[1] Chen Zhiming, Kang Yang, Min Zhaohui, Huang Wei, et al. Preparation and characterization of epoxy asphalt binderfor pavement of steel deck bridge [J]. Journal of Southeast University (English Edition), 2006, 22 (4): 553-558. [doi:10.3969/j.issn.1003-7985.2006.04.023]
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Preparation and characterization of epoxy asphalt binderfor pavement of steel deck bridge(
)
钢箱梁桥铺装用环氧沥青材料制备和表征
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 22
- Issue:
- 2006 4
- Page:
- 553-558
- Research Field:
- Traffic and Transportation Engineering
- Publishing date:
- 2006-12-30
Info
- Title:
- Preparation and characterization of epoxy asphalt binderfor pavement of steel deck bridge
- 钢箱梁桥铺装用环氧沥青材料制备和表征
- Author(s):
- Chen Zhiming1, Kang Yang1, Min Zhaohui2, Huang Wei2
-
1 School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China
2 School of Transportation, Southeast University, Nanjing 210096, China
- Keywords:
- epoxy asphalt; preparation; characterization
- PACS:
- U443.33
- DOI:
- 10.3969/j.issn.1003-7985.2006.04.023
- Abstract:
- A kind of thermosetting asphalt binder designated as epoxy asphalt, which is composed of two components: maleated asphalt with curing agents and accelerant of epoxy resin and epoxy resin, was prepared.Its paving feasibility and concrete performances were investigated using Brookfield viscosimeter, direct tensile test(DTT), Marshall testing and the MTS 810 hydraulic servos-system, respectively.Although only 50% to 60% of added maleic anhydride(MAH)reacted with the base asphalt irreversibly(probably by Diels-Alder mechanism), the curing rate, rupture elongation and tensile strength of maleated epoxy asphalt were enhanced more evidently than those of unmaleated epoxy asphalt.As a result, an epoxy asphalt made from 4% MAH modified asphalt and other curing agents was featured to have an average rupture elongation of 281.9%, an average tensile strength of 2.63 MPa, and the Marshall stability of its cured concrete reached 37.0 kN, while that of uncured concrete was 10.2 kN and the combined beam of fatigue test was still found to behave well after 12×106 cycles load.
- 制备两组分的热固性环氧沥青, 其中一个组分是顺酐化沥青、环氧树脂的固化剂和促进剂, 另外一个组分是环氧树脂.分别使用Brookfild粘度计、拉伸实验和MTS研究了沥青的铺装适用性和混凝土性能.结果表明:尽管加入的顺酐仅有50%~60%与基础沥青发生了反应, 但是与未对沥青进行顺酐化比较, 其固化速率、断裂延伸率和抗拉强度等都有显著的提高.4%顺酐改性的沥青和固化剂结合与环氧树脂固化后具有平均断裂延伸率281.9%, 平均强度2.63 MPa, 固化混凝土的Marshell稳定度37.0 kN, 未固化混凝土的Marshell稳定度10.2 kN, 耐疲劳实验1 200万次试件无破坏.
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Memo
- Memo:
- Biography: Chen Zhiming(1963—), male, doctor, professor, chenzm@seu.edu.cn.