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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.10 No.1
- 발행연도
- 2016.3
- 수록면
- 113 - 124 (12page)
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This paper presents the effect of silica fume and nano silica, used individually and in combination with the set accelerator and/or hydrated lime, on the properties of class F high volume ultra fine fly ash (HV-UFFA) cement composites, replacing 80 % of cement (OPC). Compressive strength test along with thermogravimetric analysis, X-ray diffraction and scanning electron microscopy were undertaken to study the effect of various elements on the physico-chemical behaviour of the blended composites. The results show that silica fume when used in combination with the set accelerator and hydrated lime in HV-UFFA cement mortar, improves its 7 and 28 day strength by 273 and 413 %, respectively, compared to the binary blended cement fly ash mortar. On the contrary, when nano silica is used in combination with set accelerator and hydrated lime in HV-UFFA cement mortar, the disjoining pressure in conjunction with the self-desiccation effect induces high early age micro cracking, resulting in hindering the development of compressive strength. However, when nano silica is used without the additives, it improves the 7 and 28 day strengths of HV-UFFA cement mortar by 918 and 567 %, respectively and the compressive strengths are comparable to that of OPC.
목차
Abstract
1. Introduction
2. Materials and Experimental Procedure
3. Results and Discussion
4. Conclusions
5. Acknowledgements
References
참고문헌 (51)
참고문헌 신청
[기타자료] - / 2014 / About Coal Ash-CCP FAQs, American Coal Ash Association; p. Coal Combustion Products-Frequently Asked Questions
[학술지(정기간행물)] - Atis, C. D. / 2003 / High-volume fly ash concrete with high strength and low drying shrinkage / Journal of Materials in Civil Engineering 15 (2) : 153 ~ 156
[학술지(정기간행물)] - Barbhuiya, S. / 2009 / Properties of fly ash concrete modified with hydrated lime and silica fume / Construction and Building Materials 23 (10) : 3233 ~ 3239
[단행본] - Beltzung, F. / 2001 / Influence of composition of pore solution on drying shrinkage. Creep, Shrinkage and Durability Mechanics of Concrete and other Quasi-Brittle Materials / Elsevier Science Ltd
[학술지(정기간행물)] - Benhelal, E. / 2013 / Global strategies and potentials to curb CO2 emissions in cement industry / Journal of Cleaner Production 51 : 142 ~ 161
[학술지(정기간행물)] - Atis, C. D. / 2003 / High-volume fly ash concrete with high strength and low drying shrinkage / Journal of Materials in Civil Engineering 15 (2) : 153 ~ 156
[학술지(정기간행물)] - Barbhuiya, S. / 2009 / Properties of fly ash concrete modified with hydrated lime and silica fume / Construction and Building Materials 23 (10) : 3233 ~ 3239
[단행본] - Beltzung, F. / 2001 / Influence of composition of pore solution on drying shrinkage. Creep, Shrinkage and Durability Mechanics of Concrete and other Quasi-Brittle Materials / Elsevier Science Ltd
[학술지(정기간행물)] - Benhelal, E. / 2013 / Global strategies and potentials to curb CO2 emissions in cement industry / Journal of Cleaner Production 51 : 142 ~ 161
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