Research Article
Pomza agregası içeren hafif geopolimer kompozitin ötojen rötre ve mikroyapısal özelliklerinin değerlendirilmesi
Abstract
Geopolimer üretimi, çimento kullanımının devre dışı bırakılarak yapı sektörüne alternatif bağlayıcı malzeme sunulmasına olanak sağlamaktadır. Bu çalışmada, farklı sodyum hidroksit (SH) molariteleri, sodyum silikat/sodyum hidroksit (SS/SH) oranları ve alkali/uçucu kül (A/UK) oranları ile hazırlanan jeopolimer kompozitlerin mikroyapısal özelliklerinin yanı sıra otojen büzülme sonuçları da araştırılmıştır. A/UK, SS/SH oranlarının düşmesi ve SH molaritesinin artması basınç dayanımının artmasına rötre değerlerinin ise azalmasına neden olmuştur. XRD sonuçları irdelendiğinde, SH konsantrasyonundaki artışın geopolimer jeldeki fazların yeniden düzenlenmesine ve basınç dayanımında iyileşme ile sonuçlanan daha yüksek miktarda reaksiyon ürünü oluşumuna olanak sağladığı görülmüştür. Ayrıca FTIR sonuçları göstermiştir ki, A/UK oranının 0.55'ten 0.45'e düşmesi 3400 cm-1 civarında daha yüksek absorbans spektrumları ile geopolimerizasyon aşamasında daha fazla suyun bağlanması ile sonuçlanmıştır.
Keywords
References
- ABDALQADER, A. F., JİN, F. and AL-TABBAA, A., 2016. Development of greener alkali-activated cement: utilisation of sodium carbonate for activating slag and fly ash mixtures. Journal of Cleaner Production, 113: 66–75.
- ASTM, C., 2009. 597, Standard test method for pulse velocity through concrete. ASTM International, West Conshohocken, PA.
- CRİADO, M., PALOMO, A., and FERNÁNDEZ-JİMÉNEZ, A., 2005. Alkali activation of fly ashes. Part 1: Effect of curing conditions on the carbonation of the reaction products. Fuel, 84(16): 2048-2054.
- CUİ, Y., WANG, D., WANG, Y., SUN, R., and RUİ, Y., 2019. Effects of the n (H2O: Na2Oeq) ratio on the geopolymerization process and microstructures of fly ash-based geopolymers. Journal of Non-Crystalline Solids, 511: 19-28. EKMEN, Ş., 2021. Uçucu kül esaslı hafif geopolimer harçların taze ve sertleşmiş özelliklerinin incelenmesi, modellenmesi ve optimizasyonu. Doktora tezi, Harran Üniversitesi, 129.
- EKMEN, Ş., MERMERDAŞ, K., and ALGIN, Z., 2021. Effect of oxide composition and ingredient proportions on the rheological and mechanical properties of geopolymer mortar incorporating pumice aggregate. Journal of Building Engineering, 34, 101893.
- FARMER, V. C., 1974. Infrared spectra of minerals. Mineralogical society.
- GİANNOPOULOU, I., and PANİAS, D., 2010. Hydrolytic stability of sodium silicate gels in the presence of aluminum. J. Mater. Sci, 45 (19): 370–5377.
- KAYALI, O., 2008. Fly ash lightweight aggregates in high performance concrete. Construction and Building Materials, 22(12):2393-2399.
- KOVTUN, M., KEARSLEY, E. P., and SHEKHOVTSOVA, J., 2015. Chemical acceleration of a neutral granulated blast-furnace slag activated by sodium carbonate. Cement and Concrete Research, 72: 1-9.
- NEVILLE, A. M., 1995. Properties of concrete. Vol. 4. London: Longman.
- PEREİRA, A., AKASAKİ, J. L., MELGES, J. L., TASHİMA, M. M., SORİANO, L., BORRACHERO, M. V., and PAYÁ, J., 2015. Mechanical and durability properties of alkali-activated mortar based on sugarcane bagasse ash and blast furnace slag. Ceramics International, 41(10): 13012-13024.
- POSI, P., TEERACHANWIT, C., TANUTONG, C., LIMKAMOLTIP, S., LERTNIMOOLCHAI, S., SATA, V., and CHINDAPRASIRT, P., 2013. Lightweight geopolymer concrete containing aggregate from recycle lightweight block. Materials and Design, 52:580-586.
- RAHİER, H., SİMONS, W., MELE, B.V., and BİESEMANS, M., 1997. Low-temperature synthesized aluminosilicate glasses: Part III Influence of the composition of the silicate solution on production, structure and properties, J. Mater. Sci. 32(9): 2237–2247.
- RANGAN, B. V., 2008. Fly ash-based geopolymer concrete.
- WONGSA, A., SATA, V., NUAKLONG, P., and CHINDAPRASIRT, P., 2018. Use of crushed clay brick and pumice aggregates in lightweight geopolymer concrete. Construction and Building Materials, 188:1025-1034.
