Effect of Heating Temperature on the Properties of Low-Cement Heat Resistant Composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00360296" target="_blank" >RIV/68407700:21110/23:00360296 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/5.0146714" target="_blank" >http://dx.doi.org/10.1063/5.0146714</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0146714" target="_blank" >10.1063/5.0146714</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Heating Temperature on the Properties of Low-Cement Heat Resistant Composites

Popis výsledku v původním jazyce

This study deals with a utilization of super reactive alumina (RA) and boehmite powder (BP) as a partial replacement of calcium aluminate cement (CAC) in refractory composites. These substitutes would have a positive effect on environmental performance of heat-resistant composites, specifically on reducing non-renewable resources consumption, CO2 emissions and on overall performance of the resulting composites as well. In order to study their properties, five mixtures were chosen with different ratio of substitutions of CAC. Mechanical properties (compressive strength, bending strength and dynamic modulus of elasticity) of CAC composites with the above mentioned supplementary materials were focused on. CAC is a primary binder for high temperature application, and therefore the measured properties were determined also after exposure to 400 °C, 1000 °C and 1400 °C. Both admixtures helped to reach better bending and compressive strength than the reference mixture without a replacement of CAC. It was proved that the replacement of CAC with 11.3% RA and 3.8% BP is the optimum combination which significantly improves the properties of the composite and is the most usable for further applications.

Název v anglickém jazyce

Effect of Heating Temperature on the Properties of Low-Cement Heat Resistant Composites

Popis výsledku anglicky

This study deals with a utilization of super reactive alumina (RA) and boehmite powder (BP) as a partial replacement of calcium aluminate cement (CAC) in refractory composites. These substitutes would have a positive effect on environmental performance of heat-resistant composites, specifically on reducing non-renewable resources consumption, CO2 emissions and on overall performance of the resulting composites as well. In order to study their properties, five mixtures were chosen with different ratio of substitutions of CAC. Mechanical properties (compressive strength, bending strength and dynamic modulus of elasticity) of CAC composites with the above mentioned supplementary materials were focused on. CAC is a primary binder for high temperature application, and therefore the measured properties were determined also after exposure to 400 °C, 1000 °C and 1400 °C. Both admixtures helped to reach better bending and compressive strength than the reference mixture without a replacement of CAC. It was proved that the replacement of CAC with 11.3% RA and 3.8% BP is the optimum combination which significantly improves the properties of the composite and is the most usable for further applications.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA20-00653S" target="_blank" >GA20-00653S: Fyzikální a chemické procesy v nízkocementových tepelně odolných kompozitech</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

Central European Symposium on Thermophysics 2022 (CEST 2022)

ISBN

—

ISSN

1551-7616

e-ISSN

1551-7616

Počet stran výsledku

7

Strana od-do

—

Název nakladatele

AIP Conference Proceedings

Místo vydání

New York

Místo konání akce

Olomouc

Datum konání akce

31. 8. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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