Electrical resistance and self-sensing properties of pressure-sensitive materials with graphite filler in Kuralon fiber concrete

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00359975" target="_blank" >RIV/68407700:21110/22:00359975 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.2478/msp-2022-0023" target="_blank" >https://doi.org/10.2478/msp-2022-0023</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/msp-2022-0023" target="_blank" >10.2478/msp-2022-0023</a>

Result language

angličtina

Original language name

Electrical resistance and self-sensing properties of pressure-sensitive materials with graphite filler in Kuralon fiber concrete

Original language description

This study aimed to investigate conductivity behavior of concrete containing graphite and its sensitivity to the effects of pressure. Graphite powder was added to concrete to replace partial cement (4 wt.%, 8 wt.%, 12 wt.%, and 16 wt.%) as conductive fillers with a water-to-cementitious ratio of 0.45. Specimens with 0.5 vol.% Kuralon fibers were treated to enhance the performance of self-sensing properties to investigate the influence of graphite and fiber contents on electrical resistivities. The relationship between the axial load and changes in resistivity was determined using cyclic loading tests, indicating the existence and development of internal cracking in concrete. The results indicated that the compressive strength presented a linear decline proportional to the addition of graphite. Specimens with 8% graphite reached the lower bound of self-sensing properties, and with an increase in the amount of graphite, resistivity gradually decreased. In the cyclic loading tests, specimens containing >8% graphite were able to better reflect the relationship between loading and resistivity. Kuralon fibers in concrete had further improvement in resistance and self-sensing properties. In inclusion, the mixture with 8% graphite provided the best self-sensing properties to warn for preventing the effects of cracking, as well as achieved better mechanical properties.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/GC22-00987J" target="_blank" >GC22-00987J: Multifunctional cementless composites with low environmental impact for special construction applications</a><br>

Continuities

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

Publication year

2022

Confidentiality

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

Name of the periodical

Materials Science-Poland

ISSN

2083-134X

e-ISSN

2083-134X

Volume of the periodical

40

Issue of the periodical within the volume

2

Country of publishing house

PL - POLAND

Number of pages

17

Pages from-to

223-239

UT code for WoS article

000859744300003

EID of the result in the Scopus database

2-s2.0-85139226946