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Listar por autor "Eiras Fernández, Jesús Nuño"

Mostrando ítems 1-11 de 11

DISEÑO DE MEZCLAS CEMENTANTES CON RESIDUOS DE NEUMÁTICOS PARA LA OBTENCIÓN DE MATERIALES LIGEROS Y AISLANTES

Eiras Fernández, Jesús Nuño (Universitat Politècnica de València, 2011-11-08)

La gestión de neumáticos fuera de uso (NFU) requiere de soluciones creativas, dado que no pueden ser depositados en vertederos controlados. La valorización energética no es una solución integral; sin embargo, este tipo de ...
Dynamic acousto-elastic test using continuous probe wave and transient vibration to investigate material nonlinearity

Eiras Fernández, Jesús Nuño; Vu, Quang Ahn; Lott, Martin; Paya Bernabeu, Jorge Juan; Garnier, Vincent; Payan, Cédric (Elsevier, 2016)

This study demonstrates the feasibility of the dynamic acousto-elastic effect of a continuous high frequency wave for investigating the material nonlinearity upon transient vibration. The approach is demonstrated on a ...
EFECTO DE LA ADICIÓN DE PUZOLANAS ACTIVAS EN LA DURABILIDAD DEL GRC FABRICADO CON FIBRAS DE VIDRIO TIPO E

Eiras Fernández, Jesús Nuño (Universitat Politècnica de València, 2011-11-15)

Este trabajo estudia la influencia que ejercen en la durabilidad de morteros GRC, tanto el tratamiento previo al amasado de impregnación de las fibras con una lechada de ceniza volante molida, como la sustitución de cemento ...
Effect of carbonation on the linear and nonlinear dynamic properties of cement-based materials

Eiras Fernández, Jesús Nuño; Kundu, Tribikram; Popovics, John Sandor; Monzó Balbuena, José Mª; Borrachero Rosado, María Victoria; Paya Bernabeu, Jorge Juan (Society of Photo-optical Instrumentation Engineers (SPIE), 2016)

[EN] Carbonation causes a physicochemical alteration of cement-based materials, leading to a decrease of porosity and an increase of material hardness and strength. However, carbonation will decrease the pH of the internal ...
Multimodal analysis of GRC ageing process using Nonlinear Impact Resonance acoustic Spectroscopy

Genovés Gómez, Vicente; Riestra García-San Miguel, Covadonga; Borrachero Rosado, María Victoria; Eiras Fernández, Jesús Nuño; Kundu, T.; Paya Bernabeu, Jorge Juan (Elsevier, 2015-07)

Glass fibre Reinforced Cement (GRC) is a composite material composed of Portland cement mortar with low w/c (water/cement) ratio and high proportion of glass fibres. This material suffers from the ageing process by losing ...
Non-Classical nonlinear feature extraction from standard resonance vibration data for damage detection

Eiras Fernández, Jesús Nuño; Monzó Balbuena, José Mª; Paya Bernabeu, Jorge Juan; Kundu, T.; Popovics, J.S. (Acoustical Society of America, 2014-02)

Dynamic non-classical nonlinear analyses show promise for improved damage diagnostics in materials that exhibit such structure at the mesoscale, such as concrete. In this study, nonlinear non-classical dynamic material ...
Nondestructive monitoring of ageing of Alkali resistant Glass fiber reinforced cement (GRC)

Eiras Fernández, Jesús Nuño; Kundu, Tribikram; Bonilla Salvador, María Mercedes; Paya Bernabeu, Jorge Juan (Elsevier, 2013-06)

Glass fiber reinforced cement (GRC) is a composite material made of portland cement mortar and alkali resistant (AR) fibers. AR fibers are added to portland cement to give the material additional flexural strength and ...
Physical and mechanical properties of foamed Portland cement composite containing crumb rubber from worn tires

Eiras Fernández, Jesús Nuño; Segovia Rueda, Francisco; Borrachero Rosado, María Victoria; Monzó Balbuena, José Mª; Bonilla Salvador, María Mercedes; Paya Bernabeu, Jorge Juan (Elsevier, 2014-07)

The management of worn tires is a concern in industrialized countries. The application of crumb rubber as lightweight aggregate in cement based materials is a green alternative for reusing this material. High replacements ...
Preliminary study on short-term sulphate attack evaluation by nonlinear impact resonance acoustic spectroscopy technique

Genovés Gómez, Vicente; Soriano Martínez, Lourdes; Borrachero Rosado, María Victoria; Eiras Fernández, Jesús Nuño; Paya Bernabeu, Jorge Juan (Elsevier, 2015-03)

The scope of this paper is to study the sulphate attack on concrete with new testing methods based on vibrational spectroscopy with mechanical waves. These are based on Non-linear Impact Resonance Acoustic Spectroscopy ...
Studies on nonlinear mechanical wave behavior to characterize cement based materials and its durability

Eiras Fernández, Jesús Nuño (Universitat Politècnica de València, 2016-10-10)

[EN] The test for determining the resonance frequencies has traditionally been used to investigate the mechanical integrity of concrete cores, to assess the conformity of concrete constituents in different accelerated ...
The effects of moisture and micro-structural modifications in drying mortars on vibration-based NDT methods

Eiras Fernández, Jesús Nuño; Popovics, John Sandor; Borrachero Rosado, María Victoria; Monzó Balbuena, José Mª; Paya Bernabeu, Jorge Juan (Elsevier, 2015-09)

In this paper, we investigate the utility of vibration-based NDT tests to detect the subtle microstructural modifications and cracking damage in Portland cement mortars subjected to oven drying treatment. Both linear ...