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.
TY - JOUR
AU - Baščarević, Zvezdana
AU - Komljenović, Miroslav
AU - Miladinović, Zoran P.
AU - Nikolić, Violeta
AU - Marjanović, Nataša
AU - Zujović, Zoran
AU - Petrović, Rada
PY - 2013
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2521
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 and Miladinović, Zoran P. and Nikolić, Violeta and Marjanović, Nataša and Zujović, Zoran and Petrović, Rada",
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., Miladinović, Z. P., Nikolić, V., Marjanović, N., Zujović, Z.,& Petrović, R.. (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 M, Miladinović ZP, Nikolić V, Marjanović N, Zujović Z, Petrović R. 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, Miladinović, Zoran P., Nikolić, Violeta, Marjanović, Nataša, Zujović, Zoran, Petrović, Rada, "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 . .
