Application of A.C. impedance techniques in studies of porous cementitious materials. (II): Relationship between ACIS Behavior and the Porous Microstructure

Zhongzi Xu; Ping Gu; Ping Xie; J. J. Beaudoin

doi:10.1016/0008-8846(93)90039-C

Application of A.C. impedance techniques in studies of porous cementitious materials. (II): Relationship between ACIS Behavior and the Porous Microstructure

Zhongzi Xu, Ping Gu, Ping Xie, J. J. Beaudoin

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Abstract

The relationship between A.C. impedance parameters and the structure of porous cementitious systems was investigated. Theoretical equations relating the high frequency semicircle diameter to the descriptors of ionic concentration in the pore solution have been derived from the application of electrochemical and surface chemical principles to these systems. It is apparent that there is a linear relation between the semicircle diameter and the reciprocal of the square root of ionic concentration. The semicircle diameter was also found to be inversely proportional to the product of porosity and mean pore size. These equations have been confirmed by experiment with porous cementitious systems. It is concluded that the microstructure of porous materials can be characterized by parameters determined by application of A.C. impedance techniques.

Original language	English
Pages (from-to)	853-862
Number of pages	10
Journal	Cement and Concrete Research
Volume	23
Issue number	4
DOIs	https://doi.org/10.1016/0008-8846(93)90039-C
State	Published - Jul 1993
Externally published	Yes

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title = "Application of A.C. impedance techniques in studies of porous cementitious materials. (II): Relationship between ACIS Behavior and the Porous Microstructure",

abstract = "The relationship between A.C. impedance parameters and the structure of porous cementitious systems was investigated. Theoretical equations relating the high frequency semicircle diameter to the descriptors of ionic concentration in the pore solution have been derived from the application of electrochemical and surface chemical principles to these systems. It is apparent that there is a linear relation between the semicircle diameter and the reciprocal of the square root of ionic concentration. The semicircle diameter was also found to be inversely proportional to the product of porosity and mean pore size. These equations have been confirmed by experiment with porous cementitious systems. It is concluded that the microstructure of porous materials can be characterized by parameters determined by application of A.C. impedance techniques.",

author = "Zhongzi Xu and Ping Gu and Ping Xie and Beaudoin, {J. J.}",

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AU - Gu, Ping

AU - Xie, Ping

AU - Beaudoin, J. J.

PY - 1993/7

Y1 - 1993/7

N2 - The relationship between A.C. impedance parameters and the structure of porous cementitious systems was investigated. Theoretical equations relating the high frequency semicircle diameter to the descriptors of ionic concentration in the pore solution have been derived from the application of electrochemical and surface chemical principles to these systems. It is apparent that there is a linear relation between the semicircle diameter and the reciprocal of the square root of ionic concentration. The semicircle diameter was also found to be inversely proportional to the product of porosity and mean pore size. These equations have been confirmed by experiment with porous cementitious systems. It is concluded that the microstructure of porous materials can be characterized by parameters determined by application of A.C. impedance techniques.

AB - The relationship between A.C. impedance parameters and the structure of porous cementitious systems was investigated. Theoretical equations relating the high frequency semicircle diameter to the descriptors of ionic concentration in the pore solution have been derived from the application of electrochemical and surface chemical principles to these systems. It is apparent that there is a linear relation between the semicircle diameter and the reciprocal of the square root of ionic concentration. The semicircle diameter was also found to be inversely proportional to the product of porosity and mean pore size. These equations have been confirmed by experiment with porous cementitious systems. It is concluded that the microstructure of porous materials can be characterized by parameters determined by application of A.C. impedance techniques.

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Application of A.C. impedance techniques in studies of porous cementitious materials. (II): Relationship between ACIS Behavior and the Porous Microstructure

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