| Residential College | false |
| Status | 已發表Published |
| Geopolymer extruded composites with incorporated fly ash and polyvinyl alcohol short fiber | |
| Yunsheng Z.2; Wei S.3; Li Z.1; Xiangming Z.1 | |
| 2009 | |
| Source Publication | ACI Materials Journal
 |
| ISSN | 0889325X |
| Volume | 106Issue:1Pages:3-10 |
| Abstract | A polyvinyl alcohol (PVA) short-fiber-reinforced fly ash geopolymer composite manufactured by extrusion technique (SFRFGC) was developed in this study. The effects of fly ash content and fiber volume fraction on the rheological and flexural behaviors of SFRFGC were systematically investigated. The experimental results show that for normally-cured SFRFGC, the addition of PVA fiber greatly increases the ductility of SFRFGC, especially in the case of high-volume fractions of fiber, which results in a change of SFRFGCs failure mode from a brittle pattern to a ductile one. In contrast, the addition of fly ash exhibits an important influence on the rhelogical and flexural behaviors. The spherical shape of fly ash can obviously improve the extrudability of fresh SFRFGC pastes. SFRFGC without and with a low percentage of fly ash has very high flexural strength and low deflection. On the other hand, SFRFGC with a high percentage of fly ash has a low flexural strength but a large deflection. The failure mechanism was also investigated by scanning electron microscope (SEM). Copyright © 2009, American Concrete Institute. All rights reserved. |
| Keyword | Extrusion technique Fiber Flexural behavior Fly ash Geopolymeric cement Microstructure Theological behavior |
| URL | View the original |
| Language | 英語English |
| Fulltext Access | |
| Document Type | Journal article |
| Collection | University of Macau |
| Affiliation | 1.Hong Kong University of Science and Technology 2.Southeast University 3.Jiangsu Key Laboratory for Construction Materials |
| Recommended Citation GB/T 7714 | Yunsheng Z.,Wei S.,Li Z.,et al. Geopolymer extruded composites with incorporated fly ash and polyvinyl alcohol short fiber[J]. ACI Materials Journal, 2009, 106(1), 3-10. |
| APA | Yunsheng Z.., Wei S.., Li Z.., & Xiangming Z. (2009). Geopolymer extruded composites with incorporated fly ash and polyvinyl alcohol short fiber. ACI Materials Journal, 106(1), 3-10. |
| MLA | Yunsheng Z.,et al."Geopolymer extruded composites with incorporated fly ash and polyvinyl alcohol short fiber".ACI Materials Journal 106.1(2009):3-10. |
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