Abstract
Conventional concrete is a dielectric whose properties change based on the constituents of the mixture. Consequently, it is not an effective electromagnetic shield since radio frequency (RF) waves can still propagate through it with relatively low attenuation. Recently, conductive concrete, which is a cement-based mix, was developed to achieve high electrical conductivity and high mechanical strength. Petroleum coke with different particle sizes, synthetic graphite, and steel fibers were used to improve the electrical properties of the concrete. In this paper, the effectiveness of conductive concrete as an electromagnetic shield is investigated. Steel fiber configuration and sample thickness were the parameters used in the evaluation. Frequencies between 0.3 to 11 GHz were considered in the investigation. The free space measurement method was used to measure the electromagnetic shielding effectiveness and the results showed that attenuation up to 50 dB could be achieved for the frequency range considered in the investigation.
Issue Section:
Research Papers
References
1.
Giri
, D.V.
andTesche
, F.M.
, “Modeling of Propagation Losses in Common Residential and Commercial Building Walls
,” Interaction Note IN 624
,Pro-Tech
, Alamo, CA
, 2013
.2.
Bantsis
, G.
,Mavridou
, S.
,Sikalidis
, C.
,Betsiou
, M.
,Oikonomou
, N.
, and Yioultsis
, T.
, “Comparison of Low Cost Shielding-Absorbing Cement Paste Building Materials in X-Band Frequency Range Using a Variety of Wastes
,” Ceram. Int.
, Vol.38
, No. 5
, 2012
, pp.3683
–3692
. https://doi.org/10.1016/j.ceramint.2012.01.0103.
Hemming
, L.H.
, Architectural Electromagnetic Shielding Handbook: A Design and Specification Guide
, IEEE Press
,Piscataway, NJ
, 1992
.4.
Gnecco
, L.T.
, The Design of Shielded Enclosures: Cost-Effective Methods to Prevent EMI
,Newnes
, Boston, MA
, 2000
.5.
Tumidajski
, P.J.
, Xie
,P.
, Arnott
,M.
, andBeaudoin
, J.J.
, “Overlay Current in a Conductive Concrete Snow Melting System
,” Cem. Concr. Res.
, Vol. 33
, No. 11
,2003
, pp.1807
–1809
. https://doi.org/10.1016/S0008-8846(03)00198-46.
Xie
, P.
andBeaudoin
, J.J.
, “Electrically Conductive Concrete and its Application in Deicing
,”ACI Special Publication No. 154
,ACI
, Farmington Hills, MI
, 1995
.7.
Yehia
, S.
andTuan
, C.Y.
, “Conductive Concrete Overlay for Bridge Deck Deicing
,” ACI Mater. J.
, Vol. 96
, 1999
, pp.382
–390
.8.
Yehia
, S.
andTuan
, C.Y.
, “Thin Conductive Concrete Overlay for Bridge Deck Deicing and Anti-Icing
,”J. Transp. Res. Board, Mater., Concr. Constr.
, Vol.1698
, 2000
, pp.45
–53
. https://doi.org/10.3141/1698-079.
Pye
, G.B.
,Myers
, R.E.
,Arnott
, M.R.
,Beaudoin
, J.J.
, andTumidajski
, P.J.
, “Conductive Concrete Composition
,” U.S. Patent No. 6,503,318 (2003
).10.
Tuan
, C.Y.
,Yehia
, S.
,Chen
, B.
, andNguyen
, L.
, “Heated Bridge Deck System and Materials and Method for Constructing the Same
,” U.S. Patent No. 6,825,444 (2004
).11.
Yehia
, S.
andTuan
, C.Y.
, “An Implementation of Using a Conductive Concrete Overlay for Bridge Deck Deicing at Roca, NE
,” Proceedings of the 83rd Annual Meeting Transportation Research Board
, Jan 11–15,2004
.12.
Krause
, A.
,Nguyen
, L.
,Tuan
, C.
,Bonsell
, J.
,Chen
, B.
,Blasey
, J.D.
,Zemotel
, J.P.
,McNerney
, H.
, and Metzger
, F.J.
, “Conductive Concrete as an Electromagnetic Shield
,”Proceedings of the Electromagnetic Compatibility (EMC), 2012 IEEE International Symposium
Aug. 6–10,2012
, pp. 85
–87
.13.