- YİP, C. K., PROVİS, J. L., LUKEY, G. C., and VAN DEVENTER, J. S., 2008. Carbonate mineral addition to metakaolin-based geopolymers. Cement and Concrete Composites, 30(10): 979-985.
- ZAREEI, S. A., AMERI, F., and BAHRAMI, N., 2018. Microstructure, strength, and durability of eco-friendly concretes containing sugarcane bagasse ash. Construction and Building Materials, 184:258-268.
Year 2022,
Volume: 7 Issue: 3, 113 - 127, 30.12.2022
Abstract
References
- ABDALQADER, A. F., JİN, F. and AL-TABBAA, A., 2016. Development of greener alkali-activated cement: utilisation of sodium carbonate for activating slag and fly ash mixtures. Journal of Cleaner Production, 113: 66–75.
- ASTM, C., 2009. 597, Standard test method for pulse velocity through concrete. ASTM International, West Conshohocken, PA.
- CRİADO, M., PALOMO, A., and FERNÁNDEZ-JİMÉNEZ, A., 2005. Alkali activation of fly ashes. Part 1: Effect of curing conditions on the carbonation of the reaction products. Fuel, 84(16): 2048-2054.
- CUİ, Y., WANG, D., WANG, Y., SUN, R., and RUİ, Y., 2019. Effects of the n (H2O: Na2Oeq) ratio on the geopolymerization process and microstructures of fly ash-based geopolymers. Journal of Non-Crystalline Solids, 511: 19-28. EKMEN, Ş., 2021. Uçucu kül esaslı hafif geopolimer harçların taze ve sertleşmiş özelliklerinin incelenmesi, modellenmesi ve optimizasyonu. Doktora tezi, Harran Üniversitesi, 129.
- EKMEN, Ş., MERMERDAŞ, K., and ALGIN, Z., 2021. Effect of oxide composition and ingredient proportions on the rheological and mechanical properties of geopolymer mortar incorporating pumice aggregate. Journal of Building Engineering, 34, 101893.
- FARMER, V. C., 1974. Infrared spectra of minerals. Mineralogical society.
- GİANNOPOULOU, I., and PANİAS, D., 2010. Hydrolytic stability of sodium silicate gels in the presence of aluminum. J. Mater. Sci, 45 (19): 370–5377.
- KAYALI, O., 2008. Fly ash lightweight aggregates in high performance concrete. Construction and Building Materials, 22(12):2393-2399.
- KOVTUN, M., KEARSLEY, E. P., and SHEKHOVTSOVA, J., 2015. Chemical acceleration of a neutral granulated blast-furnace slag activated by sodium carbonate. Cement and Concrete Research, 72: 1-9.
- NEVILLE, A. M., 1995. Properties of concrete. Vol. 4. London: Longman.
- PEREİRA, A., AKASAKİ, J. L., MELGES, J. L., TASHİMA, M. M., SORİANO, L., BORRACHERO, M. V., and PAYÁ, J., 2015. Mechanical and durability properties of alkali-activated mortar based on sugarcane bagasse ash and blast furnace slag. Ceramics International, 41(10): 13012-13024.
- POSI, P., TEERACHANWIT, C., TANUTONG, C., LIMKAMOLTIP, S., LERTNIMOOLCHAI, S., SATA, V., and CHINDAPRASIRT, P., 2013. Lightweight geopolymer concrete containing aggregate from recycle lightweight block. Materials and Design, 52:580-586.
- RAHİER, H., SİMONS, W., MELE, B.V., and BİESEMANS, M., 1997. Low-temperature synthesized aluminosilicate glasses: Part III Influence of the composition of the silicate solution on production, structure and properties, J. Mater. Sci. 32(9): 2237–2247.
- RANGAN, B. V., 2008. Fly ash-based geopolymer concrete.
- WONGSA, A., SATA, V., NUAKLONG, P., and CHINDAPRASIRT, P., 2018. Use of crushed clay brick and pumice aggregates in lightweight geopolymer concrete. Construction and Building Materials, 188:1025-1034.
- YİP, C. K., PROVİS, J. L., LUKEY, G. C., and VAN DEVENTER, J. S., 2008. Carbonate mineral addition to metakaolin-based geopolymers. Cement and Concrete Composites, 30(10): 979-985.
- ZAREEI, S. A., AMERI, F., and BAHRAMI, N., 2018. Microstructure, strength, and durability of eco-friendly concretes containing sugarcane bagasse ash. Construction and Building Materials, 184:258-268.
There are 17 citations in total.
Details
| Primary Language | Turkish |
|---|---|
| Subjects | Civil Engineering |
| Journal Section | Research Articles |
| Authors | |
| Early Pub Date | October 11, 2022 |
| Publication Date | December 30, 2022 |
| Submission Date | March 31, 2022 |
| Acceptance Date | September 9, 2022 |
| Published in Issue | Year 2022 Volume: 7 Issue: 3 |
