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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.12 No.4
- 발행연도
- 2018.5
- 수록면
- 507 - 518 (12page)
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This paper presents the behaviour of potassium activators synthesized fly ash geopolymer containing carbon and basalt fibre at ambient and elevated temperature. Six series of fly ash based geopolymer were cast where carbon and basalt fibre were added as 0.5, 1 and 1.5% by weight of fly ash. One extra control series without any fibre was also cast. Each series of samples were tested at ambient temperature and also heated at 200, 400, 600 and 800℃ and thus a total of 35 series of samples were tested in this study. The result shows that the geopolymer containing 1 wt% basalt and 1 wt% carbon fibre exhibited better compressive strength, lower volumetric shrinkage and mass loss than other fibre contents. Among two fibres composites, the carbon fibre geopolymer exhibited better performance than its basalt fibre counterpart regardless of temperature. The microstructure of carbon fibre reinforced geopolymer composite is more compact containing fewer pores/voids than its basalt based counterpart at elevated temperatures. The results also support the fact that carbon fibre is better than basalt fibre at elevated temperature and showed better bonding with geopolymer at elevated temperature.
목차
Abstract
1. Introduction
2. Methodology
3. Materials, Mixing and Methods
4. Elevated Temperature Exposure
5. Results and Discussion
6. Conclusions
References
참고문헌 (33)
참고문헌 신청
Abdulkareem, O. A., Al-bakri, A. M. M., Kamarudin, H., Nizar, I. K., & Saif, A. A. (2014). Effects of elevated temperatures on the thermal behaviour and mechanical performance of fly ash geopolymer paste, mortar and light weight concrete. Construction and Building Materials, 50, 337?387.
Ali, M. A., Majumdar, A. J., & Singh, B. (1975). Properties of glass fibre cement?the effect of fibre length and content. Journal of Materials Science, 10, 1732?1740.
AS 1012.9. (2014). Methods of testing concrete?Compressive strength tests?Concrete, mortar and grout specimens. Syndey: Standards Australia.
Bakharev, T. (2006). Thermal behaviour of geopolymers prepared using class F fly ash and elevated temperatures curing. Cement and Concrete Research, 36, 1134?1147.
Bell, J., Gordon, M., Kriven, W. M., Comrie, D. (2005). Graphite fiber reinforced geopolymer molds for near net shape casting of molten diferrous silicide, conference paper. In Workshop on Geopolymers and Geopolymer Concrete (p. 12). Perth, WA.
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