Experimental study on dynamic modulus of hot recycled asphalt mixtures with high rap content and rejuvenators
Email:
quyet.tv@utc.edu.vn
Keywords:
mechanical empirical, dynamic modulus, stiffness, recycled asphalt mixture, rejuvenator, aging
Abstract
Dynamic modulus (|E*|) is one of the most important input parameters that need to be determined for mechanical empirical pavement design. Dynamic modulus represents the stiffness of asphalt mixture to meet the load bearing capacity of the pavement structure. This paper presents the results of |E*| of recycled asphalt mixtures using 50%RAP and rejuvenators. Two vegetable oils-based rejuvenators (Prephalt and SV) and a petroleum-based rejuvenator (HS1) were used in the recycled mixtures at the contents of 7.5%, 8.3%, and 10.5%, respectively, by the weight of RAP bitumen. The mixtures were subjected to short-term and long-term aging before compacting. Four temperature levels (4°C, 21°C, 37°C, and 54°C) and six frequency levels (0.1 Hz, 0.5 Hz, 1 Hz, 5 Hz, 10 Hz, and 25 Hz) were selected for the dynamic modulus test. The results showed that dynamic modulus |E*| are affected by factors such as temperature, frequency, aging conditions, and rejuvenator types. In addition, the recycled mixture using RAP has a higher |E*| than the mixture without RAP. Three rejuvenators showed effectiveness in reducing the stiffness of mixtures under short and long-term aging conditions compared to the 50%RAP mixture without rejuvenator. Regarding the effect of rejuvenators on |E*|, the recycled mixture using a petroleum-based rejuvenator showed lower aging than the vegetable-based rejuvenator when undergoing long-term agingReferences
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[24]. TCVN 13567-1-2022, Lớp mặt đường bằng hỗn hợp nhựa nóng - Thi công và nghiệm thu - Phần 1: Bê tông nhựa chặt sử dụng nhựa đường thông thường, Tiêu chuẩn Việt Nam, 2022.
[25]. Đề tài DT 2304, Nghiên cứu chế tạo phụ gia tái sinh gốc sinh học trong công nghệ tái chế nóng bê tông nhựa tại trạm trộn, Bộ Giao thông vận tải, 2023.
[26]. TCVN 8820:2011, Hỗn hợp bê tông nhựa nóng - Thiết kế theo phương pháp Marshall, Tiêu chuẩn Việt Nam, 2011.
[27]. AASHTO R30, Standard Practice for Mixture Conditioning of Hot Mix Asphalt (HMA), American Association of State Highway and Transportation Officials, 2012.
[28]. Y.R. Kim, C. Castorena, M. Elwardany, F.Y. Rad, S. Underwood, A. Gundha, P. Gudipudi, M.J. Farrar, R.R. Glaser, Long-Term Aging of Asphalt Mixtures for Performance Testing and Prediction, Transportation Research Board, 2018. https://doi.org/10.17226/24959
[2]. Nguyễn Ngọc Lân, Đào Văn Đông, Nguyễn Quang Phúc, Trương Văn Quyết, Nghiên cứu dự báo tính năng khai thác của kết cấu mặt đường bê tông asphalt tái chế ấm, Tạp Chí Khoa Học Kỹ Thuật Thủy Lợi và Môi Trường, 12 (2021) 157–163.
[3]. AASHTO, Mechanistic-empirical Pavement Design Guide: A Manual of Practice, American Association of State Highway and Transportation Officials, Washinton DC, 2015.
[4]. M.W. Witczak, Mr. Dragos Andrei, W.N. Houston, Guide for the design of new and rehabilitated pavement structures, NCHRP report 1-37A, Transportation Research Board of the National Research Council, Washinton DC, 2000.
[5]. A. Sharma, G.R. Rongmei Naga, P. Kumar, P. Rai, Mix design, development, production and policies of recycled hot mix asphalt: A review, J. Traffic Transp, 9 (2022) 765–794. https://doi.org/10.1016/J.JTTE.2022.06.004
[6]. X. Ai, J. Cao, D. Feng, L. Gao, W. Hu, J. Yi, Performance evaluation of recycled asphalt mixtures with various percentages of RAP from the rotary decomposition process, Constr. Build. Mater, 351 (2022) 126406. https://doi.org/10.1016/j.conbuildmat.2022.126406
[7]. Trương Văn Quyết, Nguyễn Ngọc Lân, Ảnh hưởng của hàm lượng vật liệu mặt đường asphalt cũ đến tính năng kháng nứt và kháng hằn lún vệt bánh xe của bê tông asphalt tái chế nóng, Tạp chí Khoa học Giao thông vận tải, 75 (2024) 1307-1321. https://doi.org/10.47869/tcsj.75.2.8
[8]. T. Ma, H. Wang, X. Huang, Z. Wang, F. Xiao, Laboratory performance characteristics of high modulus asphalt mixture with high-content RAP, Constr. Build. Mater, 101 (2015) 975–982. https://doi.org/10.1016/j.conbuildmat.2015.10.160
[9]. R. Imaninasab, L. Loria-Salazar, A. Carter, Integrated performance evaluation of asphalt mixtures with very high reclaimed asphalt pavement (RAP) content, Constr. Build. Mater, 347 (2022) 128607. https://doi.org/10.1016/j.conbuildmat.2022.128607
[10]. R. Izaks, V. Haritonovs, I. Klasa, M. Zaumanis, Hot Mix Asphalt with High RAP Content, Procedia Eng, 114 (2015) 676–684. https://doi.org/10.1016/j.proeng.2015.08.009
[11]. F. Kaseer, F. Yin, E. Arámbula-Mercado, A. Epps Martin, Stiffness Characterization of Asphalt Mixtures with High Recycled Material Content and Recycling Agents, J. Transp. Res. Board, 2633 (2017) 58–68. https://doi.org/10.3141/2633-08
[12]. M.S. Sondag, B.A. Chadbourn, A. Drescher, Investigation of Recycled Asphalt Pavement (RAP) Mixtures, Center for Transportation Studies, 2014. https://www.cts.umn.edu/publications/report /investigation-of-recycled-asphalt-pavement-rap-mixtures (accessed December 30, 2022)
[13]. NCHRP report 752, Improved Mix Design, Evaluation, and Materials Management Practices for Hot Mix Asphalt with High Reclaimed Asphalt Pavement Content. https://trid.trb.org/view/1253473 (accessed October 8, 2024)
[14]. F. Kaseer, E. Arambula, A. Epps Martin, L. Garcia Cucalon, E. Arámbula-Mercado, J. Epps, Practical tools for optimizing recycled materials content and recycling agent dosage for improved short-and long-term performance of rejuvenated binder blends, Asphalt Paving Technology (2018). https://doi.org/10.12783/aapt2018/33816
[15]. N.H. Tran, L. Ga, A. Taylor, P.E.R. Willis, NCAT Report 12-05 Effect of rejuvenator on performance properties of HMA mixtures with high RAP and RAS contents, (2012).
