Ara es mostren els items 31-50 de 59

    • Inductive method for assessing the amount and orientation of steel fibers in concrete 

      Torrents Dolz, Josep M.; Blanco Álvarez, Ana; Pujadas Álvarez, Pablo; Aguado de Cea, Antonio; Juan Garcia, Pablo; Sánchez-Moragues, Miguel Ángel (2012-04-24)
      Article
      Accés restringit per política de l'editorial
      Steel 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 the type of fiber on the structural response and design of FRC slabs 

      Blanco Álvarez, Ana; Pujadas Álvarez, Pablo; Fuente Antequera, Albert de la; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (2016-09)
      Article
      Accés obert
      Most codes for the design of fiber reinforced concrete (FRC) structures are based on the experience achieved throughout the years with steel fibers. Recent codes include the possibility of applying the same considerations ...
    • Influencia del efecto escala en los parámetros de diseño de hormigón reforzado con fibras 

      Galeote Moreno, Eduardo; Blanco Álvarez, Ana; Fuente Antequera, Albert de la (2022)
      Text en actes de congrés
      Accés obert
      Debido a la reducción de la resistencia residual del hormigón reforzado con fibras (HRF) al incrementar el tamaño de un elemento, resulta de gran interés determinar el alcance del efecto escala para el cálculo de los ...
    • Lessons learned about the diagnosis of pathologies in concrete dams: 30 years of research and practice 

      Blanco Álvarez, Ana; Pardo Bosch, Francesc; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (Elsevier, 2019-02)
      Article
      Accés obert
      Studies on the diagnosis of pathologies of concrete dams are a valuable reference for professionals managing such assets. However, detailed information is rarely reported in the literature. This paper compiles the most ...
    • Luong test for the characterization of the shear post-cracking response of fiber reinforced concrete 

      Blanco Álvarez, Ana; Aire, Carlos; Pujadas Álvarez, Pablo; Pialarissi Cavalaro, Sergio Henrique (2017-09)
      Article
      Accés obert
      The behavior of concrete subjected to shear can be significantly improved by the addition of fibers, which may partially or totally substitute the traditional steel stirrups (also known as links). Design recommendations ...
    • Luong test to evaluate residual shear behavior of FRC 

      Aire Untiveros, Carlos Máximo; Blanco Álvarez, Ana; Pujadas Álvarez, Pablo; Pialarissi Cavalaro, Sergio Henrique (2016)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The behavior of concrete subjected to shear is a complex phenomenon; difficult to be evaluated experimentally. The characterization of the behavior of fiber reinforced concrete (FRC) under shear is even more complex since ...
    • Methodology for the design of controlled low-strength materials: application to the backfill of narrow trenches 

      Blanco Álvarez, Ana; Pujadas Álvarez, Pablo; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (2014-12)
      Article
      Accés restringit per política de l'editorial
      The design of controlled low-strength materials (CLSM) is generally based on experimental approaches without considering an efficient use of the component materials. The present study proposes a general methodology for the ...
    • Metodología para el diseño óptimo de dovelas de hormigón reforzado con fibras 

      Fuente Antequera, Albert de la; Pujadas Álvarez, Pablo; Blanco Álvarez, Ana; Aguado de Cea, Antonio (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      En este trabajo se presentan una de las experiencias más relevantes relativas al uso de fibras estructurales como refuerzo del hormigón substitución prácticamente toda la armadura pasiva tradicional en dovelas para anillos ...
    • Multidirectional double punch test to assess the post-cracking behaviour and fibre orientation of FRC 

      Pujadas Álvarez, Pablo; Blanco Álvarez, Ana; Pialarissi Cavalaro, Sergio Henrique; Fuente Antequera, Albert de la; Aguado de Cea, Antonio (2014-05-15)
      Article
      Accés restringit per política de l'editorial
      The wide variety of tests currently used for the characterization of fibre reinforced concrete (FRC) only allow a unidirectional characterization (without considering the orientation of the fibres in the matrix). However, ...
    • Multidirectional double punch test to assess the post-cracking behaviour of FRC 

      Pujadas Álvarez, Pablo; Blanco Álvarez, Ana; Pialarissi Cavalaro, Sergio Henrique; Fuente Antequera, Albert de la; Aguado de Cea, Antonio (2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Several authors have shown the direct influence of the orientation of the fibres on the residual strength of the material. From a design-oriented perspective, the anisotropy due to the dispersion and orientation of fibres ...
    • New analytical model to generalize the Barcelona Test using axial displacement 

