Piezoelectric cement-based materials with large coupling and voltage coefficients |
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| Authors: | Sihai WenDDL Chung |
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| Affiliation: | Composite Materials Research Laboratory, Department of Mechanical and Aerospace Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260-4400, USA |
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| Abstract: | Cement paste containing short steel fibers (8 μm diameter, 0.18 vol.%) and polyvinyl alcohol (0.16 vol.%) exhibits longitudinal piezoelectric coupling coefficient d=2.5×10−11 m/V and piezoelectric voltage coefficient g=1.1×10−3 m2/C (10 kHz), compared to values of d=3.0×10−13 m/V and g=1.1×10−3 m2/C for cement paste without admixture, and values of d=1.4×10−11 m/V and g=1.5×10−3 m2/C for lead zirconotitanate (PZT). |
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| Keywords: | Electrical properties Strain effect Cement paste Fiber reinforcement Piezoelectric |
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