Alkali-activated waste ceramics: Importance of precursor particle size distribution
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00355349" target="_blank" >RIV/68407700:21110/21:00355349 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.ceramint.2021.08.037" target="_blank" >https://doi.org/10.1016/j.ceramint.2021.08.037</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ceramint.2021.08.037" target="_blank" >10.1016/j.ceramint.2021.08.037</a>
Alternative languages
Result language
angličtina
Original language name
Alkali-activated waste ceramics: Importance of precursor particle size distribution
Original language description
The waste ceramics belongs to wide range of aluminosilicate materials which can be alkaline-activated to geopolymer cement - possible "green" alternative to conventional Portland cement. The studied ceramic material is generated during the size adjustment of ceramic building blocks by means of grinding. It means that most of the material is very fine, but it contains also some larger shards. This ceramic powder was used as geopolymer precursor "as received" and after removal of particles retained on 1, 0.5 and 0.125 mm sieves. These four types of precursor were activated by sodium silicate (SiO2/Na2O = 1) solution. The prepared mortars were tested for strength, basic physical properties, transport parameters and characterized by help of XRD and thermal analysis. It was found that the best mechanical performance provided the precursor after removal of particles retained on 0.5 mm sieve thanks to the highest geopolymerization rate. The presence of coarser particles in precursor gave rise to porosity, what consequently influenced transport parameter of geopolymers towards the lower thermal conductivity and faster moisture transport.
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
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/GA19-01982S" target="_blank" >GA19-01982S: Alkali activated aluminosilicate composites based on ceramic precursors</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ceramics International
ISSN
0272-8842
e-ISSN
1873-3956
Volume of the periodical
47
Issue of the periodical within the volume
22
Country of publishing house
IT - ITALY
Number of pages
9
Pages from-to
31574-31582
UT code for WoS article
000702559800005
EID of the result in the Scopus database
2-s2.0-85112186897