Design of Asphalt Mixtures Containing RAP by Balanced Mix Design (BMD) Method
The mix design of asphalt mixtures is one of the most important factors that affect their performance. Given the importance of the performance assessment of asphalt mixtures and volumetric parameters, a new method called balanced mix design (BMD) had been created. This method considers volumetric pa...
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| Format: | Article |
| Language: | fas |
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University of Qom
2023-02-01
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| Series: | پژوهشهای زیرساختهای عمرانی |
| Subjects: | |
| Online Access: | https://cer.qom.ac.ir/article_2215_03918c669a7157249860b5c3682dc129.pdf |
| _version_ | 1797233000465825792 |
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| author | Hassan ziari Mojtaba Hajiloo |
| author_facet | Hassan ziari Mojtaba Hajiloo |
| author_sort | Hassan ziari |
| collection | DOAJ |
| description | The mix design of asphalt mixtures is one of the most important factors that affect their performance. Given the importance of the performance assessment of asphalt mixtures and volumetric parameters, a new method called balanced mix design (BMD) had been created. This method considers volumetric parameters as the initial criterion. The ultimate criterion to determine an appropriate range for the optimum bitumen percentage is the proper rutting and cracking performance of the asphalt mixture. In this study, five different asphalt mixture designs were first investigated using the Superpave method, using low (25%) and high (50%) percentages of RAPs and vegetable oil as a recycling agent. Then the mixtures were designed using the BMD method considering three different bitumen contents for each mixture. The Hamburg Wheel Tracking and I-FIT tests were performed to assess the rutting and cracking resistance, respectively. The results of this study show that the optimum binder content (OBC) obtained by BMD method is different from the Superpave method. The highest discrepancies are observed when 25% and 50% of the RAP materials are used without rejuvenator. In these mixtures, the results show that the OBC obtained by the BMD method compared to the Superpave method for mixtures containing 25 and 50% RAP without rejuvenator increased by 9.56 and 22.18%, respectively. In terms of performance, the percentage of OBC by the Superpave method is not suitable for mixtures containing RAP and rejuvenator. |
| first_indexed | 2024-04-24T16:09:13Z |
| format | Article |
| id | doaj.art-b87b13f816c540ebb6d06a83f76143b3 |
| institution | Directory Open Access Journal |
| issn | 2783-140X |
| language | fas |
| last_indexed | 2024-04-24T16:09:13Z |
| publishDate | 2023-02-01 |
| publisher | University of Qom |
| record_format | Article |
| series | پژوهشهای زیرساختهای عمرانی |
| spelling | doaj.art-b87b13f816c540ebb6d06a83f76143b32024-03-31T19:58:49ZfasUniversity of Qomپژوهشهای زیرساختهای عمرانی2783-140X2023-02-01828510210.22091/cer.2022.7959.13662215Design of Asphalt Mixtures Containing RAP by Balanced Mix Design (BMD) MethodHassan ziari0Mojtaba Hajiloo1Professor ,Iran University of Science and Technology, Tehran, IranPhD student, Iran University of Science and Technology, Tehran, IranThe mix design of asphalt mixtures is one of the most important factors that affect their performance. Given the importance of the performance assessment of asphalt mixtures and volumetric parameters, a new method called balanced mix design (BMD) had been created. This method considers volumetric parameters as the initial criterion. The ultimate criterion to determine an appropriate range for the optimum bitumen percentage is the proper rutting and cracking performance of the asphalt mixture. In this study, five different asphalt mixture designs were first investigated using the Superpave method, using low (25%) and high (50%) percentages of RAPs and vegetable oil as a recycling agent. Then the mixtures were designed using the BMD method considering three different bitumen contents for each mixture. The Hamburg Wheel Tracking and I-FIT tests were performed to assess the rutting and cracking resistance, respectively. The results of this study show that the optimum binder content (OBC) obtained by BMD method is different from the Superpave method. The highest discrepancies are observed when 25% and 50% of the RAP materials are used without rejuvenator. In these mixtures, the results show that the OBC obtained by the BMD method compared to the Superpave method for mixtures containing 25 and 50% RAP without rejuvenator increased by 9.56 and 22.18%, respectively. In terms of performance, the percentage of OBC by the Superpave method is not suitable for mixtures containing RAP and rejuvenator.https://cer.qom.ac.ir/article_2215_03918c669a7157249860b5c3682dc129.pdfbalanced mix design (bmd)reclaimed asphalt pavements (raps)rejuvenator |
| spellingShingle | Hassan ziari Mojtaba Hajiloo Design of Asphalt Mixtures Containing RAP by Balanced Mix Design (BMD) Method پژوهشهای زیرساختهای عمرانی balanced mix design (bmd) reclaimed asphalt pavements (raps) rejuvenator |
| title | Design of Asphalt Mixtures Containing RAP by Balanced Mix Design (BMD) Method |
| title_full | Design of Asphalt Mixtures Containing RAP by Balanced Mix Design (BMD) Method |
| title_fullStr | Design of Asphalt Mixtures Containing RAP by Balanced Mix Design (BMD) Method |
| title_full_unstemmed | Design of Asphalt Mixtures Containing RAP by Balanced Mix Design (BMD) Method |
| title_short | Design of Asphalt Mixtures Containing RAP by Balanced Mix Design (BMD) Method |
| title_sort | design of asphalt mixtures containing rap by balanced mix design bmd method |
| topic | balanced mix design (bmd) reclaimed asphalt pavements (raps) rejuvenator |
| url | https://cer.qom.ac.ir/article_2215_03918c669a7157249860b5c3682dc129.pdf |
| work_keys_str_mv | AT hassanziari designofasphaltmixturescontainingrapbybalancedmixdesignbmdmethod AT mojtabahajiloo designofasphaltmixturescontainingrapbybalancedmixdesignbmdmethod |