Self-heating ability of geopolymers enhanced by carbon black admixtures at different voltage loads

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F75081431%3A_____%2F19%3A00001658" target="_blank" >RIV/75081431:_____/19:00001658 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21110/19:00334522

Result on the web

<a href="https://www.mdpi.com/1996-1073/12/21/4121/htm" target="_blank" >https://www.mdpi.com/1996-1073/12/21/4121/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/en12214121" target="_blank" >10.3390/en12214121</a>

Result language

angličtina

Original language name

Self-heating ability of geopolymers enhanced by carbon black admixtures at different voltage loads

Original language description

Sustainable development in the construction industry can be achieved by the design of multifunctional materials with good mechanical properties, durability, and reasonable environmental impacts. New functional properties, such as self-sensing, self-heating, or energy harvesting, are crucially dependent on electrical properties, which are very poor for common building materials. Therefore, various electrically conductive admixtures are used to enhance their electrical properties. Geopolymers based on waste or byproduct precursors are promising materials that can gain new functional properties by adding a reasonable amount of electrically conductive admixtures. The main aim of this paper lies in the design of multifunctional geopolymers with self-heating abilities. Designed geopolymer mortars based on blast-furnace slag activated by water glass and 6 dosages of carbon black (CB) admixture up to 2.25 wt. % were studied in terms of basic physical, mechanical, thermal, and electrical properties (DC). The self-heating ability of the designed mortars was experimentally determined at 40 and 100 V loads. The percolation threshold for self-heating was observed at 1.5 wt. % of carbon black with an increasing self-heating performance for higher CB dosages. The highest power of 26 W and the highest temperature increase of about 110 C were observed for geopolymers with 2.25 wt. % of carbon black admixture at 100 V.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

<a href="/en/project/GA19-11516S" target="_blank" >GA19-11516S: Geopolymers for smart applications in civil engineering</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

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

Name of the periodical

Energies

ISSN

1996-1073

e-ISSN

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Volume of the periodical

12

Issue of the periodical within the volume

21

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85075573079