碳纳米管改性沥青混合料低温裂缝扩展分析

doi:10.11896/cldb.22030145

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Abstract The effect of carbon nanotubes on the low-temperature performance of asphalt mixtures with different amounts of carbon nanotube modified asphalt mixture was studied by cleavage test and trabecular shear fatigue test. And the finite element model of carbon nanotube modified asphalt mixture pavement was established by Abaqus to analyze the crack extension behavior in terms of stress intensity factor, crack energy release rate, crack tip displacement, etc. The results show that: (1) the addition of carbon nanotubes improves the low-temperature crack resis-tance of asphalt mixtures, particularly its early crack resistance. (2) The addition of carbon nanotubes reduces the expansion rate of tensile (type Ⅰ) cracks and promotes the expansion of shear type (Ⅱ) cracks, but the shear force generated by type Ⅱ cracks is much less than the tensile crack strength of carbon nanotubes, which is not enough to make the cracks continue to expand. Overall, the addition of carbon nanotubes can effectively inhibit the expansion of cracks on asphalt pavement. (3) The higher the amount of carbon nanotube doping, the greater the fracture release energy. The carbon nanotube can weaken or absorb the external energy of the asphalt mixture to a certain extent, play a role in dissipating energy, limit the expansion of the fracture tip displacement, and make the asphalt mixture have better low-temperature crack resistance.

Key words： road engineering carbon nanotubes low-temperature crack resistance stress intensity factor energy release rate Abaqus finite element model

Published: 25 October 2023 Online: 2023-10-19

CLC number:

U416

Fund:National Natural Science Foundation of China (51369010), Guangxi Science and Technology Base and Talent Special Project (AD19110085), and Guangxi Key Laboratory of Geotechnical Mechanics and Engineering (2018-A-01).

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	Articles by authors
	LUAN Liqiang
	WEN Shuangshou
	YU Hede
	REN Junying

Cite this article:

LUAN Liqiang,WEN Shuangshou,YU Hede, et al. Analysis of Low-temperature Crack Expansion of Carbon Nanotube-modified Asphalt Mixes[J]. Materials Reports, 2023, 37(20): 22030145-7.

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http://www.mater-rep.com/EN/10.11896/cldb.22030145 OR http://www.mater-rep.com/EN/Y2023/V37/I20/22030145

1 Zheng J L, Yu H Y, Liu P F, et al. China Journal of Highway and Transport, 2020, 33(10), 1(in Chinese).
郑健龙, 于华洋, 刘鹏飞, 等. 中国公路学报, 2020, 33(10), 1.
2 Chen F, Zhang L Y, Feng J L, et al. Materials Reports, 2021, 35(S2), 127(in Chinese).
陈飞, 张林艳, 封基良, 等. 材料导报, 2021, 35(S2), 127.
3 Li X J, Marasteanu M O, Kvasnak A, et al. Journal of Materials in Civil Engineering, 2010, 22(2), 145.
4 Liao H. Investigation on Properties and Micro Structuers of MWCNTs Modified Bitumen. Master’s Thesis, Southeast University, 2018(in Chinese).
廖辉. 多壁碳纳米管改性沥青性能与微观结构研究. 硕士学位论文, 东南大学, 2018.
5 Cao R M, Chen X B, Chen X H. Journal of Jiangsu University(Natural Science Edition), 2020, 41(4), 473(in Chinese).
曹睿明, 陈小兵, 陈先华. 江苏大学学报(自然科学版), 2020, 41(4), 473.
6 Zhu H R, Wei J M, Gong M H, et al. Journal of Petroleum Processing, 2017, 33(2), 386(in Chinese).
朱浩然, 魏建明, 龚明辉, 等. 石油学报(石油加工), 2017, 33(2), 386.
7 Xue Z H, Fan X H. New Building Materials, 2021, 48(6), 106(in Chinese).
薛振华, 樊兴华. 新型建筑材料, 2021, 48(6), 106.
8 Xiao X L. Study on carbon nanotube/SBS composite modified asphalt and mixture properties. Master’s Thesis, Changsha University of Science and Technology, 2017(in Chinese).
肖学良. 碳纳米管/SBS复合改性沥青及混合料性能研究. 硕士学位论文, 长沙理工大学, 2017.
9 Yang Q. Study on mechanical properties of carbon nanotube-enhanced asphalt mixtures. Master’s Thesis, Zhejiang University, 2015(in Chinese).
杨骞. 碳纳米管增强沥青混合料的力学性能研究. 硕士学位论文, 浙江大学, 2015.
10 Sun Q Y. Rheological properties of carbon nanotubes/SBS composite modified bitumen. Master’s Thesis, Chang’an University, 2020(in Chinese).
孙启宇. 碳纳米管/SBS复合改性沥青流变性质研究. 硕士学位论文, 长安大学, 2020.
11 Du J H, Ren D Y, Ai C F, et al. Construction and Building Materials, 2021, 290
12 Song W M, Xu Z H, Wu H, et al. Journal of Central South University(Natural Science Edition), 2021, 52(7), 2386(in Chinese).
宋卫民, 徐子浩, 吴昊, 等. 中南大学学报(自然科学版), 2021, 52(7), 2386.
13 Liang J L, Gao J P, Chang L. Journal of Guangxi University(Natural Science Edition), 2016, 41(1), 246(in Chinese).
梁俊龙, 高江平, 苌亮. 广西大学学报(自然科学版), 2016, 41(1), 246.
14 Chen G X, Yin Y P, Luo Y F. New Chemical Materials, 2022, 50(3), 276(in Chinese).
陈改霞, 尹艳平, 罗要飞. 化工新型材料, 2022, 50(3), 276.
15 Khattak M J, Khattab A, Hashim R. Construction & Building Materials, 2013, 40(3), 738.
16 Luan L Q. Chinese Journal of Civil Engineering, 2017, 50(9), 118(in Chinese).
栾利强. 土木工程学报, 2017, 50(9), 118.
17 Yu C H, Hu K, Chen G X, et al. Journal of Zhejiang University-Science(Applied Physics & Engineering), 2021, 22(7), 528.
18 Liao G Y, Huang X M. Application of ABAQUS finite element software in road engineering. Southeast University Press, China, 2014, pp. 183(in Chinese).
廖公云, 黄晓明. ABAQUS有限元软件在道路工程中的应用. 东南大学出版社, 2014, pp. 183.
19 Tian X G, Han H F, Li X W, et al. Journal of Building Materials, 2016, 19(4), 758(in Chinese).
田小革, 韩海峰, 李新伟, 等. 建筑材料学报, 2016, 19(4), 758.
20 Wang P. Interfacial enhancement mechanism and rheological properties of composite polymer modified asphalt with carbon nanotube. Ph. D. Thesis, Harbin Institute of Technology, 2017(in Chinese).
王鹏. 碳纳米管/聚合物复合改性沥青界面增强机制及流变特性研究. 博士学位论文, 哈尔滨工业大学, 2017.