Improved microwave heating and healing properties of bitumen by using nanometer microwave-absorbers

被引：60

作者：

Li, Chao ^{[1
]}

Wu, Shaopeng ^{[1
]}

Chen, Zongwu ^{[2
]}

Tao, Guanyu ^{[1
]}

Xiao, Yue ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Hubei, Peoples R China

[2] China Univ Geosci Wuhan, Fac Engn, Wuhan 430074, Hubei, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 189卷

基金：

中国国家自然科学基金;

关键词：

Carbon nanotubes; Graphene; Modified bitumen; Self-healing properties; Rheological properties; Microwave heating; LOW-TEMPERATURE PERFORMANCE; MODIFIED ASPHALT CONCRETE; RHEOLOGICAL PROPERTIES; COMPOSITES; PAVEMENTS; MIXTURES; WASTE;

D O I：

10.1016/j.conbuildmat.2018.09.050

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Two nanometer microwave-absorbers named as carbon nanotubes (CNTs) and graphene, were firstly used to improve the microwave heating and healing properties of bitumen under microwave irradiation. Surface textures of two nanometer microwave-absorbers, low-temperature cracking resistance and high temperature Theological properties of modified bitumen during heating process were characterized. Initial self-healing temperature based on flow behavior index, exothermic rate and healing effects of bitumen were also tested. Results illustrated that CNTs and graphene improved the high-temperature rheological properties of basis bitumen, while they presented a worse effect on low-temperature cracking resistance. Exothermic rate of basis bitumen was only a quarter of that of graphene modified bitumen and one third of that of CNTs modified bitumen. After 12 h of rest time, the healing indexes of basis bitumen, graphene modified bitumen and CNTs modified bitumen were 13.89%, 69.15% and 75.20% respectively. Nanometer microwave-absorbers significantly accelerated the heating process and modified bitumen had better healing effects than basis bitumen. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：757 / 767

页数：11

共 41 条

[1] Induction welding of thermoplastic composites - An overview [J].

Ahmed, T. J. ;

Stavrov, D. ;

Bersee, H. E. N. ;

Beukers, A. .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2006, 37 (10) :1638-1651

[2] Self-healing of asphalt mastic by the action of polymeric capsules containing rejuvenators [J].

Al-Mansoori, T. ;

Norambuena-Contreras, J. ;

Micaelo, R. ;

Garcia, A. .

CONSTRUCTION AND BUILDING MATERIALS, 2018, 161 :330-339

[3]

[Anonymous], MATERIALS

[4] Advanced evaluation of asphalt mortar for induction healing purposes [J].

Apostolidis, P. ;

Liu, X. ;

Scarpas, A. ;

Kasbergen, C. ;

van de Ven, M. F. C. .

CONSTRUCTION AND BUILDING MATERIALS, 2016, 126 :9-25

[5]

Chen J., J MAT CIV ENG, V11

[6] Gradient multilayer structural design of CNTs/SiO2 composites for improving microwave absorbing properties [J].

Chen, Mingxia ;

Zhu, Yong ;

Pan, Yubai ;

Kou, Huamin ;

Xu, Heng ;

Guo, Jingkun .

MATERIALS & DESIGN, 2011, 32 (05) :3013-3016

[7] Effect of hydration and silicone resin on Basic Oxygen Furnace slag and its asphalt mixture [J].

Chen, Zongwu ;

Wu, Shaopeng ;

Xiao, Yue ;

Zeng, Wenbo ;

Yi, Mingwei ;

Wan, Jiuming .

JOURNAL OF CLEANER PRODUCTION, 2016, 112 :392-400

[8] Inhibiting effect of Layered Double Hydroxides on the emissions of volatile organic compounds from bituminous materials [J].

Cui, Peiqiang ;

Wu, Shaopeng ;

Xiao, Yue ;

Wan, Miao ;

Cui, Peide .

JOURNAL OF CLEANER PRODUCTION, 2015, 108 :987-991

[9] Laboratory evaluation of fatigue damage and healing of asphalt mixtures [J].

Daniel, JS ;

Kim, YR .

JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2001, 13 (06) :434-440

[10]

Faramarzi M., 2013, PARAMETERS

← 1 2 3 4 5 →