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Composition of red mud and/or metakaolin-based modified geopolymers

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2017
1790.pdf (1.386Mb)
Authors
Vukčević, Mira
Bošković, Ivana
Nenadović, Snežana S.
Mirković, Miljana M.
Čalija, Bojan
Pavlović, Vladimir B.
Kljajević, Ljiljana M.
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Abstract
There is potential use of red mud for synthesis of inorganic polymeric materials through a geopolymerization process as an alternative in the sectors of construction and building materials. By introducing of inorganic and organic modificators of microstructure (calcium hydroxide, bifunctional epoxy resins, or various types of alkoxylanes) during the geopolymer synthesis the enhanced values of ductility and strength can be obtained. Research was performed on alumosilicate material (red mud and metakaolin) and alkali activator raw mixture with defined quantity of modificator. The best sinthesys conditions were identified. Post-synthesis curing also play important role in obtaining of good-performing geopolymers. Characteristics of geopolymers were defined by measuring of compressive strength, N2-physisorption, as well as by SEM analysis, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). In addition the lower value of zeta potential was identified as the assistin...g factor for the specific structure domains formation (within the certain range of pH) accompanied by the high compressive strength.

Keywords:
mud / metakaolin / geopolymers / microstructure
Source:
Programme and The Book of Abstracts / Nineteenth Annual Conference YUCOMAT 2017, Herceg Novi, September 4-8, 2017, 2017, 72-72
Publisher:
  • Belgrade : Materials Research Society of Serbia

ISBN: 9788691911126

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_dais_15438
URI
http://dais.sanu.ac.rs/123456789/15438
http://aspace.agrif.bg.ac.rs/handle/123456789/5721
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Poljoprivredni fakultet

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