      Pujadas Álvarez, Pablo; Blanco Álvarez, Ana; Pialarissi Cavalaro, Sergio Henrique; Fuente Antequera, Albert de la; Aguado de Cea, Antonio (2013)
      Article
      Accés restringit per política de l'editorial
      The Barcelona Test has proved to be very suitable for the systematic control of the tensile properties of Fibre Reinforced Concrete (FRC). Nevertheless, the need to measure the total circumferential opening displacement ...
    • Performance-based procedure for the definition of controlled low-strength mixtures 

      Pujadas Álvarez, Pablo; Blanco Álvarez, Ana; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (2015-11)
      Article
      Accés obert
      Controlled low-strength material (CLSM) is a self-consolidating cementitious material used as backfill in narrow trenches. The high content of aggregates and water in CLSM leads to a special behavior that is closer to soil ...
    • Plastic fibres as the only reinforcement for flat suspended slabs: Experimental investigation and numerical simulation 

      Pujadas Álvarez, Pablo; Blanco Álvarez, Ana; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (2014-01-27)
      Article
      Accés restringit per política de l'editorial
      This paper focuses on the study of the structural response of hyperstatic concrete flat suspended slabs reinforced only with structural plastic macro-fibres. First, the experimental program is described and then the results ...
    • Plastic fibres as the only reinforcement for flat suspended slabs: Parametric study and design considerations 

      Pujadas Álvarez, Pablo; Blanco Álvarez, Ana; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio; Grünewald, Steffen; Blom, C.B.M.; Walraven, Joost C. (2014-11-15)
      Article
      Accés restringit per política de l'editorial
      The use of constitutive equations from the standards to model flat suspended slabs reinforced only with plastic fibres leads to an overestimation of the experimental response of these elements. To address such problem, a ...
    • Proyecto constructivo de la EDAR y colectores de Losar de la Vera 

      Blanco Álvarez, Ana (Universitat Politècnica de Catalunya, 2009-01-09)
      Projecte/Treball Final de Carrera
      Accés obert
      En el proyecto se desarrollan los trabajos correspondientes a la construcción de los colectores y la Estación Depuradora de Aguas Residuales para el municipio de Losar de la Vera (Cáceres).
    • Sand-cement concrete in the century-old Camarasa dam 

      Blanco Álvarez, Ana; Segura Pérez, Ignacio; Pialarissi Cavalaro, Sergio Henrique; Chinchón Payá, Servando; Aguado de Cea, Antonio (2016-08)
      Article
      Accés obert
      Sand-cement emerged in the early twentieth century as an alternative binder in infrastructures that required a significant amount of concrete volume in order to reduce the costs associated with portland cement. This binder ...
    • Self-compacting concrete in the temple of Sagrada Familia 

      Rodríguez, Gemma; Blanco Álvarez, Ana; Pujadas Álvarez, Pablo; Aguado de Cea, Antonio (2017-09)
      Article
      Accés obert
      The Temple of Sagrada Familia presents singularities in terms of both the original design by architect Antoni Gaudí and the duration of the construction, which started more than 120 years ago. In fact, its design was ...
    • Shear behaviour of sprayed concrete 

      García Vicente, Tomàs; Blanco Álvarez, Ana; Pialarissi Cavalaro, Sergio Henrique (2016-10)
      Article
      Accés obert
      Shear in sprayed concrete (SC) may govern the design criteria in certain applications subjected to seismic loads or in bolted areas. However, it has been scarcely studied given the complexity of reproducing the production ...
    • Size effect on post-cracking strength of high performance fibre-reinforced concrete 

      Galeote Moreno, Eduardo; Blanco Álvarez, Ana; Fuente Antequera, Albert de la; Goodier, Chris; Austin, Simon (Springer, 2017)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The size effect is a well-known phenomenon in the design of reinforced concrete structures. Although it has been studied extensively for conventional concrete with or without traditional reinforcement, its influence on ...
    • Structural diagnosis of a concrete dam with cracking and high non-recoverable displacements 

      Campos, André; López Garello, Carlos María; Blanco Álvarez, Ana; Aguado de Cea, Antonio (2016-10)
      Article
      Accés obert
      Expansions in concrete dams may be caused by chemical or physical sources; however in certain occasions the evidences observed in the dam may not be attributed to a single cause. Mequinenza is an example of a concrete dam ...