The study of firing of a ceramic body made from illite and fluidized bed combustion fly ash

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00306216" target="_blank" >RIV/68407700:21110/17:00306216 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s10973-016-5477-8" target="_blank" >http://dx.doi.org/10.1007/s10973-016-5477-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10973-016-5477-8" target="_blank" >10.1007/s10973-016-5477-8</a>

Result language

angličtina

Original language name

The study of firing of a ceramic body made from illite and fluidized bed combustion fly ash

Original language description

Fly ash from coal combusting thermal power plants is a serious problem from the point of view of its storing and pollution of the environment. Currently, thermal power plants change the combustion technology from pulverized firing to fluidized bed combustion. A promising reutilization of the fly ash from fluidized bed combustion (FFA) shows itself in the ceramic industry. In this paper, the influence of the FFA content in illite-based ceramics on its thermophysical and elastic properties was investigated during heating and cooling stages of firing. The samples are made from a mixture of the illitic clay (60 mass%), various portion of FFA (0–40 mass%) and grog (40–0 mass%). The impulse excitation technique is used for the determination of Young’s modulus and the internal friction. Analyses that included DTA, TG, thermodilatometry, XRD and SEM are used to obtain the better understanding of the development of the phase transformations in the samples. It is found that a higher amount of FFA in the sample leads to a higher mass loss at low temperatures, a higher mass loss due to the decomposition of calcite, a less intensive shrinkage after firing, a lower bulk density and lower Young’s modulus during firing above 800 C and after cooling. After firing of the samples at 1100 C, the mechanical strength and Young’s modulus decrease with the FFA content. A linear relationship between Young’s modulus and the mechanical strength is observed.

Czech name

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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

20504 - Ceramics

Project

<a href="/en/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Cumulative time dependent processes in building materials and structures</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

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

127

Issue of the periodical within the volume

1

Country of publishing house

HU - HUNGARY

Number of pages

11

Pages from-to

79-89

UT code for WoS article

000392337000009

EID of the result in the Scopus database

2-s2.0-84964426643