Experimental analysis of electrical properties of composite materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00311725" target="_blank" >RIV/68407700:21110/17:00311725 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26110/17:PU122912

Result on the web

<a href="http://dx.doi.org/10.1063/1.4975431" target="_blank" >http://dx.doi.org/10.1063/1.4975431</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4975431" target="_blank" >10.1063/1.4975431</a>

Result language

angličtina

Original language name

Experimental analysis of electrical properties of composite materials

Original language description

Dry cement-based composites are electrically non-conductive materials that behave in electric field like dielectrics. However, a relatively low amount of electrically conductive admixture significantly increases the electrical conductivity which extends applicability of such materials in practice. Therefore, they can be used as self-monitoring sensors controlling development of cracks; as sensors monitoring moisture content or when treated by an external electrical voltage as heat sources used for deicing of material’s surface layer. Alkali-activated aluminosilicates (AAA), as competing materials to cement-based materials, are intensively investigated in the present due to their superior durability and environmental impact. Whereas the electrical properties of AAA are similar to those cement-based, they can be enhanced in the same way. In both cases, it is crucial to find a reasonable amount of electrically conductive phase to design composites with a sufficient electrical conductivity at an affordable price. In this paper, electrical properties of composites based on AAA binder and electrically conductive admixture represented by carbon nanotubes (CNT) are investigated. Measurements of electrical properties are carried out by means of 2-probes DC technique on nine types of samples; reference sample without the conductive phase and samples with CNT admixture in amount of 0.1 % - 2.5 % by vol. A significant increase of the electrical conductivity starts from the amount of 0.5 % CNT admixture and in case of 2.5 % CNT is about three orders of magnitude higher compared to the reference sample.

Czech name

—

Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/GA16-00567S" target="_blank" >GA16-00567S: Alkali-activated aluminosilicate composites with enhanced electrical conductivity</a><br>

Continuities

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

Publication year

2017

Confidentiality

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

Article name in the collection

PROCEEDINGS OF THE 6TH INTERNATIONAL ADVANCES IN APPLIED PHYSICS AND MATERIALS SCIENCE CONGRESS & EXHIBITION: (APMAS 2016)

ISBN

978-0-7354-1477-8

ISSN

—

e-ISSN

—

Number of pages

6

Pages from-to

—

Publisher name

AIP Conference Proceedings

Place of publication

New York

Event location

Istanbul

Event date

Jun 1, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000405202000016