[16]. Y.R. Kim, C. Castorena, M. Elwardany, F.Y. Rad, S. Underwood, A. Gundha, P. Gudipudi, M.J. Farrar, R.R. Glaser, Long-Term Aging of Asphalt Mixtures for Performance Testing and Prediction, 2017. https://doi.org/10.17226/24959
[17]. F. Yousefi Rad, M.D. Elwardany, C. Castorena, Y.R. Kim, Investigation of proper long-term laboratory aging temperature for performance testing of asphalt concrete, Constr. Build. Mater, 147 (2017) 616–629. https://doi.org/10.1016/j.conbuildmat.2017.04.197
[18]. H. Ziari, A. Moniri, P. Bahri, Y. Saghafi, The effect of rejuvenators on the aging resistance of recycled asphalt mixtures, Constr. Build. Mater, 224 (2019) 89–98. https://doi.org/10.1016/j.conbuildmat.2019.06.181
[19]. N.F. Saleh, B. Keshavarzi, F. Yousefi Rad, D. Mocelin, M. Elwardany, C. Castorena, B.S. Underwood, Y.R. Kim, Effects of aging on asphalt mixture and pavement performance, Constr. Build. Mater, 258 (2020) 120309. https://doi.org/10.1016/j.conbuildmat.2020.120309
[20]. F. Yin, F. Kaseer, E. Arámbula-Mercado, A. Epps Martin, Characterising the long-term rejuvenating effectiveness of recycling agents on asphalt blends and mixtures with high RAP and RAS contents, Road Mater. Pavement Des, 18 (2017) 273–292. https://doi.org/10.1080/14680629.2017.1389074
[21]. B.F. Bowers, B. Huang, X. Shu, B.C. Miller, Investigation of Reclaimed Asphalt Pavement blending efficiency through GPC and FTIR, Constr. Build. Mater, 50 (2014) 517–523. https://doi.org/10.1016/j.conbuildmat.2013.10.003
[22]. L.N. Nguyen, V.Q. Truong, D. Van Dao, M.H. Nguyen, T. Tran, Effects of rejuvenators and aging conditions on the properties of blended bitumen and the cracking behavior of hot asphalt mixtures with a high RAP content, J. Mater. Des. Appl, 238 (2024) https://doi.org/10.1177/1464420724123
[23]. AASHTO TP 62, Standard Method of Test for Determining Dynamic Modulus of Hot Mix Asphalt (HMA), American Association of State Highway and Transportation Officials, 2007.
[24]. TCVN 13567-1-2022, Lớp mặt đường bằng hỗn hợp nhựa nóng - Thi công và nghiệm thu - Phần 1: Bê tông nhựa chặt sử dụng nhựa đường thông thường, Tiêu chuẩn Việt Nam, 2022.
[25]. Đề tài DT 2304, Nghiên cứu chế tạo phụ gia tái sinh gốc sinh học trong công nghệ tái chế nóng bê tông nhựa tại trạm trộn, Bộ Giao thông vận tải, 2023.
[26]. TCVN 8820:2011, Hỗn hợp bê tông nhựa nóng - Thiết kế theo phương pháp Marshall, Tiêu chuẩn Việt Nam, 2011.
[27]. AASHTO R30, Standard Practice for Mixture Conditioning of Hot Mix Asphalt (HMA), American Association of State Highway and Transportation Officials, 2012.
[28]. Y.R. Kim, C. Castorena, M. Elwardany, F.Y. Rad, S. Underwood, A. Gundha, P. Gudipudi, M.J. Farrar, R.R. Glaser, Long-Term Aging of Asphalt Mixtures for Performance Testing and Prediction, Transportation Research Board, 2018. https://doi.org/10.17226/24959
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Received
31/10/2024
Revised
25/11/2024
Accepted
11/12/2024
Published
15/12/2024
Type
Research Article
How to Cite
Trương Văn, Q., Nguyễn Ngọc, L., & Đào Văn, Đông. (1734195600). Experimental study on dynamic modulus of hot recycled asphalt mixtures with high rap content and rejuvenators. Transport and Communications Science Journal, 75(9), 2371-2384. https://doi.org/10.47869/tcsj.75.9.11
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