Electrical and Self-Sensing Properties of Alkali-Activated Slag Composite with Graphite Filler

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00331370" target="_blank" >RIV/68407700:21110/19:00331370 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26110/19:PU132162
Result on the web
<a href="http://hdl.handle.net/10467/86055" target="_blank" >http://hdl.handle.net/10467/86055</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ma12101616" target="_blank" >10.3390/ma12101616</a>

Result language
angličtina
Original language name
Electrical and Self-Sensing Properties of Alkali-Activated Slag Composite with Graphite Filler
Original language description
The electrical properties of concrete are gaining their importance for the application in building construction. In this study, graphite powder was added to alkali-activated slag mortar as an electrically conductive filler in order to enhance the mortar’s conductive properties. The amount of graphite ranged from 1% to 30% of the slag mass. The effect of the graphite powder on the resistivity, capacitance, mechanical properties, and microstructure of the composite was investigated. Selected mixtures were then used for the testing of self-sensing properties under compressive loading. The results show that the addition of an amount of graphite equal to up to 10% of the slag mass improved the electrical properties of the alkali-activated slag. Higher amounts of filler did not provide any further improvement in electrical properties at lower AC frequencies but caused a strong deterioration in mechanical properties. The best self-sensing properties were achieved for the mixture with 10 wt% of graphite, but only at low compressive stresses of up to 6 MPa.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering

Project
Result was created during the realization of more than one project. More information in the Projects tab.
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

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