Effects of the concentrated NH4NO3 solution on mechanical properties and structure of the fly ash based geopolymers
Само за регистроване кориснике
2013
Аутори
Baščarević, ZvezdanaKomljenović, Miroslav M
Miladinović, Zoran P.
Nikolić, Violeta
Džunuzović, Nataša
Zujović, Zoran D
Petrović, Rada D
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The geopolymers based on fly ash were exposed to the concentrated (6 M) NH4NO3 solution for 540 days. The highest compressive strength decrease occurred in the initial 28 days testing period. Study of the effects of the NH4NO3 solution on the geopolymer structure indicated leaching of alkali and alkaline earth cations and breaking of -Si-O-Al- bonds in aluminosilicate gel. The reduction of compressive strength of the geopolymers was associated with the structural defects in the aluminosilicate gel created by breaking of -Si-O-Al- bonds. Subsequent fluctuation in compressive strength was a result of the structural defects reparation by silicon.
Кључне речи:
NH4NO3 / Leaching / Geopolymer / Durability / DealuminationИзвор:
Construction and Building Materials, 2013, 41, 570-579Издавач:
- Elsevier Sci Ltd, Oxford
Финансирање / пројекти:
- Геополимери - Развој технологије за конверзију индустријског отпада у функционалне материјале (RS-MESTD-Technological Development (TD or TR)-34026)
DOI: 10.1016/j.conbuildmat.2012.12.067
ISSN: 0950-0618
WoS: 000317528900064
Scopus: 2-s2.0-84873881682
Институција/група
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Baščarević, Zvezdana AU - Komljenović, Miroslav M AU - Miladinović, Zoran P. AU - Nikolić, Violeta AU - Džunuzović, Nataša AU - Zujović, Zoran D AU - Petrović, Rada D PY - 2013 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/724 AB - The geopolymers based on fly ash were exposed to the concentrated (6 M) NH4NO3 solution for 540 days. The highest compressive strength decrease occurred in the initial 28 days testing period. Study of the effects of the NH4NO3 solution on the geopolymer structure indicated leaching of alkali and alkaline earth cations and breaking of -Si-O-Al- bonds in aluminosilicate gel. The reduction of compressive strength of the geopolymers was associated with the structural defects in the aluminosilicate gel created by breaking of -Si-O-Al- bonds. Subsequent fluctuation in compressive strength was a result of the structural defects reparation by silicon. PB - Elsevier Sci Ltd, Oxford T2 - Construction and Building Materials T1 - Effects of the concentrated NH4NO3 solution on mechanical properties and structure of the fly ash based geopolymers EP - 579 SP - 570 VL - 41 DO - 10.1016/j.conbuildmat.2012.12.067 ER -
@article{ author = "Baščarević, Zvezdana and Komljenović, Miroslav M and Miladinović, Zoran P. and Nikolić, Violeta and Džunuzović, Nataša and Zujović, Zoran D and Petrović, Rada D", year = "2013", abstract = "The geopolymers based on fly ash were exposed to the concentrated (6 M) NH4NO3 solution for 540 days. The highest compressive strength decrease occurred in the initial 28 days testing period. Study of the effects of the NH4NO3 solution on the geopolymer structure indicated leaching of alkali and alkaline earth cations and breaking of -Si-O-Al- bonds in aluminosilicate gel. The reduction of compressive strength of the geopolymers was associated with the structural defects in the aluminosilicate gel created by breaking of -Si-O-Al- bonds. Subsequent fluctuation in compressive strength was a result of the structural defects reparation by silicon.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Construction and Building Materials", title = "Effects of the concentrated NH4NO3 solution on mechanical properties and structure of the fly ash based geopolymers", pages = "579-570", volume = "41", doi = "10.1016/j.conbuildmat.2012.12.067" }
Baščarević, Z., Komljenović, M. M., Miladinović, Z. P., Nikolić, V., Džunuzović, N., Zujović, Z. D.,& Petrović, R. D.. (2013). Effects of the concentrated NH4NO3 solution on mechanical properties and structure of the fly ash based geopolymers. in Construction and Building Materials Elsevier Sci Ltd, Oxford., 41, 570-579. https://doi.org/10.1016/j.conbuildmat.2012.12.067
Baščarević Z, Komljenović MM, Miladinović ZP, Nikolić V, Džunuzović N, Zujović ZD, Petrović RD. Effects of the concentrated NH4NO3 solution on mechanical properties and structure of the fly ash based geopolymers. in Construction and Building Materials. 2013;41:570-579. doi:10.1016/j.conbuildmat.2012.12.067 .
Baščarević, Zvezdana, Komljenović, Miroslav M, Miladinović, Zoran P., Nikolić, Violeta, Džunuzović, Nataša, Zujović, Zoran D, Petrović, Rada D, "Effects of the concentrated NH4NO3 solution on mechanical properties and structure of the fly ash based geopolymers" in Construction and Building Materials, 41 (2013):570-579, https://doi.org/10.1016/j.conbuildmat.2012.12.067 . .