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- W2367717249 abstract "Electrical conductivity of polymer-modified mortars (PMM) with different volume fractions of sand was measured using an alternating current impedance spectroscopy. The conductance of PMM was discussed based on the effective media theory. Using a model of concrete in which the aggregates are spherical and nonconductive particles, the ratio of the interfacial transition zone (ITZ) electrical conductivity and the matrix electrical conductivity σ_(ITZ)/σ_(m) were calculated. The values of σ_(ITZ)/σ_(m) for polymer-modified mortars decreased rapidly from 5—9 to about 3 within the first 3 d and then stays almost constant, which are different from the ordinary cement mortars. Results indicate that the conductance of the ITZ reduces more quickly than that of the matrix in polymer-modified mortars. In addition, the concentration and the film-forming of the polymer in ITZ are the main reason from the results of the conductance for polymer-modified cement paste and the latex during its film-forming process. A proper approach for the selection of the technology of the polymer-modified mortar and concrete was proposed." @default.
- W2367717249 created "2016-06-24" @default.
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- W2367717249 date "2004-01-01" @default.
- W2367717249 modified "2023-09-25" @default.
- W2367717249 title "ELECTRICAL CONDUCTIVITY IN INTERFACIAL TRANSITION ZONE OF POLYMER-MODIFIED MORTARS" @default.
- W2367717249 hasPublicationYear "2004" @default.
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