Python GUI for impedance spectroscopy analysis

Rech, Giovani Luís; Perottoni, C. A.

doi:10.18226/23185279.v6iss2p10

Cited by 2 publications

(1 citation statement)

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“…Although impedance spectroscopy is a relatively simple and fast technique, the interpretation of results is not straightforward. The interpretation of a dielectric material impedance spectrum is based on the proposal of an equivalent circuit, where the number and nature of the elements vary according to the particular experimental conditions, composition, and microstructure of the sample [28].…”

Section: Introductionmentioning

confidence: 99%

Influence of an over calcined calcium oxide-based shrinkage-compensating admixture on some properties of a self-compacting concrete

et al. 2022

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The demand for self-compacting concrete grows continuously due to investments in new infrastructure, upgrades, or replacement of old infrastructure. This type of concrete can mold itself into the spaces intended for it on its own and fill them without the need for any vibration or external compaction. It must achieve three main properties: fluidity, passing ability, and resistance to segregation. Monitoring these properties, the quality, and the increase in the performance of concrete structures is essential to keep up with this growth. In this work, we explore the effect of adding a commercial over calcined calcium oxide-based compound, as a shrinkage-compensating admixture, on the properties of fresh and hardened concrete, particularly on the shrinkage and curing of self-compacting concrete specimens (SCC). Also, an experimental protocol is proposed for the electrical impedance analysis of concrete samples. Fluidity, compression, shrinkage, elastic modulus, and impedance spectroscopy tests were performed, in addition to scanning electron microscopy images. The additive slightly modifies the concrete properties in the fresh state. In hardened concrete, the compressive strength and modulus of elasticity increase, in addition to a reduction in shrinkage with 2.8% of the additive.

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Section: Introductionmentioning

confidence: 99%