Synthesis and sintering of high-temperature composites based on mechanically activated fly ash

2012
Authors
Terzić, Anja
Pavlović, Ljubica
Obradović, Nina

Pavlović, Vladimir B.

Stojanović, J.
Miličić, Lj.
Radojević, Zagorka

Ristić, Momčilo M.
Contributors
Ristić, Momčilo M.Article (Published version)
Metadata
Show full item recordAbstract
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. [Projekat Ministarstva nauke Republike Srbije, br. 172057, 45008 and a project F-198, financed by Serbian Academy of Sciences and Arts]
Keywords:
fly ash / Mechanical activation / sintering / high-temperature performance / recyclingSource:
Science of Sintering, 2012, 44, 2, 135-146Publisher:
- Belgrade : International Institute for the Science of Sintering
Funding / projects:
- Directed synthesis, structure and properties of multifunctional materials (RS-172057)
- Development and application of multifunctional materials using domestic raw materials in upgraded processing lines (RS-45008)
DOI: 10.2298/SOS1202135T
ISSN: 1820-7413 (Online); 0350-820X
WoS: 000318148600002
Scopus: 2-s2.0-84866409449
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Terzić, Anja AU - Pavlović, Ljubica AU - Obradović, Nina AU - Pavlović, Vladimir B. AU - Stojanović, J. AU - Miličić, Lj. AU - Radojević, Zagorka AU - Ristić, Momčilo M. PY - 2012 UR - https://dais.sanu.ac.rs/123456789/193 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. [Projekat Ministarstva nauke Republike Srbije, br. 172057, 45008 and a project F-198, financed by Serbian Academy of Sciences and Arts] PB - Belgrade : International Institute for the Science of Sintering T2 - Science of Sintering T1 - Synthesis and sintering of high-temperature composites based on mechanically activated fly ash SP - 135 EP - 146 VL - 44 IS - 2 DO - 10.2298/SOS1202135T UR - https://hdl.handle.net/21.15107/rcub_dais_193 ER -
@article{ author = "Terzić, Anja and Pavlović, Ljubica and Obradović, Nina and Pavlović, Vladimir B. and Stojanović, J. and Miličić, Lj. and Radojević, Zagorka and Ristić, Momčilo 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. [Projekat Ministarstva nauke Republike Srbije, br. 172057, 45008 and a project F-198, financed by Serbian Academy of Sciences and Arts]", publisher = "Belgrade : International Institute for the Science of Sintering", journal = "Science of Sintering", title = "Synthesis and sintering of high-temperature composites based on mechanically activated fly ash", pages = "135-146", volume = "44", number = "2", doi = "10.2298/SOS1202135T", url = "https://hdl.handle.net/21.15107/rcub_dais_193" }
Terzić, A., Pavlović, L., Obradović, N., Pavlović, V. B., Stojanović, J., Miličić, Lj., Radojević, Z.,& Ristić, M. M.. (2012). Synthesis and sintering of high-temperature composites based on mechanically activated fly ash. in Science of Sintering Belgrade : International Institute for the Science of Sintering., 44(2), 135-146. https://doi.org/10.2298/SOS1202135T https://hdl.handle.net/21.15107/rcub_dais_193
Terzić A, Pavlović L, Obradović N, Pavlović VB, Stojanović J, Miličić L, Radojević Z, Ristić MM. 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 https://hdl.handle.net/21.15107/rcub_dais_193 .
Terzić, Anja, Pavlović, Ljubica, Obradović, Nina, Pavlović, Vladimir B., Stojanović, J., Miličić, Lj., Radojević, Zagorka, Ristić, Momčilo 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 ., https://hdl.handle.net/21.15107/rcub_dais_193 .