Evaluation of synergetic structural and EMP shielding performance of novel conductive concrete
Protection of critical facilities, modern devices, and systems against Electromagnetic Pulse (EMP) became a vital necessity due to modern civilization’s needs. Using conductive concrete for EMP shielding became a common practice because of its low cost compared to other approaches and accessible con...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-11-01
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| Series: | Ain Shams Engineering Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2090447924003903 |
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| author | Mohamed Wagih Ismail M. Kamal Ahmed E. Soltan Mohamed A.E.M. Ali |
| author_facet | Mohamed Wagih Ismail M. Kamal Ahmed E. Soltan Mohamed A.E.M. Ali |
| author_sort | Mohamed Wagih |
| collection | DOAJ |
| description | Protection of critical facilities, modern devices, and systems against Electromagnetic Pulse (EMP) became a vital necessity due to modern civilization’s needs. Using conductive concrete for EMP shielding became a common practice because of its low cost compared to other approaches and accessible construction and maintenance techniques. An innovative conductive concrete mixtures with an EMP shielding capability is pioneered in this study. The mechanical properties, impact resistance, and Shielding Effectiveness (SE) performance of these conductive concrete mixtures which incorporates novel/non-traditional constituents including; magnetite powder, magnetite aggregate, steel fibers, wired steel mesh, and graphite powder were investigated.A shielding effectiveness test was performed using an utterly anechoic room following the MIL-STD-188-125-1 requirements, while the impact resistance of concrete shields was assessed using a drop weight impact test. The results demonstrated that there was evidence that the compressive behavior of such conductive mixtures was increased by up to 21.5% relative to normal concrete due to incorporating fine and coarse magnetite aggregate in concrete shields. Furthermore, the incorporation of steel fibers significantly enhanced the splitting tensile properties by about 101% compared to the fibreless concrete specimens. Also, a superior 1st crack and fracture impact energy was sustained by concrete panels, owing to utilizing steel wired mesh and fibers in concrete shields, by about four to six times that of its non-reinforced counterparts. Also, the utilization of the indicated conductive constituents in the fabrication of concrete shields led to a significant improvement in SE performance by up to 196% compared to that of normal concrete constituents. This research underscores the potential to engineer novel conductive concrete shields with superior impact resistance and EMP shielding for the protection of critical infrastructure. |
| format | Article |
| id | doaj-art-a06d9b113da641ac9b6b8743e98bd3e6 |
| institution | Kabale University |
| issn | 2090-4479 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ain Shams Engineering Journal |
| spelling | doaj-art-a06d9b113da641ac9b6b8743e98bd3e62024-11-18T04:32:55ZengElsevierAin Shams Engineering Journal2090-44792024-11-011511103015Evaluation of synergetic structural and EMP shielding performance of novel conductive concreteMohamed Wagih0Ismail M. Kamal1Ahmed E. Soltan2Mohamed A.E.M. Ali3Department of Civil Engineering, Military Technical College, EgyptCommandant of the Military Technical College, EgyptDepartment of Civil Engineering, Military Technical College, EgyptDepartment of Civil Engineering, Military Technical College, Egypt; Corresponding author.Protection of critical facilities, modern devices, and systems against Electromagnetic Pulse (EMP) became a vital necessity due to modern civilization’s needs. Using conductive concrete for EMP shielding became a common practice because of its low cost compared to other approaches and accessible construction and maintenance techniques. An innovative conductive concrete mixtures with an EMP shielding capability is pioneered in this study. The mechanical properties, impact resistance, and Shielding Effectiveness (SE) performance of these conductive concrete mixtures which incorporates novel/non-traditional constituents including; magnetite powder, magnetite aggregate, steel fibers, wired steel mesh, and graphite powder were investigated.A shielding effectiveness test was performed using an utterly anechoic room following the MIL-STD-188-125-1 requirements, while the impact resistance of concrete shields was assessed using a drop weight impact test. The results demonstrated that there was evidence that the compressive behavior of such conductive mixtures was increased by up to 21.5% relative to normal concrete due to incorporating fine and coarse magnetite aggregate in concrete shields. Furthermore, the incorporation of steel fibers significantly enhanced the splitting tensile properties by about 101% compared to the fibreless concrete specimens. Also, a superior 1st crack and fracture impact energy was sustained by concrete panels, owing to utilizing steel wired mesh and fibers in concrete shields, by about four to six times that of its non-reinforced counterparts. Also, the utilization of the indicated conductive constituents in the fabrication of concrete shields led to a significant improvement in SE performance by up to 196% compared to that of normal concrete constituents. This research underscores the potential to engineer novel conductive concrete shields with superior impact resistance and EMP shielding for the protection of critical infrastructure.http://www.sciencedirect.com/science/article/pii/S2090447924003903Electromagnetic pulseConcreteShielding effectivenessMagnetiteSteel fibers |
| spellingShingle | Mohamed Wagih Ismail M. Kamal Ahmed E. Soltan Mohamed A.E.M. Ali Evaluation of synergetic structural and EMP shielding performance of novel conductive concrete Ain Shams Engineering Journal Electromagnetic pulse Concrete Shielding effectiveness Magnetite Steel fibers |
| title | Evaluation of synergetic structural and EMP shielding performance of novel conductive concrete |
| title_full | Evaluation of synergetic structural and EMP shielding performance of novel conductive concrete |
| title_fullStr | Evaluation of synergetic structural and EMP shielding performance of novel conductive concrete |
| title_full_unstemmed | Evaluation of synergetic structural and EMP shielding performance of novel conductive concrete |
| title_short | Evaluation of synergetic structural and EMP shielding performance of novel conductive concrete |
| title_sort | evaluation of synergetic structural and emp shielding performance of novel conductive concrete |
| topic | Electromagnetic pulse Concrete Shielding effectiveness Magnetite Steel fibers |
| url | http://www.sciencedirect.com/science/article/pii/S2090447924003903 |
| work_keys_str_mv | AT mohamedwagih evaluationofsynergeticstructuralandempshieldingperformanceofnovelconductiveconcrete AT ismailmkamal evaluationofsynergeticstructuralandempshieldingperformanceofnovelconductiveconcrete AT ahmedesoltan evaluationofsynergeticstructuralandempshieldingperformanceofnovelconductiveconcrete AT mohamedaemali evaluationofsynergeticstructuralandempshieldingperformanceofnovelconductiveconcrete |