Shetty
, M.S.
, Concrete Technology—Theory and Practice
, S. Chand & Company
, Ram Nager, New Delhi, India
, 2005
.14.
Yehia
, S.
,Tuan
, C.Y.
,Ferdon
, D.
, andChen
, B.
, “Conductive Concrete Overlay for Bridge Deck Deicing: Mix Design, Optimization, and Properties
,” ACI Mater. J.
, Vol. 97
, 2000
, pp.172
–181
.15.
Yehia
, S.
andHost
, J.
, “Conductive Concrete for Cathodic Protection of Bridge Decks
,” ACI Mater. J.
, Vol.107
, No. 6
, 2010
, pp.577
–585
.16.
Chung
, D.D. L.
, “Electrical Conduction Behavior of Cement-Matrix Composites
,”J. Mater. Perform.
, Vol. 11
, No.2
, 2002
, pp.194
–204
. https://doi.org/10.1361/10599490277034426817.
Thomassin
, J.M.
,Jérôme
,C.
, Pardoen
,T.
, Bailly
,C.
, Huynen
,I.
, andDetrembleur
,C.
, “Polymer/Carbon Based Composites as Electromagnetic Interference (EMI) Shielding Materials
,” Mater. Sci. Eng.: R: Reports
, Vol. 74
, No. 7
, 2013
, pp.211
–232
. https://doi.org/10.1016/j.mser.2013.06.00118.
Kaynak
, A.
, “Electromagnetic Shielding Effectiveness of Galvanostatically Synthesized Conducting Polypyrrole Films in the 300–2000 MHz Frequency Range
,” Mater. Res. Bull.
, Vol. 31
, No. 7
,1996
, pp.845
–860
. https://doi.org/10.1016/0025-5408(96)00038-419.
Al-Saleh
, M.H.
andSundararaj
, U.
, “Electromagnetic Interference Shielding Mechanisms of CNT/Polymer Composites
,” Carbon
, Vol.47
, No. 7
, 2009
, pp.1738
–1746
. https://doi.org/10.1016/j.carbon.2009.02.03020.
Joo
, J.
andEpstein
, A.J.
, “Electromagnetic Radiation Shielding by Intrinsically Conducting Polymers
,” Appl. Phys. Lett.
, Vol.65
, 1994
, pp.2278
–2280
. https://doi.org/10.1063/1.11271721.
Arjmand
, M.
,Apperley
, T.
,Okoniewski
, M.
, and Sundararaj
, U.
, “Comparative Study of Electromagnetic Interference Shielding Properties of Injection Molded Versus Compression Molded Multi-Walled Carbon Nanotube/Polystyrene Composites
,”Carbon
, Vol. 50
, No.14
, 2012
, pp.5126
–5134
. https://doi.org/10.1016/j.carbon.2012.06.05322.
Tantawy
, H.R.
,Aston
, D.E.
,Smith
, J.R.
, andYoung
, J.L.
, “A Comparison of Electromagnetic Shielding with Polyaniline Nanopowders Produced in Solvent-Limited Conditions
,” ACS Appl. Mater. Interf.
, Vol. 5
, No. 11
,2013
, pp.4648
–4658
. https://doi.org/10.1021/am401695p23.
Saini
, P.
,Choudhary
, V.
,Vijayan
, N.
, and Kotnala
, R.K.
, 2012
, “Improved Electromagnetic Interference Shielding Response of Poly (Aniline)-Coated Fabrics Containing Dielectric and Magnetic Nanoparticles
,” J. Phys. Chem. C
, Vol.116
, No. 24
, pp.13403
–13412
. https://doi.org/10.1021/jp302131w24.
Yuping
, D.
,Shunhua
, L.
, and Hongtao
, G.
, “Investigation of Electrical Conductivity and Electromagnetic Shielding Effectiveness of Polyaniline Composite
,” Sci. Technol. Adv. Mater.
, Vol.6
, No. 5
, 2005
, pp.513
–518
. https://doi.org/10.1016/j.stam.2005.01.00225.
Guan
, H.
,Liu
, S.
,Duan
, Y.
, andCheng
, J.
, “Cement Based Electromagnetic Shielding and Absorbing Building Materials
,” Cem. Concr. Res.
