P
Ping Xie
Researcher at University of Ottawa
Publications - 37
Citations - 1489
Ping Xie is an academic researcher from University of Ottawa. The author has contributed to research in topics: Portland cement & Cement. The author has an hindex of 17, co-authored 37 publications receiving 1334 citations. Previous affiliations of Ping Xie include National Research Council.
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Electrical percolation phenomena in cement composites containing conductive fibres
TL;DR: In this paper, electrical conductivity measurements on cement composites containing carbon fibres or steel fibres were conducted, and percolation phenomena associated with electrical conductivities were observed.
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A.C. impedance spectroscopy (I): A new equivalent circuit model for hydrated portland cement paste
TL;DR: In this paper, the mechanism of hydration of portland cement paste was investigated using impedance spectroscopy, from 48 to 380 hours, and the results were complemented by equivalent circuit modelling.
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A rationalized a.c. impedence model for microstructural characterization of hydrating cement systems
TL;DR: In this article, an electrical conductivity model for hydrating portland cement systems has been developed and the high frequency a.c. impedance technique for characterizing the microstructure of cement paste and the hydration process of cement has been rationalized quantitatively.
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A.C. impedance spectroscopy (II): Microstructural characterization of hydrating cement-silica fume systems
TL;DR: In this paper, the influence of silica fume on impedance behavior of hydrating cement has been carefully investigated, and the results demonstrate that impedance measurement is very sensitive to changes in hydration kinetics and microstructure development due to the presence of Silica Fume.
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Application of A.C. impedance techniques in studies of porous cementitious materials
TL;DR: In this paper, the influence of ionic concentration of pore solution and matrix porosity on high frequency resistance (HFR) of hydrated cement paste was carefully studied and a new relation between HFR and porosity has been derived and its validity demonstrated by a series of experiments.