INVESTIGATION OF ELECTRIC AND THERMAL PROPERTIES OF ALKALI-ACTIVATED ALUMINOSILICATES WITH A CNT ADMIXTURE
The paper is focused on measurements of electric and thermal properties of alkali-activated aluminosilicates (AAAs) with a carbon nanotube (CNT) admixture. Such composites, fabricated from blast-furnace slag, quartz sand, water glass as an alkali activator, a small amount of electrically conductive...
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| Format: | Article |
| Language: | English |
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University of Chemistry and Technology, Prague
2020-04-01
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| Series: | Ceramics-Silikáty |
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http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1313
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| _version_ | 1828391977772646400 |
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| author | Oldrich Zmeskal Lucie Trhlikova Pospisil Jan Fiala Lukas Florian Pavel |
| author_facet | Oldrich Zmeskal Lucie Trhlikova Pospisil Jan Fiala Lukas Florian Pavel |
| author_sort | Oldrich Zmeskal |
| collection | DOAJ |
| description | The paper is focused on measurements of electric and thermal properties of alkali-activated aluminosilicates (AAAs) with a carbon nanotube (CNT) admixture. Such composites, fabricated from blast-furnace slag, quartz sand, water glass as an alkali activator, a small amount of electrically conductive CNT admixture and water exhibit better electric and thermal properties than the reference material without the CNT. Such an enhancement opens new practical applications, such as designing snow-melting, de-icing or self-sensing systems that do not need any external sensors to detect the current condition of the building's materials. Moreover, the economic aspect is more favourable in the case of AAA than that of Portland cement-based materials. The DC (direct current) electric properties are determined experimentally from the current-voltage (I-V) characteristics, the dielectric properties by means of impedance spectroscopy. Dielectric measurements allow us to determine the contribution of the individual components to the conductivity of the composite. The electric and thermal conductivities in the transverse direction were 16.16 μS/m and 0.907 W.m-1K-1 for 0 % of CNT and 34.46 μS/m and 1.298 W.m-1K-1 for 0.4 % of CNT, respectively |
| first_indexed | 2024-12-10T07:12:04Z |
| format | Article |
| id | doaj.art-4fc8e5e7bf8f45c5b2aa1b515041a3a2 |
| institution | Directory Open Access Journal |
| issn | 0862-5468 1804-5847 |
| language | English |
| last_indexed | 2024-12-10T07:12:04Z |
| publishDate | 2020-04-01 |
| publisher | University of Chemistry and Technology, Prague |
| record_format | Article |
| series | Ceramics-Silikáty |
| spelling | doaj.art-4fc8e5e7bf8f45c5b2aa1b515041a3a22022-12-22T01:58:01ZengUniversity of Chemistry and Technology, PragueCeramics-Silikáty0862-54681804-58472020-04-0164218018910.13168/cs.2020.000710.13168/cs.2020.0007.20200520054140INVESTIGATION OF ELECTRIC AND THERMAL PROPERTIES OF ALKALI-ACTIVATED ALUMINOSILICATES WITH A CNT ADMIXTUREOldrich Zmeskal0Lucie Trhlikova1Pospisil Jan2Fiala LukasFlorian Pavel3 Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic The paper is focused on measurements of electric and thermal properties of alkali-activated aluminosilicates (AAAs) with a carbon nanotube (CNT) admixture. Such composites, fabricated from blast-furnace slag, quartz sand, water glass as an alkali activator, a small amount of electrically conductive CNT admixture and water exhibit better electric and thermal properties than the reference material without the CNT. Such an enhancement opens new practical applications, such as designing snow-melting, de-icing or self-sensing systems that do not need any external sensors to detect the current condition of the building's materials. Moreover, the economic aspect is more favourable in the case of AAA than that of Portland cement-based materials. The DC (direct current) electric properties are determined experimentally from the current-voltage (I-V) characteristics, the dielectric properties by means of impedance spectroscopy. Dielectric measurements allow us to determine the contribution of the individual components to the conductivity of the composite. The electric and thermal conductivities in the transverse direction were 16.16 μS/m and 0.907 W.m-1K-1 for 0 % of CNT and 34.46 μS/m and 1.298 W.m-1K-1 for 0.4 % of CNT, respectively http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1313 alkali-activated aluminosilicates carbon nanotubes electric and dielectric properties thermal properties |
| spellingShingle | Oldrich Zmeskal Lucie Trhlikova Pospisil Jan Fiala Lukas Florian Pavel INVESTIGATION OF ELECTRIC AND THERMAL PROPERTIES OF ALKALI-ACTIVATED ALUMINOSILICATES WITH A CNT ADMIXTURE Ceramics-Silikáty alkali-activated aluminosilicates carbon nanotubes electric and dielectric properties thermal properties |
| title | INVESTIGATION OF ELECTRIC AND THERMAL PROPERTIES OF ALKALI-ACTIVATED ALUMINOSILICATES WITH A CNT ADMIXTURE |
| title_full | INVESTIGATION OF ELECTRIC AND THERMAL PROPERTIES OF ALKALI-ACTIVATED ALUMINOSILICATES WITH A CNT ADMIXTURE |
| title_fullStr | INVESTIGATION OF ELECTRIC AND THERMAL PROPERTIES OF ALKALI-ACTIVATED ALUMINOSILICATES WITH A CNT ADMIXTURE |
| title_full_unstemmed | INVESTIGATION OF ELECTRIC AND THERMAL PROPERTIES OF ALKALI-ACTIVATED ALUMINOSILICATES WITH A CNT ADMIXTURE |
| title_short | INVESTIGATION OF ELECTRIC AND THERMAL PROPERTIES OF ALKALI-ACTIVATED ALUMINOSILICATES WITH A CNT ADMIXTURE |
| title_sort | investigation of electric and thermal properties of alkali activated aluminosilicates with a cnt admixture |
| topic | alkali-activated aluminosilicates carbon nanotubes electric and dielectric properties thermal properties |
| url |
http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1313
|
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