Abstract
Yapılan bu çalışmada jeopolimer malzemelerin mikroyapı özellikleri üzerine kuvars ve metakaolen katkısının etkileri incelenmiştir. Bu doğrultuda, numunelerin üretiminde kullanılan uçucu kül Soma Termik Santrali uçucu külü olup, karışımlarda, alkali aktifleştirici olarak; sodyum silikat solüsyonu (SS) ve sodyum hidroksit (NaOH) kullanılmıştır. Hazırlanan harçlar, 280 mm x 70 mm x 70 mm’lik çelik kalıplarda ve vibrasyon yöntemiyle şekillendirilmiştir. Ardından numuneler 24 saat süre ile 75 ºC’de laboratuvar tipi etüvde termal olarak kürlenmiştir. Sonuç olarak, standart bünyeye kıyasla kuvars ve metakaolen içeren numunelerde yoğunluklarda artış tespit edilmiştir. Buna bağlı olarakta toplam porozite değerlerinde düşüş tespit edilmiştir. Eğme ve basma mukavemet değerlerinde de standart bünyeye kıyasla artış olmuştur.
Keywords
References
- Cioffi, R., Maffucci, L., Santoro, L., (2003). Optimization of geopolymer synthesis by calcination and polycondensation of a kaolinitic residue”, Resources Conservation and Recycling, Vol. 40, pp. 27-38
- Davidovits, J., (1991). Geopolymers – inorganic polymeric new materials, J Therm Anal 37, 1633–1656
- Duxson, P, Provis, JL, Lukey, G.C., Van Deventer, J.S.J., (2007). The role of inorganic polymer technology in the development of ‘Green concrete, Cement Concrete Research, 37(12), 1590–1597
- Jaarsveld, J.G.S., Deventer, J.S.J., (1999). Effect of the alkali metal activator on the properties of fly ash based geopolymers, Indian Engineering of Chemistry Research, Vol. 38, No.10 pp. 3932-3941
- Koç, M., Zeybek, M.S., (2014). Kalsit ilaveli jeopolimer malzemeleri sinterlemenin gözenekliliğe etkileri, C.B.Ü. Fen Bilimleri Dergisi, 10.1, 25– 31
- Li, Z., Zhang, Y., Zhou, X., (2005). Short Fiber Reinforced Geopolymer Composites Manufactured by Extrusion, Journal of Materials in Civil Engineering,17,624-631,
- Palomo, A, Grutzeck, M.W., Blanco, M.T., (1999). Alkali-activated fly ashes, a cement for the future, Cement and Concrete Research, 29:1323–1329,
- Swanepoel, J.C., Strydom, C.A., (2002). Utilisation of fly ash in a geopolymeric material, Applied Geochemistry,17, 1143-1148
- Topçu, İ.B., Canbaz, M., (2008). Alkali aktive edilmiş yüksek fırın cüruflu harçlarda donma çözülme, ESOGÜ Müh-Mim Fak. Dergisi, Cilt 21, No. 2, ss. 1-16
- Topçu, İ.B., Toprak, U., (2008). Alkalilerle Aktive Edilen Uçucu Külle Hafif Tuğla Üretilmesi, 4. Ulusal Yapı Malzemesi Kongresi ve Sergisi, 12-14 Kasım 2008, İstanbul, Türkiye, ss. 38-45.
- Xu, H., Van Deventer, J.S.J., (2000). The geopolymerisation of alumino-silicate minerals, Int. J. Miner. Process. 59, 247–266
- Yip, C. K., Provis, J. L., Lukey, G. C., Van Deventer, J.S.J., (2008). Carbonate mineral addition to metakaolin-based geopolymers, Cement & Concrete Composites 30, 979–985
- Zhaohui, X., Yunping, X., (2001). Hardening mechanisms of an alkaline activated class F fly ash, Cement and Concrete Research, Vol. 31, pp. 1245-1249
Abstract
In this study, it was investigated that the effect of quartz and metakaolinite on microstructural properties of geopolymer materials. Fly ash (Soma Thermal power plant, Manisa), sodium silicate (SS) and sodium hydroxide were used for the production of samples. The prepared mortars were formed by vibration method in steel molds of 280 mm x 70 mm x 70 mm. After that, the samples were thermally cured at 75 ° C for 24 hours. As a result, there was an increase in the density of the samples containing quartz and metakaolinite compared to the standard sample. Accordingly, a decrease in total porosity values was determined. The bending and compression strength values also increased compared to the standard sample.
References
- Cioffi, R., Maffucci, L., Santoro, L., (2003). Optimization of geopolymer synthesis by calcination and polycondensation of a kaolinitic residue”, Resources Conservation and Recycling, Vol. 40, pp. 27-38
- Davidovits, J., (1991). Geopolymers – inorganic polymeric new materials, J Therm Anal 37, 1633–1656
- Duxson, P, Provis, JL, Lukey, G.C., Van Deventer, J.S.J., (2007). The role of inorganic polymer technology in the development of ‘Green concrete, Cement Concrete Research, 37(12), 1590–1597
- Jaarsveld, J.G.S., Deventer, J.S.J., (1999). Effect of the alkali metal activator on the properties of fly ash based geopolymers, Indian Engineering of Chemistry Research, Vol. 38, No.10 pp. 3932-3941
- Koç, M., Zeybek, M.S., (2014). Kalsit ilaveli jeopolimer malzemeleri sinterlemenin gözenekliliğe etkileri, C.B.Ü. Fen Bilimleri Dergisi, 10.1, 25– 31
- Li, Z., Zhang, Y., Zhou, X., (2005). Short Fiber Reinforced Geopolymer Composites Manufactured by Extrusion, Journal of Materials in Civil Engineering,17,624-631,
- Palomo, A, Grutzeck, M.W., Blanco, M.T., (1999). Alkali-activated fly ashes, a cement for the future, Cement and Concrete Research, 29:1323–1329,
- Swanepoel, J.C., Strydom, C.A., (2002). Utilisation of fly ash in a geopolymeric material, Applied Geochemistry,17, 1143-1148
- Topçu, İ.B., Canbaz, M., (2008). Alkali aktive edilmiş yüksek fırın cüruflu harçlarda donma çözülme, ESOGÜ Müh-Mim Fak. Dergisi, Cilt 21, No. 2, ss. 1-16
- Topçu, İ.B., Toprak, U., (2008). Alkalilerle Aktive Edilen Uçucu Külle Hafif Tuğla Üretilmesi, 4. Ulusal Yapı Malzemesi Kongresi ve Sergisi, 12-14 Kasım 2008, İstanbul, Türkiye, ss. 38-45.
- Xu, H., Van Deventer, J.S.J., (2000). The geopolymerisation of alumino-silicate minerals, Int. J. Miner. Process. 59, 247–266
- Yip, C. K., Provis, J. L., Lukey, G. C., Van Deventer, J.S.J., (2008). Carbonate mineral addition to metakaolin-based geopolymers, Cement & Concrete Composites 30, 979–985
- Zhaohui, X., Yunping, X., (2001). Hardening mechanisms of an alkaline activated class F fly ash, Cement and Concrete Research, Vol. 31, pp. 1245-1249
Details
| Journal Section | Articles |
|---|---|
| Authors | |
| Publication Date | June 15, 2017 |
| Submission Date | November 12, 2017 |
| Published in Issue | Year 2017 Volume: 9 Issue: 2 |
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