, Vol. 28
, No. 5
, 2006
, pp.468
–474
. https://doi.org/10.1016/j.cemconcomp.2005.12.00426.
Wen
, S.
andChung
, D.D. L.
, “Partial Replacement of Carbon Fiber by Carbon Black in Multifunctional Cement–Matrix Composites
,”Carbon
, Vol. 45
, 2007
, pp.505
–513
. https://doi.org/10.1016/j.carbon.2006.10.02427.
Huang
, Y.
,Li
, N.
,Ma
, Y.
,Du
, F.
,Li
, F.
,He
, X.
,Lin
, X.
,Gao
, H.
, andChen
, Y.
, “The Influence of Single-Walled Carbon Nanotube Structure on the Electromagnetic Interference Shielding Efficiency of its Epoxy Composites
,” Carbon
, Vol.45
, No. 8
, 2007
, pp.1614
–1621
. https://doi.org/10.1016/j.carbon.2007.04.01628.
Li
, N.
,Huang
, Y.
,Du
, F.
,Xiaobo
,Lin
, X.
,G.
H.
,Ma
, Y.
,Li
, F.
,Chen
, Y.
, andEklund
, P.
, “Electromagnetic Interference (EMI) Shielding of Single-Walled Carbon Nanotube Epoxy Composites
,”Nano Lett.
, Vol. 6
, No.6
, 2006
, pp.1141
–1145
. https://doi.org/10.1021/nl060258929.
Das
, N.C.
,Khastgir
, D.
,Chaki
, T.K.
, andChakraborty
,A.
, “Electromagnetic Interference Shielding Effectiveness of Carbon Black and Carbon Fiber Filled EVA and NR Based Composites
,” Compos.A
, Vol.31
, 2000
, pp.1069
–1081
. https://doi.org/10.1016/S1359-835X(00)00064-630.
Bhattacharya
, S.
,Sachdev
, V.K.
,Chatterjee
, R.
, and Tandon
, R.P.
, “Decisive Properties of Graphite-Filled Cement Composites for Device Application
,” Appl. Phys. A
, Vol.92
, No. 2
, 2008
, pp.417
–420
. https://doi.org/10.1007/s00339-008-4544-931.
Mishra
, M.
,Singh
, A.P.
, andDhawan
, S.K.
, “Expanded Graphite–Nanoferrite–Fly Ash Composites for Shielding of Electromagnetic Pollution
,” J. Alloys Componds
, Vol. 557
, 2013
, pp.244
–251
. https://doi.org/10.1016/j.jallcom.2013.01.00432.
Chandra
, A.
,Mathur
, R.B.
, andDhawan
, S.K.
, 2013
,Multiwalled Carbon Nanotube/Cement Composites With Exceptional Electromagnetic Interference Shielding Properties
,”Carbon
, Vol. 56
, 2013
, pp.86
–96
. https://doi.org/10.1016/j.carbon.2012.12.08133.
Dai
, Y.
,Sun
, M.
,Liu
, C.
, andLi
, Z.
, “Electromagnetic Wave Absorbing Characteristics of Carbon Black Cement-Based Composites
,” Cem. Concr. Compos.
, Vol. 32
, No. 7
,2010
, pp.508
–513
. https://doi.org/10.1016/j.cemconcomp.2010.03.00934.
Moglie
, F.
,Micheli
, D.
,Laurenzi
, S.
,Marchetti
, M.
, and Mariani Primiani
,V.
, “Electromagnetic Shielding Performance of Carbon Foams
,” Carbon
, Vol. 50
, No. 5
, 2012
,1972
–1980
. https://doi.org/10.1016/j.carbon.2011.12.05335.
Chung
, D.D. L.
, “Carbon Materials for Structural Self-Sensing, Electromagnetic Shielding and Thermal Interfacing
,” Carbon
, Vol.50
, No. 9
, 2012
, pp.3342
–3353
. https://doi.org/10.1016/j.carbon.2012.01.03136.
Baeza
, F.J.
,Galao
, O.
,Zornoza
, E.
, and Garcés
, P.
,2013
, “Multifunctional Cement Composites Strain and Damage Sensors Applied on Reinforced Concrete (RC) Structural Elements
,” Materials
, Vol.6
, No. 3
, pp.841
–855
. https://doi.org/10.3390/ma603084137.
Galao
, O.
