Basic physical and electrical properties of geopolymers with graphite powder

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00342883" target="_blank" >RIV/68407700:21110/20:00342883 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1063/5.0026385" target="_blank" >https://doi.org/10.1063/5.0026385</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0026385" target="_blank" >10.1063/5.0026385</a>

Result language

angličtina

Original language name

Basic physical and electrical properties of geopolymers with graphite powder

Original language description

Construction materials are required to exhibit good mechanical properties, sufficient durability, and resistance to the negative influence of the environment, such as resistance of the moistened material to freeze-thaw cycles, resistance to intake and crystallization of salts or significant changes in temperature. Besides, it exists the requirement for the design of materials with additional properties, so-called multifunctional materials. Optimization of electrical properties of mostly electrically non-conductive construction materials opens up a wide range of their new applicability, such as in self-heating or self-sensing applications. In the case of self-heating, sufficiently high electrical conductivity of the optimized construction material must be achieved. Determination of electrical properties is the first crucial step for the estimation of self-heating ability. This paper is focused on experimental determination of basic physical and electrical properties in DC/AC regime of the composite based on alkali-activated slag with graphite admixture in the amount of 6.25 wt.%. Basic physical properties were determined by gravimetric method and helium pycnometry. DC parameters were identified by measurements of the resistance and calculations of the electrical conductivity. AC parameters were identified by LCR bridge. It was observed that electrical properties of geopoymer enhanced by graphite powder in amount of 6.25 wt.% ensure self-heating ability of such composite which can be classified as multifunctional.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials 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)

Publication year

2020

Confidentiality

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

Article name in the collection

AIP Conference Proceedings 2275

ISBN

978-0-7354-4005-0

ISSN

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e-ISSN

1551-7616

Number of pages

6

Pages from-to

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Publisher name

AIP Publishing, APL, the American Institute of Physics

Place of publication

Melville, NY

Event location

Eger

Event date

Sep 2, 2020

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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