Exploració per autor "Torrents Dolz, Josep M."
Ara es mostren els items 19-31 de 31
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Improved assessment of fibre content and orientation with inductive method in SFRC
(2015-06)
Article
Accés obertThe inductive method is a robust and simple non-destructive test to assess the content and the distribution of steel fibres in FRC. Despite the advantages in comparison with other methods, further studies are still needed ... -
Inductive method for assessing the amount and orientation of steel fibers in concrete
(2012-04-24)
Article
Accés restringit per política de l'editorialSteel fibers are ferromagnetic and they have the property of altering the magnetic field around them. This paper discusses a method and gives a practical example to measure, non-destructively, the amount and orientation ... -
Influence of fiber properties on the inductive method for the steel-fiber-reinforced concrete characterization
(2016-08-01)
Article
Accés obertThe inductive method has shown to be a good method for the estimation of fiber dosage in steel-fiber-reinforced concrete. The current formulations reported a strong correlation between inductance and fiber content, as well ... -
Measurement of moisture in mortar using a coplanar waveguide
(2009)
Text en actes de congrés
Accés obertIncreasingly more non-destructive testing methods are being developed in a civil engineering context, but many of them cannot be applied when only one surface of the structure can be accessed. In order to measure moisture ... -
Measurement of mortar permittivity during setting using a coplanar waveguide
(2010-03)
Article
Accés obertA sensor based on a coplanar waveguide structure was designed to perform non-destructive tests for material characterization in which the measurement can be done only on one side of the sample. The measurements were compared ... -
Method for forming a magnec field of arbitrary shape from an established template
(Universitat Politècnica de Catalunya (UPC), 2013)
Text en actes de congrés
Accés obertA strategy to design a particular form of magnetic field along an axis from a coaxial inductor is described. The procedure is illustrated with the design of a constant magnetic field inside a cubic inductor. It validates ... -
Method for forming a magnetic field of arbitrary shape from an established template
(Universitat Politècnica de Catalunya (UPC), 2013)
Text en actes de congrés
Accés obertA strategy to design a particular form of magnetic field along an axis from a coaxial inductor is described. The procedure is illustrated with the design of a constant magnetic field inside a cubic inductor. It validates ... -
Non-destructive test approach for assessing the amount of fibre in polymeric fibre reinforced concrete
(Elsevier, 2022-01)
Article
Accés obertOver the past decade, significant efforts have been made to develop polymeric-based macro-fibre reinforced concrete (PFRC) for structural applications. Consequently, remarkable growth has been reported in the use of this ... -
Self-sensing concrete made from recycled carbon fibres
(2019-10)
Article
Accés obertThe electrical and piezo-resistive responses of recycled carbon fibre (rCF)-reinforced concrete is analysed in this article. Two different PAN-based rCFs (monofilament rCF and fibrillated rCF sheets) incorporated into dry ... -
Subsurface resistivity measurements using square waveforms
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1998-02-28)
Article
Accés obertThis work analyzes the effect of inductive and capacitive coupling between the injecting circuit and the detecting circuit in resistive field surveys. Theoretical and experimental results demonstrate that if a square ... -
Surveillance of steel fibre reinforced concrete slabs measured with an open-ended coaxial probe
(2009)
Text en actes de congrés
Accés obertConventional concrete structures are nowadays being substituted by steel fibre reinforced concrete (SFRC) in some structural applications. Then, fibre dosage and distribution is a keyword for ensuring quality control of ... -
The floating capacitor as a differential building block
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1998-02-28)
Article
Accés obertThis paper analyzes the advantages and limitations of using the floating- (or flying-) capacitor technique as a building block with differential input and either differential or single-ended output to implement voltage ... -
Uncertainty analysis in two-terminal impedance measurements with residual correction
(Institute of Electrical and Electronics Engineers, 2001-05)
Text en actes de congrés
Accés obertResidual impedance correction in impedance analyzers when using an asymmetrical test fixture needs three reference measurements, usually open circuit, short circuit, and load (meaning an impedance close to the impedance ...