,Baeza
, F.J.
,Zornoza
, E.
, and Garcés
, P.
, “Strain and Damage Sensing Properties on Multifunctional Cement Composites With CNF Admixture
,” Cem. Concr. Compos.
, Vol. 46
, 2014
, pp.90
–98
. https://doi.org/10.1016/j.cemconcomp.2013.11.00938.
Inam
, F.
,Bhat
, B.R.
, Vo
,T.
, and Daoush
,W.M.
, “Structural Health Monitoring Capabilities In Ceramic–Carbon Nanocomposites
,” Ceram. Int.
, Vol.40
, No. 2
, 2014
, pp.3793
–3798
. https://doi.org/10.1016/j.ceramint.2013.09.03939.
Chung
, D.D. L.
, “Electromagnetic Interference Shielding Effectiveness of Carbon Materials
,” Carbon
, Vol.39
, No. 2
, 2001
, pp.279
–285
. https://doi.org/10.1016/S0008-6223(00)00184-640.
Fu
, X.
andChung
, D.D. L.
, “Submicron-Diameter-Carbon-Filament Cement-Matrix Composites
,” Carbon
, Vol.36
, No. 4
, 1998
, pp.459
–462
. https://doi.org/10.1016/S0008-6223(98)90017-341.
He
, Y.
,Lu
, L.
,Jin
, S.
, andHu
, S.
, “Conductive Aggregate Prepared Using Graphite and Clay and its Use in Conductive Mortar
,” Constr. Build. Mater.
, Vol. 53
, 2014
, pp.131
–137
. https://doi.org/10.1016/j.conbuildmat.2013.11.08542.
Chung
, D.D. L.
, “Review Electrical Applications of Carbon Materials
,” J. Mater. Sci.
, Vol. 39
, 2004
, pp.2645
–2661
. https://doi.org/10.1023/B:JMSC.0000021439.18202.ea43.
Shi
, Z.-Q.
andChung
, D.
, “Concrete for Magnetic Shielding
,”Cem. Concr. Res.
, Vol. 25
, No.5
, 1995
, pp.939
–944
. https://doi.org/10.1016/0008-8846(95)00087-S44.
Chung
, D.L. L.
, “Review Electromagnetic Interference Shielding Effectiveness of Carbon Materials
,” Carbon
, Vol.39
, No. 2
, 2001
, pp.279
–285
. https://doi.org/10.1016/S0008-6223(00)00184-645.
Guan
, H.
,Liu
, S.
,Duan
, Y.
, andCheng
, J.
, “Cement Based Electromagnetic Shielding and Absorbing Building Materials
,” Cem. Concr. Res.
, Vol. 28
, No. 5
, 2006
, pp.468
–474
. https://doi.org/10.1016/j.cemconcomp.2005.12.00446.
Wen
, S.
andChung
, D.
, “Electromagnetic Interference Shielding Reaching 70 db in Steel Fiber Cement
,” Cem. Concr. Res.
, Vol. 34
, No. 2
, 2004
, pp.329
–332
. https://doi.org/10.1016/j.cemconres.2003.08.01447.
Fu
, X.
andChung
, D.
, “Radio-Wave-Reflecting Concrete for Lateral Guidance in Automatic Highways
,” Cem. Concr. Res.
, Vol. 28
, No. 6
, 1998
, pp.795
–801
. https://doi.org/10.1016/S0008-8846(98)00057-X48.
Chung
, D.L. L.
, “Electrically Conductive Cement-Based Materials
,” Adv. Cem. Res.
, Vol. 16
, No. 4
,2004
, pp.167
–176
. https://doi.org/10.1680/adcr.2004.16.4.16749.
Cao
, J.
andChung
, D.
, “Use of Fly Ash as an Admixture for Electromagnetic Interference Shielding
,” Cem. Concr. Res.
, Vol. 34
, No. 10
,2004
, pp.1889
–1892
. https://doi.org/10.1016/j.cemconres.2004.02.00350.
Facure
, A.
andSilva
, A.
, “The Use of High-Density Concretes in Radiotherapy Treatment Room Design
,” Appl. Rad. Isotop.
, Vol. 65
, No. 9
,2007
, pp.1023
–1028
. https://doi.org/10.1016/j.apradiso.2007.04.00651.
Feick
, R.
