2018
DOI: 10.1016/j.matdes.2018.06.045
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Determining porosity and pore network connectivity of cement-based materials by a modified non-contact electrical resistivity measurement: Experiment and theory

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Cited by 119 publications
(26 citation statements)
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“…The formation factor is also defined as the ratio of the resistivity of the bulk sample and the resistivity of the pore solution [299]. It can thus be used for determining the capillary porosity and pore tortuosity of fresh and hardened concrete [300,301]. This factor is also related to the diffusion coefficient through the Nernst-Einstein relationship (Eq.…”
Section: Relation To Concrete Durabilitymentioning
confidence: 99%
“…The formation factor is also defined as the ratio of the resistivity of the bulk sample and the resistivity of the pore solution [299]. It can thus be used for determining the capillary porosity and pore tortuosity of fresh and hardened concrete [300,301]. This factor is also related to the diffusion coefficient through the Nernst-Einstein relationship (Eq.…”
Section: Relation To Concrete Durabilitymentioning
confidence: 99%
“…11a,b that even under the same curing condition, the ACISs are significantly different with different conductive media, the diameters of the impedance spectrum arcs are: CG > SS > SCH. According to the generalized effective medium (GEM) theory 50,51 , generally electrical conduction is more likely (12) 5Z t4 (p = 10) − Z t4 (p = 2) = 4Z 4ic (13) Z 4ic = 5Z t4 (p = 10) − Z t4 (p = 2) 4 www.nature.com/scientificreports/ to take place through the more conductible phases for a composite material with different electrical conductivity for each component 52 . For a cement paste specimen, the conductivity of solid phases (cement clinkers, hydration products) and vapor phases are lower several orders than the liquid phase 53,54 , therefore, the impedance of the specimen is mainly determined by the pore structure and pore solution.…”
Section: Evaluation Of the Contact Impedance In The Two-point Measurementioning
confidence: 99%
“…The electrical resistivity of cementitious materials is an important durability index since it can be directly related with the chloride transportation performance [1,2] and the microstructure [14] of concrete structures. There are many electrical resistivity measurements have been proposed.…”
Section: Introductionmentioning
confidence: 99%