3D porous graphene nanosheets as efficient additives for high-performance styrene–butadiene–styrene/crumb rubber blend-modified asphalt

Zhiheng Wu; Yilin Huang; Lifa Gui; Lizhe Liang; Jingwei Ying; Weiqing Li; Pei Kang Shen; Zhi Qun Tian

Materials & Design (Aug 2023)

3D porous graphene nanosheets as efficient additives for high-performance styrene–butadiene–styrene/crumb rubber blend-modified asphalt

Zhiheng Wu,
Yilin Huang,
Lifa Gui,
Lizhe Liang,
Jingwei Ying,
Weiqing Li,
Pei Kang Shen,
Zhi Qun Tian

Affiliations

Zhiheng Wu: Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Institute of Science and Technology for Carbon Peak & Neutrality, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Nanning 530004, China; Key Laboratory of Transport Industry of Road Structure and Material, Research Institute of Highway, Ministry of Transport, Beijing 100088, China
Yilin Huang: Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Institute of Science and Technology for Carbon Peak & Neutrality, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Nanning 530004, China; Key Laboratory of Transport Industry of Road Structure and Material, Research Institute of Highway, Ministry of Transport, Beijing 100088, China
Lifa Gui: Guangxi Zhenglu Machinery Technology Company Limited, Nanning 530022, China
Lizhe Liang: Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Institute of Science and Technology for Carbon Peak & Neutrality, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Nanning 530004, China; Key Laboratory of Transport Industry of Road Structure and Material, Research Institute of Highway, Ministry of Transport, Beijing 100088, China; School of Mechanical Engineering, Guangxi University, Nanning 530004, China
Jingwei Ying: Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Institute of Science and Technology for Carbon Peak & Neutrality, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Nanning 530004, China; Key Laboratory of Transport Industry of Road Structure and Material, Research Institute of Highway, Ministry of Transport, Beijing 100088, China; School of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Nanning 530004, China
Weiqing Li: Guangxi Zhengtong Engineering Technology Company Limited, Nanning 530022, China
Pei Kang Shen: Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Institute of Science and Technology for Carbon Peak & Neutrality, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Nanning 530004, China; Key Laboratory of Transport Industry of Road Structure and Material, Research Institute of Highway, Ministry of Transport, Beijing 100088, China
Zhi Qun Tian: Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Institute of Science and Technology for Carbon Peak & Neutrality, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Nanning 530004, China; Key Laboratory of Transport Industry of Road Structure and Material, Research Institute of Highway, Ministry of Transport, Beijing 100088, China; Corresponding author.

Journal volume & issue: Vol. 232
p. 112157

Abstract

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Styrene-butadiene-styrene (SBS)/crumb rubber (CR) blend-modified asphalt is a desirable binder for pavement engineering with both environmental and economic benefits. However, the inherent incompatibility of SBS and CR in asphalt is still a critical issue. Herein, 3D porous graphene (3DPG) with high surface area and rich micropores as reinforced additive was investigated in SBS/CR blend-modified asphalt for the first time. The experimental results demonstrate that incorporating 3DPG can effectively improve the compatibility of SBS and CR in asphalt and thus significantly enhance the high and low temperature performance and fatigue resistance of the modified asphalt, compared with that without 3DPG. Theoretical calculations further reveal that the nanopores in graphene can endow graphene with electrophilic property, providing a capability of absorbing nonpolar molecules in asphalt while the non-pore part in graphene can interact with polar molecules by conventional π − π stacking. The two forces within graphene can break the original colloidal structures of asphalt, which is conductive to the homogenous formation of SBS network and swelling of CR in asphalt, significantly promoting the pavement performance of the modified asphalt. This work presents the great potential of 3DPG as new additive to solve the inherent incompatibility of SBS/CR blend-modified asphalt for high-grade pavement engineering.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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