ARTICLE
Conductive mechanisms and electromagnetic shielding performance of steel fiber-carbon black cement mortar
This study systematically investigates the effects of varying steel fiber contents on both mechanical and electromagnetic shielding properties of Carbon Black cement mortar. Comprehensive evaluations were conducted, including flexural strength and compressive strength measurements, electrical conductivity tests, and electromagnetic shielding performance simulations across the 1–18 GHz frequency range. The experimental results demonstrate that steel fiber incorporation significantly enhances flexural strength (maximum 10.6 MPa, 22.3% improvement), compressive strength (peak 56.1 MPa, 32.3% increase), and electrical conductivity (optimal 37.8 mS/m, 517.64% enhancement). However, due to the random orientation and distribution characteristics of steel fibers, no consistent correlation between fiber content and conductivity was established. Regarding electromagnetic shielding performance, a progressive improvement was observed with increasing steel fiber content. The composite exhibited an average shielding effectiveness of 14.93 dB at the optimal fiber dosage of 200 kg/m3, while achieving a maximum total shielding effectiveness of 27.25 dB (814% enhancement) at 18 GHz.
REFERENCES
1. Wanasinghe D, Aslani F, Ma G, Habibi D. Review of polymer composites with diverse nanofillers for electromagnetic interference shielding. Nanomaterials. 2020;10(3):541. doi:10.3390/nano10030541; 32192158
2. Song P, Liu B, Qiu H, Shi X, Cao D, Gu J. MXenes for polymer matrix electromagnetic interference shielding composites: a review. Compos Commun. 2021;24:100653. doi:10.1016/j.coco.2021.100653.
3. Langrock A, Kareem H, Auletta JT. Poly(vinylidene fluoride-hexafluoropropylene) composites with carbon based nanofillers for electromagnetic interference shielding. Polym Adv Technol. 2024;35(11):e6623. doi:10.1002/pat.6623.
4. Li Q, Zhang Z, Qi L, Liao Q, Kang Z, Zhang Y. Toward the application of high frequency electromagnetic wave absorption by carbon nanostructures. Adv Sci. 2019;6(8):1801057. doi:10.1002/advs.201801057; 31016105
5. Kour H, Jha RK. Electromagnetic radiation reduction in 5G networks and beyond using thermal radiation mode. IEEE Trans Veh Technol. 2020;69(10):11841–56. doi:10.1109/tvt.2020.3020004; 25079929
6. Ramachandran T, Faruque MRI, Siddiky AM, Islam MT. Reduction of 5G cellular network radiation in wireless mobile phone using an asymmetric square shaped passive metamaterial design. Sci Rep. 2021;11(1):2619. doi:10.1038/s41598-021-82105-7; 33514772
7. Li B, Qiao J, Liu Y, Tian H, Liu W, Wu Q, et al. Research on electromagnetic wave absorption based on electrospinning technology. Chin J Chem. 2024;42(7):777–89. doi:10.1002/cjoc.202300577.
8. Ma M, Zheng Q, Zhang X, Li L, Cao M. VSe2/CNTs nanocomposites toward superior electromagnetic wave absorption performance. Carbon. 2023;212(1):118159. doi:10.1016/j.carbon.2023.118159.
9. Xia Y, Gao W, Gao C. A review on graphene-based electromagnetic functional materials: electromagnetic wave shielding and absorption. Adv Funct Mater. 2022;32(42):2204591. doi:10.1002/adfm.202204591.
10. Ma J, Luo Z, Tan S, He J, Guan X, Xu T, et al. Achieving the low emissivity of graphene oxide based film for micron-level electromagnetic waves stealth application. Carbon. 2024;218:118771. doi:10.1016/j.carbon.2023.118771.
11. Gao L, Li G, Zhang X. Electromagnetic wave absorption characteristics of silicon carbide modified concrete applied to protective engineering. Case Stud Constr Mater. 2024;20:e03362. doi:10.1016/j.cscm.2024.e03362.
12. Li B, Ji Z, Xie S, Wang J, Zhou J, Zhu L. Electromagnetic wave absorption properties of carbon black/cement-based composites filled with porous glass pellets. J Mater Sci Mater Electron. 2019;30(13):12416–25. doi:10.1007/s10854-019-01600-w.
13. Khushnood RA, Ahmad S, Restuccia L, Spoto C, Jagdale P, Tulliani JM, et al. Carbonized nano/microparticles for enhanced mechanical properties and electromagnetic interference shielding of cementitious materials. Front Struct Civ Eng. 2016;10(2):209–13. doi:10.1007/s11709-016-0330-5.
14. Dai Y, Wu J, Wang D, Li R, Lu C, Xu Z. Electromagnetic wave-absorbing properties of steel slag. J Materi Eng Perform. 2019;28(1):535–42. doi:10.1007/s11665-018-3831-7.
15. Yuan TF, Choi JS, Kim SK, Yoon YS. Assessment of steel slag and steel fiber to control electromagnetic shielding in high-strength concrete. KSCE J Civ Eng. 2021;25(3):920–30. doi:10.1007/s12205-021-0629-1.
16. Su Y, Wang X, Li Y, Pan Z, Liu Z. Analysis of the conductivity property of live working shielding clothing. J Ind Text. 2018;48(3):643–59. doi:10.1177/1528083717732071.
17. Li S, Guan C, Li H, Wang H, Liang L. Size-dependent fracture behavior of steel fiber reinforced cement mortar modified by polymer. J Build Eng. 2024;89(21):109297. doi:10.1016/j.jobe.2024.109297.