,Hristov
, H.
, and Grote
, W.
, “Attenuation Measurements for Double-Mesh Reinforced Concrete Walls at the 900 MHz Cellular Band
,”Proceedings of the International Wireless Design Conference (WDC)
, London, United Kingdom
, May 2002
, pp.165
–168
.52.
El-Hosiny
, F.
andEl-Faramawy
,N.
, “Shielding of Gamma Radiation by Hydrated Portland Cement Lead Pastes
,” Rad. Meas.
, Vol. 32
, No. 2
,2000
, pp.93
–99
. https://doi.org/10.1016/S1350-4487(99)00050-553.
McCormack
, R.G.
, “Method of Making Concrete Electrically Conductive for Electromagnetic Shielding Purposes
,” U.S. Patent No. 5,346,547 (1994
).54.
Glatkowski
, P.
,Mack
, P.
,Conroy
, J.L.
,Piche
, J.W.
, andWinsor
, P.
, “Electromagnetic Shielding Composite Comprising Nanotubes
,” U.S. Patent No. 6,265,466. (2001
).55.
Xie
, P.
,Gu
, P.
, andBeaudoin
, J.J.
, “Conductive Concrete Cement-Based Compositions
,” U.S. Patent 5,447,564 (1995
).56.
Yehia
, S.
andTuan
, C.Y.
, “Conductive Concrete Overlay for Bridge Deck Deicing
,” ACI Mater. J.
, Vol. 96
, No. 3
,1999
, pp. 382
–390
.57.
Concrete and Construction Engineering
,Electrical Properties of Concrete
, Vol.58
, No. 5,London
, 1963
, p.195.58.
Whittington
, H.
,McCarter
, W.
, and Forde
, M.C.
, “Conduction of Electricity Through Concrete
,” Mag. Concr. Res.
, Vol. 33
, No. 114
,1981
, pp.48
–60
. https://doi.org/10.1680/macr.1981.33.114.4859.
Farrar
, J.J.
, “Electrically Conductive Concrete
,” GEC J. Sci. Technol.
, Vol. 45
, No. 1
,1978
, pp. 45
–48
.60.
Xie
, P.
,Gu
, P.
, andBeaudoin
, J.J.
, “Electrical Percolation Phenomena in Cement Composites Containing Conductive Fibers
,” J. Mater. Sci.
, Vol.31
, No. 15
, 1996
, pp.4093
–4097
. https://doi.org/10.1007/BF0035267361.
Tuan
, C.Y.
andYehia
, S.A.
, “Evaluation of Electrically Conductive Concrete Containing Carbon Products for Deicing
,” ACI Mater. J.
, Vol.101
, 2004
, pp.287
–293
.62.
Yehia
, S.
, “Electrically Conductive Concrete Proves Effective as Bridge Deicer
,” Road Bridges Tech. Art.
, Vol. 46
, 2008
, pp.56
–60
.63.
Wen
, S.
andChung
, D.D. L.
, “Electric Polarization in Carbon Fiber-Reinforced Cement
,”Cem. Concr. Res.
, Vol. 31
, No.1
, 2001
, pp.141
–147
. https://doi.org/10.1016/S0008-8846(00)00382-364.
Cao
, J.
andChung
, D.D. L.
, “Electric Polarization and Depolarization in Cement-Based Materials, Studied by Apparent Electrical Resistance Measurement
,” Cem. Concr. Res.
, Vol. 34
, No. 3
,2004
, pp.481
–485
. https://doi.org/10.1016/j.cemconres.2003.09.00365.
Pozar
, D.
,Microwave Engineering
, 4th ed., Wiley and Sons Inc.
,New York
, 2011
.66.
Casey
, K.F.
, “Electromagnetic Shielding Behavior of Wire-Mesh Screens
,” IEEE Trans. Electron. Compat.
, Vol. 30
, No.3
, 1988
, pp.298
–306
. https://doi.org/10.1109/15.330967.
Antonini
, G.
,Orlandi
, A.
, and D’elia
, S.
,2003
, “Shielding Effects of Reinforced Concrete Structures to Electromagnetic Fields Due to GSM and UMTS Systems
,” IEEE Trans. Magn.
, Vol.39
, No. 3
, pp.1582
–1585
. https://doi.org/10.1109/TMAG.2003.810327
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