플라이애시-고로슬래그 기반 지오폴리머 세라믹스의 열적특성

김진호; 남인탁; 박현; 김경남; Jin-Ho Kim; In-Tak Nam; Hyun Park; Kyung-Nam Kim

Korean Journal of Materials Research, Vol.26, No.10, 521-527, October, 2016

DOI10.3740/MRSK.2016.26.10.521 Export Citation

플라이애시-고로슬래그 기반 지오폴리머 세라믹스의 열적특성

Thermal Property of Geopolymer Ceramics Based on Fly Ash-Blast Furnace Slag

김진호, 남인탁^†, 박현¹, 김경남¹

강원대학교 나노응용공학과
¹강원대학교 신소재공학과

Jin-Ho Kim, In-Tak Nam^†, Hyun Park¹, and Kyung-Nam Kim¹

Department of Nano Applied Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
¹Department of Advanced Materials Engineering, Kangwon National University, Samcheok 25913, Republic of Korea

E-mail:

Geopolymers have many advantages over Portland cement, including energy efficiency, reduced greenhouse gas emissions, high strength at early age and improved thermal resistance. Alkali activated geopolymers made from waste materials such as fly ash or blast furnace slag are particularly advantageous because of their environmental sustainability and low cost. However, their durability and functionality remain subjects for further study. Geopolymer materials can be used in various applications such as fire and heat resistant fiber composites, sealants, concretes, ceramics, etc., depending on the chemical composition of the source materials and the activators. In this study, we investigated the thermal properties and microstructure of fly ash and blast furnace slag based geopolymers in order to develop eco-friendly construction materials with excellent energy efficiency, sound insulation properties and good heat resistance. With different curing times, specimens of various compositions were investigated in terms of compressive strength, X-ray diffraction, thermal property and microstructure. In addition, we investigated changes in X-ray diffraction and microstructure for geopolymers exposed to 1,000 °C heat.

Keywords:geopolymer;fly ash;alkali activation;thermal property;slag

[References]

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[1] Duxson P, Provis JL, Lukey GC, Van Deventer JSJ, Cem. Concr. Res., 37, 1590 (2007)

[2] Temuujin J, van Riessen A, J. Hazard. Mater., 164, 634 (2008)

[3] Davidovits J, in Proceedings of 1st International Conference on Alkaline Cement and Concrete, Scientific Research Institute on Binders and Materials (Kiev, Ukraine, October 1994) p.131.)

[4] Son SG, Hong SY, Kim YD, J. Korean Ceram. Soc., 45, 395 (2008)

[5] Kim JT, Seo DS, Kim GJ, Lee JK, J. Korean Ceram. Soc., 47, 216 (2010)

[6] Lee SK, Kim YS, J. Arch. Inst. Korean Struct. Const., 30, 39 (2014)

[7] Koh KT, Ryu GS, Lee JH, J. Korean Recy. Cons. Insti., 6, 119 (2011)

[8] Cheng TW, Chiu JP, Miner. Eng., 16(3), 205 (2003)

[9] Barbosa VFF, MacKenzie KJD, Mater. Res. Bull., 38(2), 319 (2003)

[10] Zhao R, Sanjayan JG, Mag. Concr. Res., 63, 163 (2011)

[11] Barbosa VFF, MacKenzie KJD, Mater. Res. Bull., 38(2), 319 (2003)

[12] Chen CH, Chiou IJ, Wang KS, Cem. Concr. Compos., 28, 26 (2006)

[13] Davidovits J, US Patent 4, 472, 199 (1984).

[14] Kumar S, Kumar R, Mehrotra SP, J. Mater. Sci., 45(3), 607 (2010)

[15] Panias D, Giannopoulou IP, Perraki T, Colloids Surf. A: Physicochem. Eng. Asp., 301, 246 (2007)

[16] Zhang YS, Sun W, Chen QL, Chen L, J. Hazard. Mater., 143(1-2), 206 (2007)

[17] Zhang JG, Provis JL, Feng DW, van Deventer JSJ, J. Hazard. Mater., 157(2-3), 587 (2008)

[18] Palomo A, Grutzeck MW, Blanco MT, Cem. Concr. Res., 29, 1323 (1999)

[19] Sindhunata, Ph. D Thesis, Unversity of Melboume, Australia, 83-88, (2006).

[20] Choi WZ, Park EK, J. Korean Inst. Res. Recy., 15, 47 (2006)

[21] Palacios M, Puertas F, Cem. Concr. Res., 37, 691 (2007)

[22] Son SG, Lee WK, Kim YD, Kim KN, Korean J. Mater. Res., 21, 502 (2011)

[23] He P, Jia D, Wang M, Zhou Y, Ceram. Int., In Press (2010).

[24] Lucia AR, Gerard P, Etienne M, Alain E, Cem. Concr. Res., 35, 609 (2005)

[25] Son SG, Kim YD, J. Korea Soc. Waste Manag., 27, 709 (2010)

[26] Joseph B, Ph. D. Thesis (in Indian), p.90-92 Cochin University of Science and Technology (2015).