Testing methods of various materials for development of cement composites with low electrical resistance

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F21%3APU143484" target="_blank" >RIV/00216305:26110/21:PU143484 - isvavai.cz</a>

Result on the web

<a href="https://iopscience.iop.org/article/10.1088/1757-899X/1039/1/012021" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/1039/1/012021</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/1039/1/012021" target="_blank" >10.1088/1757-899X/1039/1/012021</a>

Result language

angličtina

Original language name

Testing methods of various materials for development of cement composites with low electrical resistance

Original language description

Our entire planet is filled by communication routes, and as a result of the evolving information technologies, their numbers will continue to grow in the future. Demand for their reliability and hence the importance of protecting related technologies from all kinds of interference is increasing as well. Therefore, it is necessary to develop new materials in order to protect these routes against negative influences of the environment such as the atmospheric discharge. The main aim of the research is to develop and verify the properties of the cement composite that can be applied in systems of protection of building structures against lightning strike and overvoltage. The first step in the development of this material was the selection of suitable feedstocks, which by their presence in the newly developed material will increase its electrical conductivity respectively reduce its electrical impedance. For this purpose, a spectrum of potential raw materials with a high content of metals and organic carbon was chosen. By means of a suitably selected set of laboratory methods which consisted of determination of specific surface, impedance and total organic carbon content (TOC), materials with the most suitable properties were selected and their parameters determined also in a cement matrix. In order to realize this goal specimens with each conducive material as filler were created with incorporated copper electrodes. Impedance has been significantly reduced compared to the reference samples. The lowest values in the tens of ohms were obtained from samples containing carbon grit 0.5–4.0. This fact proves that the tested fillers can be used in order to produce electrically conductive cement composites.

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

20101 - Civil engineering

Project

<a href="/en/project/FV30239" target="_blank" >FV30239: Advanced Earthing Enhancing Materials in the Lightning and Overvoltage Protection System</a><br>

Continuities

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

Publication year

2021

Confidentiality

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

Article name in the collection

Materials Science and Engineering

ISBN

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ISSN

1757-899X

e-ISSN

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Number of pages

6

Pages from-to

1-6

Publisher name

IOP Publishing

Place of publication

Bristol

Event location

Telč

Event date

Jun 2, 2020

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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