Research on the effects of sulfur on characteristics of sulfur bituminous binder (SBB) and hot mix asphalt – sulfur (HMAS)
Email:
trangnt@utt.edu.vn
Từ khóa:
Bitumen, sulfur, sulfur bituminous binder, hot mix asphalt, hot mix asphalt sulfur
Tóm tắt
Sulfur in SBB has been found to occur in three different forms: (1) chemically bonded, (2) dissolved in bitum, and (3) crystalline sulfur which generally exists in the form of discrete tiny particles dispersed in asphalt depending on sulfur content was added to bitumen, mixing temperature and time of a given mixture. At extraction temperatures (20 and 50oC), sulfur crystallizes and acts as a filling agent. It organizes the structure of the asphalt concrete and increases the thermal stability, hardness, and resistance of asphalt concrete to rutting. Due to the progressive restructuring of the modified sulfur in the mixture, the paving mixture made with modified sulfur takes several days to develop its final strength. This paper investigates the effect of time on the properties of SBB and HMAS. Experimental results show that by the time, the crystallization of sulfur in SBB has effects on SBB properties (penetration, softening temperature) and HMAS properties (Marshall stability, Marshall flow)Tài liệu tham khảo
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[2]. J. C. Nicholls, Review of shell thiopave sulfur - extended asphalt modifier, TRL Report TRL672, 2009.
[3]. Federal Highway Administration, An Alternative Asphalt Binder, Sulfur Extended Asphalt (SEA), FHWA-HIF-12-037, 2012. https://www.fhwa.dot.gov/pavement/asphalt/pubs/hif12037.pdf
[4]. D. Timm et al., Evaluation Of Mixture Performance and Structural Capacity of Pavements Using Shell Thiopave, Report No. NCAT 09-05, 2009. https://www.eng.auburn.edu/research/centers/ncat/files/technical-reports/rep09-05.pdf
[5]. V.A. Gladkikh et al., Eco–friendly high-performance pavement materials, IIOABJ, 2016, pp. 453-458. https://www.iioab.org/articles/IIOABJ_7.S1_453-458-1.pdf
[6]. M. Al-Mehthel et al., Sulfur extended asphalt as a major outlet for sulfur that outperformed other asphalt mixes in the Gulf, The Sulphur Institute’s (TSI) Sulphur World Symposium, in Doha, Qatar, 2010, pp. 12-15. https://www.sulphurinstitute.org/pub/?id=a03b8cac-d39b-e0e4-e48e-7e6cc11e995c
[7]. J.P. Mahoney et al., Sulfur Extended Asphalt Laboratory Investigation - Mixture Characterization, Report No WA-RD 53.2, 1982. https://www.wsdot.wa.gov/research/reports/fullreports/053.2.pdf
[8]. D. J. Strickland et al., Performance properties of sulphur-extended asphalt mixtures with SEAM, Permanent International Association of Road Congresses (PIARC) World Road Congress, Paris, France, 2007, pp. 17-21. https://www.piarc.org/en/activities/World-Road-Congresses-World-Road-Association/Congress-Proceedings
[9]. A. M. O. Mohamed, M. M. El Gamal, Sulfur concrete for the construction industry, UAE University, Al Ain, United Arab Emirates, 2010.
[10]. I. Gawel, Chapter 19 Sulphur-Modified Asphalts, Developments in Petroleum Science, 40 (2000) 515-535. https://doi.org/10.1016/S0376-7361(09)70290-0
[11]. R. Djimаsbе et al., Research of the technology for the production of modified sulfur bituminous binders, 2018. https://doi.org/10.20914/2310-1202-2018-2-270-274
[12]. The Shell Bitumen Handbook, 6th edition, 2015.
Tải xuống
Chưa có dữ liệu thống kê
Nhận bài
05/10/2020
Nhận bài sửa
30/10/2020
Chấp nhận đăng
06/11/2020
Xuất bản
25/01/2021
Chuyên mục
Công trình khoa học
Kiểu trích dẫn
Nguyen Thu, T., Tran Ngoc, H., Pham Huy, K., Bui Xuan, C., & Bui Ngoc, K. (7600). Research on the effects of sulfur on characteristics of sulfur bituminous binder (SBB) and hot mix asphalt – sulfur (HMAS). Tạp Chí Khoa Học Giao Thông Vận Tải, 72(1), 33-45. https://doi.org/10.47869/tcsj.72.1.5
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155
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253
