Dynamic compressive mechanical properties of fibre-reinforced geopolymer concrete
To investigate the influence of different fibre types on the dynamic mechanical properties of geopolymer concrete (GPC), this study conducted experimental research on fibre-reinforced geopolymer concrete (FRGC) incorporating either steel or basalt fibres. Dynamic compression tests were performed usi...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509525000671 |
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| author | Jihao Su Jize Mao Bukui Zhou Wei Zhang Limei Wang Chaomin Mu |
| author_facet | Jihao Su Jize Mao Bukui Zhou Wei Zhang Limei Wang Chaomin Mu |
| author_sort | Jihao Su |
| collection | DOAJ |
| description | To investigate the influence of different fibre types on the dynamic mechanical properties of geopolymer concrete (GPC), this study conducted experimental research on fibre-reinforced geopolymer concrete (FRGC) incorporating either steel or basalt fibres. Dynamic compression tests were performed using a 50 mm diameter split Hopkinson pressure bar (SHPB) at varying strain rates ranging from 69.1 to 235 s⁻¹ . The failure process of the specimens during impact was recorded using high-speed camera technology. The research analyzed the effects of fibre types on static compressive strength, dynamic failure processes, damage modes, dynamic compressive strength, specific energy absorption, and the dynamic increase factor (DIF). The results indicated that steel fibres have the better performance in enhancing static compressive strength, which can achieve a 23.2 % increase compared to plain high-strength geopolymer concrete (PGPC). A positive correlation was found between compressive strength and strain rate for all GPC and FRGC specimens. Under the tested strain rates, specimens containing basalt fibres demonstrated greater strain rate sensitivity in compressive strength compared to those containing steel fibres. Additionally, corresponding empirical formulas were proposed to predict the DIF and specific energy absorption for both GPC and FRGC. |
| format | Article |
| id | doaj-art-a6044119b22d4cb3aa8f17bb66586060 |
| institution | Kabale University |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-a6044119b22d4cb3aa8f17bb665860602025-02-06T05:11:47ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e04268Dynamic compressive mechanical properties of fibre-reinforced geopolymer concreteJihao Su0Jize Mao1Bukui Zhou2Wei Zhang3Limei Wang4Chaomin Mu5College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaInstitute of Defense Engineering, AMS, PLA, Beijing 100850, China; Corresponding authors.College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China; Corresponding authors.Institute of Defense Engineering, AMS, PLA, Beijing 100850, ChinaCollege of Safety and Science Engineering, Anhui University of Science& Technology, Anhui 232001, ChinaTo investigate the influence of different fibre types on the dynamic mechanical properties of geopolymer concrete (GPC), this study conducted experimental research on fibre-reinforced geopolymer concrete (FRGC) incorporating either steel or basalt fibres. Dynamic compression tests were performed using a 50 mm diameter split Hopkinson pressure bar (SHPB) at varying strain rates ranging from 69.1 to 235 s⁻¹ . The failure process of the specimens during impact was recorded using high-speed camera technology. The research analyzed the effects of fibre types on static compressive strength, dynamic failure processes, damage modes, dynamic compressive strength, specific energy absorption, and the dynamic increase factor (DIF). The results indicated that steel fibres have the better performance in enhancing static compressive strength, which can achieve a 23.2 % increase compared to plain high-strength geopolymer concrete (PGPC). A positive correlation was found between compressive strength and strain rate for all GPC and FRGC specimens. Under the tested strain rates, specimens containing basalt fibres demonstrated greater strain rate sensitivity in compressive strength compared to those containing steel fibres. Additionally, corresponding empirical formulas were proposed to predict the DIF and specific energy absorption for both GPC and FRGC.http://www.sciencedirect.com/science/article/pii/S2214509525000671Fibre-reinforced geopolymer concreteSteel fibresBasalt fibresDynamic compressive strengthSplit Hopkinson pressure bar |
| spellingShingle | Jihao Su Jize Mao Bukui Zhou Wei Zhang Limei Wang Chaomin Mu Dynamic compressive mechanical properties of fibre-reinforced geopolymer concrete Case Studies in Construction Materials Fibre-reinforced geopolymer concrete Steel fibres Basalt fibres Dynamic compressive strength Split Hopkinson pressure bar |
| title | Dynamic compressive mechanical properties of fibre-reinforced geopolymer concrete |
| title_full | Dynamic compressive mechanical properties of fibre-reinforced geopolymer concrete |
| title_fullStr | Dynamic compressive mechanical properties of fibre-reinforced geopolymer concrete |
| title_full_unstemmed | Dynamic compressive mechanical properties of fibre-reinforced geopolymer concrete |
| title_short | Dynamic compressive mechanical properties of fibre-reinforced geopolymer concrete |
| title_sort | dynamic compressive mechanical properties of fibre reinforced geopolymer concrete |
| topic | Fibre-reinforced geopolymer concrete Steel fibres Basalt fibres Dynamic compressive strength Split Hopkinson pressure bar |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525000671 |
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