) test has been adopted in the specifications in lieu of the DSR test to overcome the deficiencies of the Superpave rutting parameter. Despite the success of the MSCR test, continued efforts are being made to refine the MSCR test protocol and the evaluation indicators.

This Special Issue is dedicated to recent advances in improving and characterizing the high-temperature performance of asphalt binder. As an essential part of asphalt mixture, the asphalt binder performance has a great effect on the asphalt mixture performance. The following objectives are proposed in this Special Issue:
1. Identification of new modification techniques that can effectively enhance the high-temperature performance of asphalt binder in a cost-effective and sustainable manner.
2. Modification of the MSCR test in terms of test protocol and analysis method to better characterize the high-temperature performance of asphalt binder.
3. Development of new test methods and/or performance indicators for better evaluation of the high-temperature performance of asphalt binder.

Rutting is a major disease occurring in asphalt pavements, which can reduce the driving comfort and shorten the pavement service life. It is of great importance to enhance the rutting resistance of asphalt mixture. This Special Issue focuses on recent developments in improving and characterizing the high-temperature performance of asphalt binder. Themes in this Special Issue include but are not limited to:
1. New types of asphalt binder modifiers for asphalt binder performance improvement.
2. Investigation of the effect of asphalt binder modification on asphalt mixture performance.
3. Modification of the MSCR test protocol, e.g., the stress level, the number of creep and recovery cycles, and the creep and recovery time.
4. Refinement of the MSCR analysis method, e.g., mechanistic modeling of creep and recovery strain response.
5. Development of novel test methods and/or performance indicators.
It is our honor to invite you to submit a research article to this Special Issue.

Keywords: asphalt binder, high-temperature performance, modifier, multiple stress creep recovery, zero shear viscosity, Superpave rutting parameter


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

Rutting has been identified as one of the major pavement distresses. Pavement researchers and practitioners have been working on improving the asphalt mix design to prevent or mitigate possible rutting on asphalt pavements. In terms of asphalt binder, an effective means is to improve the high-temperature performance of asphalt binder by using various modifiers. Modifiers widely used in recent years include polymers and crumb rubber, and lots of new modification techniques are under investigation. In addition to asphalt binder modification, it is equally important to improve the test method for better characterization pf the high-temperature performance of asphalt binder. The multiple stress creep recovery (MSCR) test has been adopted in the specifications in lieu of the DSR test to overcome the deficiencies of the Superpave rutting parameter. Despite the success of the MSCR test, continued efforts are being made to refine the MSCR test protocol and the evaluation indicators.

This Special Issue is dedicated to recent advances in improving and characterizing the high-temperature performance of asphalt binder. As an essential part of asphalt mixture, the asphalt binder performance has a great effect on the asphalt mixture performance. The following objectives are proposed in this Special Issue:
1. Identification of new modification techniques that can effectively enhance the high-temperature performance of asphalt binder in a cost-effective and sustainable manner.
2. Modification of the MSCR test in terms of test protocol and analysis method to better characterize the high-temperature performance of asphalt binder.
3. Development of new test methods and/or performance indicators for better evaluation of the high-temperature performance of asphalt binder.

Rutting is a major disease occurring in asphalt pavements, which can reduce the driving comfort and shorten the pavement service life. It is of great importance to enhance the rutting resistance of asphalt mixture. This Special Issue focuses on recent developments in improving and characterizing the high-temperature performance of asphalt binder. Themes in this Special Issue include but are not limited to:
1. New types of asphalt binder modifiers for asphalt binder performance improvement.
2. Investigation of the effect of asphalt binder modification on asphalt mixture performance.
3. Modification of the MSCR test protocol, e.g., the stress level, the number of creep and recovery cycles, and the creep and recovery time.
4. Refinement of the MSCR analysis method, e.g., mechanistic modeling of creep and recovery strain response.
5. Development of novel test methods and/or performance indicators.
It is our honor to invite you to submit a research article to this Special Issue.

Keywords: asphalt binder, high-temperature performance, modifier, multiple stress creep recovery, zero shear viscosity, Superpave rutting parameter


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

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