Influence of Alkali Cation on the Mechanical Properties and Durability of Fly Ash Based Geopolymers
2013
Аутори
Nikolić, IrenaZejak, Radomir
Janković-Častvan, Ivona
Karanović, Ljiljana
Radmilović, Vuk
Radmilović, Velimir R.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
This research has provided information about the influence of alkali cations (Na+ and K+) on the mechanical properties and durability of fly ash based geopolymers. The results have shown that alkali cations have a strong influence on the mechanical properties of fly ash based geopolymers. K-geopolymers generally reach a higher value of compressive strength in comparison to Na- geopolymers. On the other hand, microstructure and phase composition of fly ash based geopolymers are not influenced by the nature of alkali cations. The ratio of main gel structure forming elements is practically not affected by the nature of alkali cations. Durability of fly ash based geopolymers in different aquatic environments is greatly dependent on the choice of alkali cations. Na-geopolymers are generally more resistant in water and aggressive environments than the K-geopolymers. The best durability of fly ash based geopolymers was observed in sea water.
Кључне речи:
Geopolymerization / fly ash / alkali metal / durability / compressive strength / hydrolytic stabilityИзвор:
Acta Chimica Slovenica, 2013, 60, 3, 636-643Издавач:
- Slovenian Chemical Society
Финансирање / пројекти:
- Ministry of Science of Montenegro [01-460]
- U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-05CH11231]
- Reinforcing of Nanotechnology and Functional Materials Centre (EU-FP7-245916)
- Reinforcing of Nanotechnology and Functional Materials Centre (EU-FP7-245916)
- Serbian Academy of Sciences and Arts
- Развој, карактеризација и примена наноструктуираних композитних катализатора и интерактивних носача у горивним спреговима и електролизи воде (RS-MESTD-Basic Research (BR or ON)-172054)
- 0-3D наноструктуре за примену у електроници и обновљивим изворима енергије: синтеза, карактеризација и процесирање (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45007)
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Nikolić, Irena AU - Zejak, Radomir AU - Janković-Častvan, Ivona AU - Karanović, Ljiljana AU - Radmilović, Vuk AU - Radmilović, Velimir R. PY - 2013 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2273 AB - This research has provided information about the influence of alkali cations (Na+ and K+) on the mechanical properties and durability of fly ash based geopolymers. The results have shown that alkali cations have a strong influence on the mechanical properties of fly ash based geopolymers. K-geopolymers generally reach a higher value of compressive strength in comparison to Na- geopolymers. On the other hand, microstructure and phase composition of fly ash based geopolymers are not influenced by the nature of alkali cations. The ratio of main gel structure forming elements is practically not affected by the nature of alkali cations. Durability of fly ash based geopolymers in different aquatic environments is greatly dependent on the choice of alkali cations. Na-geopolymers are generally more resistant in water and aggressive environments than the K-geopolymers. The best durability of fly ash based geopolymers was observed in sea water. PB - Slovenian Chemical Society T2 - Acta Chimica Slovenica T1 - Influence of Alkali Cation on the Mechanical Properties and Durability of Fly Ash Based Geopolymers EP - 643 IS - 3 SP - 636 VL - 60 UR - https://hdl.handle.net/21.15107/rcub_technorep_2273 ER -
@article{ author = "Nikolić, Irena and Zejak, Radomir and Janković-Častvan, Ivona and Karanović, Ljiljana and Radmilović, Vuk and Radmilović, Velimir R.", year = "2013", abstract = "This research has provided information about the influence of alkali cations (Na+ and K+) on the mechanical properties and durability of fly ash based geopolymers. The results have shown that alkali cations have a strong influence on the mechanical properties of fly ash based geopolymers. K-geopolymers generally reach a higher value of compressive strength in comparison to Na- geopolymers. On the other hand, microstructure and phase composition of fly ash based geopolymers are not influenced by the nature of alkali cations. The ratio of main gel structure forming elements is practically not affected by the nature of alkali cations. Durability of fly ash based geopolymers in different aquatic environments is greatly dependent on the choice of alkali cations. Na-geopolymers are generally more resistant in water and aggressive environments than the K-geopolymers. The best durability of fly ash based geopolymers was observed in sea water.", publisher = "Slovenian Chemical Society", journal = "Acta Chimica Slovenica", title = "Influence of Alkali Cation on the Mechanical Properties and Durability of Fly Ash Based Geopolymers", pages = "643-636", number = "3", volume = "60", url = "https://hdl.handle.net/21.15107/rcub_technorep_2273" }
Nikolić, I., Zejak, R., Janković-Častvan, I., Karanović, L., Radmilović, V.,& Radmilović, V. R.. (2013). Influence of Alkali Cation on the Mechanical Properties and Durability of Fly Ash Based Geopolymers. in Acta Chimica Slovenica Slovenian Chemical Society., 60(3), 636-643. https://hdl.handle.net/21.15107/rcub_technorep_2273
Nikolić I, Zejak R, Janković-Častvan I, Karanović L, Radmilović V, Radmilović VR. Influence of Alkali Cation on the Mechanical Properties and Durability of Fly Ash Based Geopolymers. in Acta Chimica Slovenica. 2013;60(3):636-643. https://hdl.handle.net/21.15107/rcub_technorep_2273 .
Nikolić, Irena, Zejak, Radomir, Janković-Častvan, Ivona, Karanović, Ljiljana, Radmilović, Vuk, Radmilović, Velimir R., "Influence of Alkali Cation on the Mechanical Properties and Durability of Fly Ash Based Geopolymers" in Acta Chimica Slovenica, 60, no. 3 (2013):636-643, https://hdl.handle.net/21.15107/rcub_technorep_2273 .