Sensing properties of slag-based geopolymer composite with carbon fi-bers under compressive loading

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU134638" target="_blank" >RIV/00216305:26110/19:PU134638 - isvavai.cz</a>

Výsledek na webu

<a href="http://webu3.vgtu.lt/uni/stf/mbmst/MBMST2019proceedings.pdf" target="_blank" >http://webu3.vgtu.lt/uni/stf/mbmst/MBMST2019proceedings.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3846/mbmst.2019.025" target="_blank" >10.3846/mbmst.2019.025</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sensing properties of slag-based geopolymer composite with carbon fi-bers under compressive loading

Popis výsledku v původním jazyce

Application of functional materials has become a new trend in the construction industry. This paper aims to study the electrical and self-sensing properties of slag-based geopolymer composite. In order to improve the electrical conductivity of the basic geopolymer mortar, carbon fibers in the amount of 0.5, 1 and 2% were added. The influence of fiber addition on the electrical properties was determined by impedance spectroscopy and microstructure was analyzed by means of mercury intrusion porosimetry and SEM. The sensing properties were tested under repeated compressive loading in the elastic range and finally under loading till failure. The electrical resistance decreased with the addition of carbon fibers but it caused a deterioration of the mechanical properties. The addition of fibers does not generally improve the sensing per-formance of the geopolymer composite, but the mixture with 2% of fibers appeared to be unsuitable for this purpose due to the low signal-to-noise ratio.

Název v anglickém jazyce

Sensing properties of slag-based geopolymer composite with carbon fi-bers under compressive loading

Popis výsledku anglicky

Application of functional materials has become a new trend in the construction industry. This paper aims to study the electrical and self-sensing properties of slag-based geopolymer composite. In order to improve the electrical conductivity of the basic geopolymer mortar, carbon fibers in the amount of 0.5, 1 and 2% were added. The influence of fiber addition on the electrical properties was determined by impedance spectroscopy and microstructure was analyzed by means of mercury intrusion porosimetry and SEM. The sensing properties were tested under repeated compressive loading in the elastic range and finally under loading till failure. The electrical resistance decreased with the addition of carbon fibers but it caused a deterioration of the mechanical properties. The addition of fibers does not generally improve the sensing per-formance of the geopolymer composite, but the mixture with 2% of fibers appeared to be unsuitable for this purpose due to the low signal-to-noise ratio.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

MODERN BUILDING MATERIALS, STRUCTURES AND TECHNIQUES 2019

ISBN

978-609-476-197-3

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

146-151

Název nakladatele

VGTU Press

Místo vydání

Vilnius, Litva

Místo konání akce

Vilnius

Datum konání akce

16. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000661870600021