Investigation of the Joule's effect in electrically enhanced alkali-activated aluminosilicates

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00312711" target="_blank" >RIV/68407700:21110/17:00312711 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26110/17:PU124528

Výsledek na webu

<a href="http://www.cementwapnobeton.pl/en/?s=12&action=getArticle&aid=1093&t=Investigation+of+the+Joule%26%238217%3Bs+effect+in+electrically+enhanced+alkali-activated+aluminosilicates" target="_blank" >http://www.cementwapnobeton.pl/en/?s=12&action=getArticle&aid=1093&t=Investigation+of+the+Joule%26%238217%3Bs+effect+in+electrically+enhanced+alkali-activated+aluminosilicates</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of the Joule's effect in electrically enhanced alkali-activated aluminosilicates

Popis výsledku v původním jazyce

Alkali-activated aluminosilicates (AAA) are thanks to their high strength, enhanced fire resistance and good chemical resistance promising building materials. Furthermore, many AAA can be viewed as eco-friendly economically advantageous materials due to the fact that some industrial byproducts available for a reasonable price, such as blast-furnace slag or fly ash, can be used as their main components. Therefore, AAA can be considered as good competitors to widely used cement-based materials. AAA are in general electrically non-conductive. However, adding a sufficient amount of electrically conductive admixtures significantly decreases their electrical resistivity which broaden application possibilities. Enhanced materials can be used as self-heating or self-sensing systems. In the paper, AAA samples made of blast-furnace slag, water glass as an alkali activator, filler represented by three fractions of sand and electrically conductive admixtures were prepared. The ability to generate Joule heat is tested on samples loaded by an external DC electric source by means of measurements of temperature by K-type thermocouples in chosen points on samples. The obtained experimental data make it possible to identify a promising AAA which exhibits a sufficient increase of temperature in room conditions and can be utilized well in practical applications.

Název v anglickém jazyce

Investigation of the Joule's effect in electrically enhanced alkali-activated aluminosilicates

Popis výsledku anglicky

Alkali-activated aluminosilicates (AAA) are thanks to their high strength, enhanced fire resistance and good chemical resistance promising building materials. Furthermore, many AAA can be viewed as eco-friendly economically advantageous materials due to the fact that some industrial byproducts available for a reasonable price, such as blast-furnace slag or fly ash, can be used as their main components. Therefore, AAA can be considered as good competitors to widely used cement-based materials. AAA are in general electrically non-conductive. However, adding a sufficient amount of electrically conductive admixtures significantly decreases their electrical resistivity which broaden application possibilities. Enhanced materials can be used as self-heating or self-sensing systems. In the paper, AAA samples made of blast-furnace slag, water glass as an alkali activator, filler represented by three fractions of sand and electrically conductive admixtures were prepared. The ability to generate Joule heat is tested on samples loaded by an external DC electric source by means of measurements of temperature by K-type thermocouples in chosen points on samples. The obtained experimental data make it possible to identify a promising AAA which exhibits a sufficient increase of temperature in room conditions and can be utilized well in practical applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA16-00567S" target="_blank" >GA16-00567S: Alkalicky aktivované aluminosilikátové kompozity se zvýšenou elektrickou vodivostí</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Cement Wapno Beton

ISSN

1425-8129

e-ISSN

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Svazek periodika

22

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

10

Strana od-do

"201"-"+"

Kód UT WoS článku

000406256500002

EID výsledku v databázi Scopus

2-s2.0-85028990813