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Mechanical properties and microstructure of ground granulated blast furnace slag-based geopolymer reinforced with polyvinyl alcohol fibers

文献类型：期刊论文

作者Yu, Ting6,7; Chen, Jiarong6,7; Guo, Haozhe5; Zhang, Baifa4; He, Xibin3; Zheng, Anmin3; Wang, Qiang2; Yuan, Peng1,7
刊名JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
出版日期2023
卷号25期号:3页码:1719-1731
关键词ALKALI-ACTIVATED SLAG FLY-ASH CARBON POLYPROPYLENE BEHAVIOR DESIGN STEEL
ISSN号1438-4957
DOI10.1007/s10163-023-01646-3
英文摘要Ground granulated blast furnace slag (GGBFS) is a solid waste characterized by a high reactivity with alkali solutions, which is normally used geopolymer precursor. Fiber is often used to reinforce geopolymer. However, systematic investigation on the relationship between mechanical properties and microstructure for PVA fibers reinforced GGBFS-based geopolymer (FRGp) is neglected. In this study, the effects of the PVA fiber content on the mechanical properties and microstructure of the geopolymer were investigated. The incorporation of PVA fibers into the Gp reduced its compressive strength, attributable to the increase in pore size and total porosity from 4.0% to 7.6%. Nonetheless, the PVA fibers could confine the crack propagation and absorb energy, thereby remarkably increasing the flexural strength of the FRGp. The FRGp containing 2.0 wt% PVA fibers exhibited a flexural strength of 10.1?MPa, 65.6% higher than the Gp after 28?days of curing. Moreover, the PVA fibers exhibited strong physical adhesion to the geopolymer matrix without altering its mineral composition. The results of this study can further elucidate that PVA fibers can pose the positive and negative effects on flexural strength and compressive strength based on the microstructure, respectively, which provided some basic theories for the practical application of Gp. ? 2023, Springer Nature Japan KK, part of Springer Nature.
WOS研究方向Environmental Sciences
语种英语
WOS记录号WOS:000953339800001
源URL[http://ir.gig.ac.cn/handle/344008/80199]  
专题中国科学院矿物学与成矿学重点实验室
作者单位1.School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou; 510006, China
2.Foshan Water and Environmental Protection Co., Ltd., Foshan; 528000, China
3.Shanxi Xintai Iron and Steel Co., Ltd., Jiexiu; 032000, China
4.School of Civil and Transportation Engineering, Guangdong University of Technology, Guangdong, Guangzhou; 510006, China
5.Institute of Resources Utilization and Rear Earth Development, Guangdong Academy of Sciences, Guangzhou; 510650, China
6.University of Chinese Academy of Sciences, Beijing; 100049, China
7.CAS Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Institutions of Earth Science, Chinese Academy of Sciences, Guangzhou; 510640, China
推荐引用方式
GB/T 7714		 Yu, Ting,Chen, Jiarong,Guo, Haozhe,et al. Mechanical properties and microstructure of ground granulated blast furnace slag-based geopolymer reinforced with polyvinyl alcohol fibers[J]. JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT,2023,25(3):1719-1731.
APA Yu, Ting.,Chen, Jiarong.,Guo, Haozhe.,Zhang, Baifa.,He, Xibin.,...&Yuan, Peng.(2023).Mechanical properties and microstructure of ground granulated blast furnace slag-based geopolymer reinforced with polyvinyl alcohol fibers.JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT,25(3),1719-1731.
MLA Yu, Ting,et al."Mechanical properties and microstructure of ground granulated blast furnace slag-based geopolymer reinforced with polyvinyl alcohol fibers".JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT 25.3(2023):1719-1731.

入库方式： OAI收割

来源：广州地球化学研究所

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