[1] Yang Jun, Gong Minghui, Wang Xiaoting, Chen Xianhua, et al. Observation and characterization of asphalt microstructureby atomic force microscopy [J]. Journal of Southeast University (English Edition), 2014, 30 (3): 353-357. [doi:10.3969/j.issn.1003-7985.2014.03.018]
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Observation and characterization of asphalt microstructureby atomic force microscopy(
)
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 30
- Issue:
- 2014 3
- Page:
- 353-357
- Research Field:
- Materials Sciences and Engineering
- Publishing date:
- 2014-09-30
Info
- Title:
- Observation and characterization of asphalt microstructureby atomic force microscopy
- Author(s):
- Yang Jun1; Gong Minghui1; Wang Xiaoting2; Chen Xianhua1; Wang Xiao1; Wang Zheng1
-
1School of Transportation, Southeast University, Nanjing 210096, China
2School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China
- PACS:
- TU571
- DOI:
- 10.3969/j.issn.1003-7985.2014.03.018
- Abstract:
- The microstructure of asphalt is investigated by atomic force microscopy(AFM). In order to analyze the impacts of asphalt types on microstructures, two neat asphalts with different penetration grades(50# and 70#)and one styrene-butadiene-styrene(SBS)modified asphalt are chosen. The influence of short-term aging is also studied. Based on the knowledge of asphalt’s microproperties, the relationship between microstructures and healing property is analyzed. The results indicate that the microstructures of three asphalts are quite different and the effects of aging on the surface characteristics for different asphalts are also different. It is proposed that the bee structure is a type of wax crystal and it has a close relationship with the “bridge-healing” mechanism. The findings may reveal the formation mechanism of microstructure and the healing property for asphalts.
References:
[1] Loeber L, Sutton O, Morel J, et al. New direct observations of asphalt and asphalt binders by scanning electron microscopy and atomic force microscopy[J]. Journal of Microscopy, 1996, 182(1): 32-39.
[2] Masson J F, Leblond V, Margeson J. Bitumen morphologies by phase-detection atomic force microscopy[J]. Journal of Microscopy, 2006, 221(1): 17-29.
[3] Wu Shaopeng, Zhu Guojun, Chen Zheng, et al. Laboratory research on rheological behavior and characterization of ultraviolet aged asphalt[J]. Journal of Central South University of Technology, 2008, 15(1): 369-373.
[4] De Moraes M B, Pereira R B, Simao R A, et al. High temperature AFM study of CAP 30/45 pen grade bitumen[J]. Journal of Microscopy, 2010, 239(1): 46-53.
[5] Schmets A, Kringos N, Pauli T, et al. On the existence of wax-induced phase separation in bitumen[J]. International Journal of Pavement Engineering, 2010, 11(6): 555-563.
[6] Pauli T, Grimes R W, Beemer A G, T, et al. Morphology of asphalts, asphalt fractions and model wax-doped asphalts studied by atomic force microscopy[J]. International Journal of Pavement Engineering, 2011, 12(4): 291-309.
[7] Masson J F, Leblond V, Margeson J, et al. Low-temperature bitumen stiffness and viscous paraffinic nano- and micro-domains by cryogenic AFM and PDM[J]. Journal of Microscopy, 2007, 227(3): 191-202.
[8] Jiang Qingzhe, Song Zhaozheng, Ge Jijiang, et al. Effects of pour point depressants on crystal lattice parameters of waxes[J]. Journal of China University of Petroleum, 2006, 30(1): 118-122.(in Chinese)
[9] Zhang Hong, Shen Benxian. Effect of wax crystal morphology on the pour point decline of crude oil[J]. Acta Petrolei Sinica: Petroleum Processing Section, 2006, 22(5): 74-79.(in Chinese)
[10] Gaskin Joshua. On bitumen microstructure and the effects of crack healing [D]. Nottingham: University of Nottingham, 2013.
Memo
- Memo:
-
Biography: Yang Jun(1968—), female, doctor, professor, yangjun@seu.edu.cn.
Foundation item: The Ph.D. Programs Foundation of Ministry of Education of China(No.20120092110053).
Citation: Yang Jun, Gong Minghui, Wang Xiaoting, et al. Observation and characterization of asphalt microstructure by atomic force microscopy[J].Journal of Southeast University(English Edition), 2014, 30(3):353-357.[doi:10.3969/j.issn.1003-7985.2014.03.018]