18. Wu H, Shen A, Cai Y, Ma Q, Ren G, Deng S, et al. Interfacial bond properties and pullout behaviors of steel fibers embedded in ultra-high-performance concrete: a review. Mater Today Commun. 2023;35(1):106081. doi:10.1016/j.mtcomm.2023.106081.
19. Yang K, Tang Z, Cheng Z, Zhao H, Feng R, Long G. Mechanical properties of ultra-high strength cement-based materials (UHSC) incorporating metal powders and steel fibers. Constr Build Mater. 2022;318(7):125926. doi:10.1016/j.conbuildmat.2021.125926.
20. Ali Saleh M, Su Z, Zhang J. Novel sustainable steel fiber reinforced preplaced aggregate concrete incorporating Portland limestone cement. Sci Rep. 2024;14(1):10937. doi:10.1038/s41598-024-60391-1; 38740812
21. Zia A, Pu Z, Holly I, Umar T, Tariq MAUR, Sufian M. A comprehensive review of incorporating steel fibers of waste tires in cement composites and its applications. Materials. 2022;15(21):7420. doi:10.3390/ma15217420; 36363014
22. Mu R, Li H, Qing L, Lin J, Zhao Q. Aligning steel fibers in cement mortar using electro-magnetic field. Constr Build Mater. 2017;131(2):309–16. doi:10.1016/j.conbuildmat.2016.11.081.
23. Belli A, Mobili A, Bellezze T, Tittarelli F. Commercial and recycled carbon/steel fibers for fiber-reinforced cement mortars with high electrical conductivity. Cem Concr Compos. 2020;109(29):103569. doi:10.1016/j.cemconcomp.2020.103569.
24. Fiala L, Toman J, Vodička J, Ráček V. Experimental study on electrical properties of steel-fibre reinforced concrete. Procedia Eng. 2016;151:241–8. doi:10.1016/j.proeng.2016.07.362.
25. Berrocal CG, Hornbostel K, Geiker MR, Löfgren I, Lundgren K, Bekas DG. Electrical resistivity measurements in steel fibre reinforced cementitious materials. Cem Concr Compos. 2018;89:216–29. doi:10.1016/j.cemconcomp.2018.03.015.
26. Li H, Chen H, Wei M, Wang R, Lei N, Wang Q. Design and preparation of double-layer iron ore tailings cement-based electromagnetic wave absorbing materials containing carbon black and steel fiber. Constr Build Mater. 2023;364(7):129972. doi:10.1016/j.conbuildmat.2022.129972.
27. Lee N, Park G, Pae J, Moon J, Kim S. Relationship between three-dimensional steel fiber statistics and electromagnetic shielding effectiveness of high-performance, fiber-reinforced cementitious composites. Materials. 2020;13(22):5125. doi:10.3390/ma13225125; 33202917
28. Liu X, Yan X, Su X, Song J. Study on properties of electromagnetic shielding yarns and fabrics. Int J Cloth Sci Technol. 2020;32(5):677–90. doi:10.1108/ijcst-09-2019-0134.
29. Wen S, Chung DDL. Electromagnetic interference shielding reaching 70 dB in steel fiber cement. Cem Concr Res. 2004;34(2):329–32. doi:10.1016/j.cemconres.2003.08.014.
30. Si T, Xie S, Ji Z, Ma C, Wu Z, Wu J, et al. Synergistic effects of carbon black and steel fibers on electromagnetic wave shielding and mechanical properties of graphite/cement composites. J Build Eng. 2022;45(3):103561. doi:10.1016/j.jobe.2021.103561.
31. Ma C, Xie S, Ji Z, Wu Z, Si T, Wu J, et al. Electromagnetic wave absorbing properties of pyramidal engineered cement mortar containing carbon black. J Build Eng. 2024;84(3):108618. doi:10.1016/j.jobe.2024.108618.
32. Wang Y, Ma C, Xie S, Wu Z, Ji Z. An ultra-wideband electromagnetic shielding concrete based on multi-scale conductive fillers. Mater Lett. 2025;399(4):139080. doi:10.1016/j.matlet.2025.139080.
33. Thomoglou AK, Falara MG, Gkountakou FI, Elenas A, Chalioris CE. Smart cementitious sensors with nano-, micro-, and hybrid-modified reinforcement: mechanical and electrical properties. Sensors. 2023;23(5):2405. doi:10.3390/s23052405; 36904609
34. Morales MA, Henry TC, Salamanca-Riba LG. Model of electromagnetic interference shielding effectiveness for a multifunctional composite containing carbon-fiber-reinforced polymer and copper mesh layers. Carbon. 2023;212(3):118179. doi:10.1016/j.carbon.2023.118179.
Cite This Article
APA Style
Wang, Y., Ma, C., Xie, S., Wu, Z., Zhang, J. et al. (2026). Conductive mechanisms and electromagnetic shielding performance of steel fiber-carbon black cement mortar. ZKG International, 79(5), 94–102. https://doi.org/10.32604/zkg.2026.079488
Vancouver Style
Wang Y, Ma C, Xie S, Wu Z, Zhang J, Ji Z. Conductive mechanisms and electromagnetic shielding performance of steel fiber-carbon black cement mortar. ZKG Int.. 2026;79(5):94–102. https://doi.org/10.32604/zkg.2026.079488
IEEE Style
Y. Wang, C. Ma, S. Xie, Z. Wu, J. Zhang, and Z. Ji, “Conductive mechanisms and electromagnetic shielding performance of steel fiber-carbon black cement mortar,” ZKG Int., vol. 79, no. 5, pp. 94–102, 2026. https://doi.org/10.32604/zkg.2026.079488
