Evaluation of self-sensing and energy harvesting potential of multifunctional alkali-activated metashale mortar

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00367529" target="_blank" >RIV/68407700:21110/23:00367529 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.14455/ISEC.2023.10(1).AAC-04" target="_blank" >https://doi.org/10.14455/ISEC.2023.10(1).AAC-04</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14455/ISEC.2023.10(1).AAC-04" target="_blank" >10.14455/ISEC.2023.10(1).AAC-04</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of self-sensing and energy harvesting potential of multifunctional alkali-activated metashale mortar

Popis výsledku v původním jazyce

Sustainable construction materials with new functional properties can be beneficially used in special civil engineering applications. Since geopolymers are of lower negative environmental impact in comparison with cementitious materials and possess favorable material properties (mechanical performance, durability, chemical and high-temperature resistance), they are good candidates for optimization of electrical properties by doping with electrically conductive admixtures, which is the presumption of resistance heating or thermoelectric energy harvesting function. The research presented in the paper dealt with the design of geopolymer mortar based on (potassium hydroxide/silicate)-activated metashale doped by a mix of carbon fibers and graphite powder. Material characterization revealed promising properties for the self-heating function (l = 1.06 W.m-1·K-1, e = 8.7 x 10-1 S·m-1) which was confirmed by AC self-heating experiment (30 V RMS). Thermoelectric experiment revealed non-linear thermoelectric voltage dependence on dT, and maximum of the P-Type Seebeck coefficient (heating: 343.56 µV·K-1, cooling: 312.50 µV·K-1) corresponding to ZT values of 4.20 x 10-5 and 2.75 x 10-5 in dT range of 140 K.

Název v anglickém jazyce

Evaluation of self-sensing and energy harvesting potential of multifunctional alkali-activated metashale mortar

Popis výsledku anglicky

Sustainable construction materials with new functional properties can be beneficially used in special civil engineering applications. Since geopolymers are of lower negative environmental impact in comparison with cementitious materials and possess favorable material properties (mechanical performance, durability, chemical and high-temperature resistance), they are good candidates for optimization of electrical properties by doping with electrically conductive admixtures, which is the presumption of resistance heating or thermoelectric energy harvesting function. The research presented in the paper dealt with the design of geopolymer mortar based on (potassium hydroxide/silicate)-activated metashale doped by a mix of carbon fibers and graphite powder. Material characterization revealed promising properties for the self-heating function (l = 1.06 W.m-1·K-1, e = 8.7 x 10-1 S·m-1) which was confirmed by AC self-heating experiment (30 V RMS). Thermoelectric experiment revealed non-linear thermoelectric voltage dependence on dT, and maximum of the P-Type Seebeck coefficient (heating: 343.56 µV·K-1, cooling: 312.50 µV·K-1) corresponding to ZT values of 4.20 x 10-5 and 2.75 x 10-5 in dT range of 140 K.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GC22-00987J" target="_blank" >GC22-00987J: Multifunkční necementové kompozity se sníženým dopadem na životní prostředí pro speciální stavební aplikace</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

Proceedings of International Structural Engineering and Construction

ISBN

—

ISSN

2644-108X

e-ISSN

2644-108X

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

ISEC Press

Místo vydání

Fargo

Místo konání akce

Chicago

Datum konání akce

14. 8. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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