AC Electrical Properties of Geopolymers with Carbon Black Admixture

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00331028" target="_blank" >RIV/68407700:21110/19:00331028 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1757-899X/549/1/012044" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/549/1/012044</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1757-899X/549/1/012044" target="_blank" >10.1088/1757-899X/549/1/012044</a>

Result language
angličtina
Original language name
AC Electrical Properties of Geopolymers with Carbon Black Admixture
Original language description
Geopolymers as competitors to the cement-based construction materials are intensively studied in the present. Their competitiveness mainly arises from their high strength, favourable development of hydration heat at early age, good chemical resistance and thermal stability. Further qualitative improvement of functional properties can be achieved by adding electrically conductive admixtures. In an appropriate amount (called percolation threshold), mechanical properties remain reasonable and electrical properties become sufficient to ensure evolution of heat by acting of an external power source (self-heating), to detect material damage (self-sensing) or to harvest thermoelectric energy (energy harvesting). In this paper three geopolymers with different dosages of carbon black (CB) admixture (0 wt. %, 4 wt. %, 10 wt. %) were studied by means of LCR bridge AC measurements. It was observed significant difference in electrical behavior of the studied geopolymers. 0 wt. % geopolymer exhibited highly capacitive character, 4 wt. % geopolymer was slightly shifted to resistive behavior and 10 wt. % geopolymer behaved like resistor even to high frequencies with reasonable resistance which indicates its possible self-heating ability.
Czech name
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Czech description
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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
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
CONSTRUMAT 2019 - XXV International Conference and Meeting of Departments
ISBN
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ISSN
1757-8981
e-ISSN
1757-8981
Number of pages
6
Pages from-to
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Publisher name
IOP Publishing
Place of publication
London
Event location
Zuberec
Event date
May 29, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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