Amount of fly ash which is and yet to be generated in the coming years highlights the necessity of developing new methods of the recycling where this waste can be reused in significant quantity. A new possibility for fly ash utilization is in high-temperature application (thermal insulators or/and refractory material products). As such, fly ash has to adequately answer the mechanical and thermal stability criteria. One of the ways of achieving it is by applying mechanical activation procedure on fly ash. In present study, fly ashes from two different power plants were mechanically activated in a planetary ball mill. Mechanically treated fly ashes were cemented with two different binders: standard Portland cement and high-aluminates cement. Physico-chemical analysis and investigation of mineralogical components of composites are emphasized, due to the changes occurred in fly ash during mechanical activation and sintering of composites. Macro-performance of the composites was correlated ...to the microstructure of fly ash studied by means of XRD and SEM analysis. Thermal stability of crystalline phases was investigated with DTA. Highlight was placed on determination of relationship between mechanically activated fly ash and obtained composites microstructure on one side and behavior of sintered composites on the other side.
TY - JOUR
AU - Terzić, Anja
AU - Pavlović, Ljubica
AU - Obradović, N.
AU - Pavlović, Vladimir
AU - Stojanović, J.
AU - Milicić, Lj.
AU - Radojević, Z.
AU - Ristić, M.M.
PY - 2012
UR - http://aspace.agrif.bg.ac.rs/handle/123456789/3064
AB - Amount of fly ash which is and yet to be generated in the coming years highlights the necessity of developing new methods of the recycling where this waste can be reused in significant quantity. A new possibility for fly ash utilization is in high-temperature application (thermal insulators or/and refractory material products). As such, fly ash has to adequately answer the mechanical and thermal stability criteria. One of the ways of achieving it is by applying mechanical activation procedure on fly ash. In present study, fly ashes from two different power plants were mechanically activated in a planetary ball mill. Mechanically treated fly ashes were cemented with two different binders: standard Portland cement and high-aluminates cement. Physico-chemical analysis and investigation of mineralogical components of composites are emphasized, due to the changes occurred in fly ash during mechanical activation and sintering of composites. Macro-performance of the composites was correlated to the microstructure of fly ash studied by means of XRD and SEM analysis. Thermal stability of crystalline phases was investigated with DTA. Highlight was placed on determination of relationship between mechanically activated fly ash and obtained composites microstructure on one side and behavior of sintered composites on the other side.
PB - Međunarodni Institut za nauku o sinterovanju, Beograd
T2 - Science of Sintering
T1 - Synthesis and Sintering of High-temperature Composites Based on Mechanically Activated Fly Ash
EP - 146
IS - 2
SP - 135
VL - 44
DO - 10.2298/SOS1202135T
ER -
@article{
author = "Terzić, Anja and Pavlović, Ljubica and Obradović, N. and Pavlović, Vladimir and Stojanović, J. and Milicić, Lj. and Radojević, Z. and Ristić, M.M.",
year = "2012",
abstract = "Amount of fly ash which is and yet to be generated in the coming years highlights the necessity of developing new methods of the recycling where this waste can be reused in significant quantity. A new possibility for fly ash utilization is in high-temperature application (thermal insulators or/and refractory material products). As such, fly ash has to adequately answer the mechanical and thermal stability criteria. One of the ways of achieving it is by applying mechanical activation procedure on fly ash. In present study, fly ashes from two different power plants were mechanically activated in a planetary ball mill. Mechanically treated fly ashes were cemented with two different binders: standard Portland cement and high-aluminates cement. Physico-chemical analysis and investigation of mineralogical components of composites are emphasized, due to the changes occurred in fly ash during mechanical activation and sintering of composites. Macro-performance of the composites was correlated to the microstructure of fly ash studied by means of XRD and SEM analysis. Thermal stability of crystalline phases was investigated with DTA. Highlight was placed on determination of relationship between mechanically activated fly ash and obtained composites microstructure on one side and behavior of sintered composites on the other side.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Synthesis and Sintering of High-temperature Composites Based on Mechanically Activated Fly Ash",
pages = "146-135",
number = "2",
volume = "44",
doi = "10.2298/SOS1202135T"
}
Terzić, A., Pavlović, L., Obradović, N., Pavlović, V., Stojanović, J., Milicić, Lj., Radojević, Z.,& Ristić, M.M.. (2012). Synthesis and Sintering of High-temperature Composites Based on Mechanically Activated Fly Ash. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 44(2), 135-146.
https://doi.org/10.2298/SOS1202135T
Terzić A, Pavlović L, Obradović N, Pavlović V, Stojanović J, Milicić L, Radojević Z, Ristić M. Synthesis and Sintering of High-temperature Composites Based on Mechanically Activated Fly Ash. in Science of Sintering. 2012;44(2):135-146.
doi:10.2298/SOS1202135T .
Terzić, Anja, Pavlović, Ljubica, Obradović, N., Pavlović, Vladimir, Stojanović, J., Milicić, Lj., Radojević, Z., Ristić, M.M., "Synthesis and Sintering of High-temperature Composites Based on Mechanically Activated Fly Ash" in Science of Sintering, 44, no. 2 (2012):135-146,
https://doi.org/10.2298/SOS1202135T . .
