Phase composition of ceramic-based alkali-activated polymers: combination of X-ray diffraction and thermal analysis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00340932" target="_blank" >RIV/68407700:21110/20:00340932 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/s10973-020-09369-5" target="_blank" >https://doi.org/10.1007/s10973-020-09369-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10973-020-09369-5" target="_blank" >10.1007/s10973-020-09369-5</a>

Result language

angličtina

Original language name

Phase composition of ceramic-based alkali-activated polymers: combination of X-ray diffraction and thermal analysis

Original language description

Alkali-activated aluminosilicate polymers (AAP, geopolymers) are potentially able to replace partially the Portland cement production-and thus related energy consumption and CO2 emissions. Another benefit of AAP lies in possibility to prepare AAP from numerous aluminosilicate wastes. Besides the widely studied fly ash and blast furnace slag, also waste ceramic materials can be used. The present paper deals with preparation of AAP from alkali-activated red-clay ceramics. This material is specific, when compared to other AAP precursors, with lower amount of amorphous phase. The ceramic waste was activated by sodium silicate solution of various silicate moduli. The composition of the prepared materials was examined with the help of thermogravimetry and X-ray diffraction. Activated aluminosilicates are roentgen-amorphous, and thus, they are not directly detected by XRD; nevertheless, XRD can quantify the content of crystalline minerals and amorphous portion of material. Thermogravimetry was used in order to determine the amount of chemically bound water. Combination of these methods enabled to determine empirical formula of the activated material. Mixture of N-A-S-H and C-A-S-H products was identified; amount of C-A-S-H positively influenced the compressive strength of the prepared materials.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20101 - Civil engineering

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)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Thermal Analysis and Calorimetry

ISSN

1388-6150

e-ISSN

1588-2926

Volume of the periodical

142

Issue of the periodical within the volume

1

Country of publishing house

HU - HUNGARY

Number of pages

10

Pages from-to

157-166

UT code for WoS article

000510102300009

EID of the result in the Scopus database

2-s2.0-85078773551