Electromagnetic interference shielding with Portland cement paste containing carbon materials and processed fly ash
The study described in this article explored the effect of adding different types of carbon materials (graphite powder and three types of carbon fibre), fly ash (with 5.6%, 15.9% and 24.3% Fe2O3), and a mix of both on electromagnetic interference (EMI) shielding in Portland cement pastes. The parame...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Consejo Superior de Investigaciones Científicas
2010-12-01
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| Series: | Materiales de Construccion |
| Subjects: | |
| Online Access: | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/605 |
| _version_ | 1818613609707601920 |
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| author | E. Zornoza G. Catalá F. Jiménez L. Gª Andión P. Garcés |
| author_facet | E. Zornoza G. Catalá F. Jiménez L. Gª Andión P. Garcés |
| author_sort | E. Zornoza |
| collection | DOAJ |
| description | The study described in this article explored the effect of adding different types of carbon materials (graphite powder and three types of carbon fibre), fly ash (with 5.6%, 15.9% and 24.3% Fe2O3), and a mix of both on electromagnetic interference (EMI) shielding in Portland cement pastes. The parameters studied included the type and aspect ratio of the carbonic material, composite material thickness, the frequency of the incident electromagnetic radiation and the percentage of the magnetic fraction in the fly ash. The findings showed that the polyacrylonitrile-based carbon fibres, which had the highest aspect ratio, provided more effective shielding than any of the other carbon materials studied. Shielding was more effective in thicker specimens and at higher radiation frequencies. Raising the magnetic fraction of the fly ash, in turn, also enhanced paste shielding performance. Finally, adding both carbon fibre and fly ash to the paste resulted in the most effective EMI shielding as a result of the synergies generated. |
| first_indexed | 2024-12-16T16:04:51Z |
| format | Article |
| id | doaj.art-961baf2b890e4727a63ab356edc67dcb |
| institution | Directory Open Access Journal |
| issn | 0465-2746 1988-3226 |
| language | English |
| last_indexed | 2024-12-16T16:04:51Z |
| publishDate | 2010-12-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Materiales de Construccion |
| spelling | doaj.art-961baf2b890e4727a63ab356edc67dcb2022-12-21T22:25:23ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262010-12-0160300213210.3989/mc.2010.51009586Electromagnetic interference shielding with Portland cement paste containing carbon materials and processed fly ashE. Zornoza0G. Catalá1F. Jiménez2L. Gª Andión3P. Garcés4Universidad de AlicanteUniversidad de AlicanteUniversidad Politécnica de MadridUniversidad de AlicanteUniversidad de AlicanteThe study described in this article explored the effect of adding different types of carbon materials (graphite powder and three types of carbon fibre), fly ash (with 5.6%, 15.9% and 24.3% Fe2O3), and a mix of both on electromagnetic interference (EMI) shielding in Portland cement pastes. The parameters studied included the type and aspect ratio of the carbonic material, composite material thickness, the frequency of the incident electromagnetic radiation and the percentage of the magnetic fraction in the fly ash. The findings showed that the polyacrylonitrile-based carbon fibres, which had the highest aspect ratio, provided more effective shielding than any of the other carbon materials studied. Shielding was more effective in thicker specimens and at higher radiation frequencies. Raising the magnetic fraction of the fly ash, in turn, also enhanced paste shielding performance. Finally, adding both carbon fibre and fly ash to the paste resulted in the most effective EMI shielding as a result of the synergies generated.http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/605emi shieldingcement pasteprocessed fly ashcarbon fibregraphite powder |
| spellingShingle | E. Zornoza G. Catalá F. Jiménez L. Gª Andión P. Garcés Electromagnetic interference shielding with Portland cement paste containing carbon materials and processed fly ash Materiales de Construccion emi shielding cement paste processed fly ash carbon fibre graphite powder |
| title | Electromagnetic interference shielding with Portland cement paste containing carbon materials and processed fly ash |
| title_full | Electromagnetic interference shielding with Portland cement paste containing carbon materials and processed fly ash |
| title_fullStr | Electromagnetic interference shielding with Portland cement paste containing carbon materials and processed fly ash |
| title_full_unstemmed | Electromagnetic interference shielding with Portland cement paste containing carbon materials and processed fly ash |
| title_short | Electromagnetic interference shielding with Portland cement paste containing carbon materials and processed fly ash |
| title_sort | electromagnetic interference shielding with portland cement paste containing carbon materials and processed fly ash |
| topic | emi shielding cement paste processed fly ash carbon fibre graphite powder |
| url | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/605 |
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