Improving flexural strength of UHPC with sustainably synthesized graphene oxide
Luo, Qizhi1; Wu, Yu-You1; Qiu, Wenjun2; Huang, Haoliang3; Pei, Songfeng4; Lambert, Paul5; Hui, David6
Corresponding AuthorWu, Yu-You(
AbstractUltrahigh-performance concrete (UHPC) has been increasingly employed for infrastructure and building structure, thanks to its excellent durability and exceptional mechanical properties; however, improving its relatively low flexural strength remains a challenging issue. This study presents an experimental investigation on improving the compressive strength and flexural strength of UHPC by employing sustainably synthesized graphene oxide (GO). The content of micro steel fibers (MSFs) for the UHPC ranges from 0.5 to 1.5% by volume of concrete. For each level of MSFs addition, the dosage of GO added is from 0.00 to 0.03% by mass of cement. The results indicate that the electrochemical (EC) method to synthesize GO is greener, safer, and lower in cost for construction industry. And the compressive strength of UHPC is slightly improved, while its flexural strength is significantly increased from 33 to 65%, demonstrating that the incorporation of GO can be an effective measure to enhance the flexural strength of UHPC under standard curing and steam curing. This can be associated with the improvement in bond strength between the MSFs and the matrix contributed by the improved inter facial microstructure, the higher friction increase, and the mechanical interlock at the interface between the MSFs and the bulk matrix, thanks to the addition of GO.
Keywordsustainably synthesized graphene oxide ultra-high-performance concrete flexural strength
Funding OrganizationNational Natural Science Foundation of China ; Foshan University, China ; GT New Materials and Infrastructure Technology Ltd, China
Indexed BySCI
Funding ProjectNational Natural Science Foundation of China[50978058] ; Foshan University, China[GG040995] ; GT New Materials and Infrastructure Technology Ltd, China[GTRD201901]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000684195200002
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Document Type期刊论文
Corresponding AuthorWu, Yu-You
Affiliation1.Foshan Univ, Sch Transportat Civil Engn & Architecture, Foshan 528225, Guangdong, Peoples R China
2.Foshan Transportat Sci & Technol Ltd, Guangzhou 528300, Guangdong, Peoples R China
3.South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
5.Sheffield Hallam Univ, Mat & Engn Res Inst, Sheffield S1 1WB, S Yorkshire, England
6.Univ New Orleans, Dept Mech Engn, New Orleans, LA 70148 USA
Recommended Citation
GB/T 7714
Luo, Qizhi,Wu, Yu-You,Qiu, Wenjun,et al. Improving flexural strength of UHPC with sustainably synthesized graphene oxide[J]. NANOTECHNOLOGY REVIEWS,2021,10(1):754-767.
APA Luo, Qizhi.,Wu, Yu-You.,Qiu, Wenjun.,Huang, Haoliang.,Pei, Songfeng.,...&Hui, David.(2021).Improving flexural strength of UHPC with sustainably synthesized graphene oxide.NANOTECHNOLOGY REVIEWS,10(1),754-767.
MLA Luo, Qizhi,et al."Improving flexural strength of UHPC with sustainably synthesized graphene oxide".NANOTECHNOLOGY REVIEWS 10.1(2021):754-767.
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