Red-clay ceramic powders as geopolymer precursors: Consideration of amorphous portion and CaO content
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU127688" target="_blank" >RIV/00216305:26110/18:PU127688 - isvavai.cz</a>
Alternative codes found
RIV/61388980:_____/18:00489350 RIV/68407700:21110/18:00321367
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0169131718301790" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0169131718301790</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.clay.2018.04.019" target="_blank" >10.1016/j.clay.2018.04.019</a>
Alternative languages
Result language
angličtina
Original language name
Red-clay ceramic powders as geopolymer precursors: Consideration of amorphous portion and CaO content
Original language description
Geopolymers are conventionally prepared from metakaolin, fly ash, or blast furnace slag. In this paper, geopolymer synthesis using two different red-clay ceramic powders and a varying amount of Na2O/SiO2 activator is presented. Experimental results show that despite of the high content of crystalline minerals and lower concentration of amorphous matter, both tested precursors enable to prepare geopolymers with satisfactory mechanical properties. The discussion of measured values of compressive strength with respect to SiO2/Al2O3 and Al2O3/(Na2O+K2O) ratios in the prepared geopolymer mixes reveals that the consideration of only amorphous portion of ceramics is appropriate. A higher content of CaO in the precursor is found to cause a broader pore size distribution and higher porosity of resulting geopolymers, which is due to the formation of calcium silicate hydrates.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20504 - Ceramics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
APPLIED CLAY SCIENCE
ISSN
0169-1317
e-ISSN
1872-9053
Volume of the periodical
2018
Issue of the periodical within the volume
161
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
82-89
UT code for WoS article
000436916600011
EID of the result in the Scopus database
2-s2.0-85045702890