Now showing items 21-40 of 83

  • Control procedures to check the a-O relationship used to design a SFRC slab 

    Martinelli, Paolo; Colombo, Matteo; Tratta, Matteo; Trentini, Davide; Pialarissi Cavalaro, Sergio Henrique; Fuente Antequera, Albert de la; Aguado de Cea, Antonio; Di Prisco, Marco (2016)
    Conference report
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    In the paper, the reliability of the Model Code approach for evaluating the bearing capacity of a Steel Fiber Reinforced Concrete (SFRC) elevated slab is discussed with reference to the case of a twostories family house ...
  • Correlación entre TCOD y desplazamiento axial en el ensayo Barcelona 

    Pujadas Álvarez, Pablo; Blanco Álvarez, Ana; Pialarissi Cavalaro, Sergio Henrique; Fuente Antequera, Albert de la; Aguado de Cea, Antonio (Asociacion Científica del Hormigón Estructural (ACHE), 2014)
    Conference report
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    La necesidad de medir el desplazamiento circunferencial (total circumferential opening displacemento TCOD ) en el ensayo Barcelona implica el uso de un caro extensómetro circunferencial. El modelo desarrollado en la presente ...
  • Correlation between the Barcelona test and the bending test in fibre reinforced concrete 

    Galeote Moreno, Eduardo; Blanco Álvarez, Ana; Pialarissi Cavalaro, Sergio Henrique; Fuente Antequera, Albert de la (Elsevier, 2017-10)
    Article
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    The Barcelona test (BCN) is an alternative method to characterize the post-cracking behaviour of fibre reinforced concrete (FRC). Given its simplicity, the reduced scatter of the results and low material consumption, the ...
  • Correlation between the Barcelona test and the three-point bending test for the characterization of SCFRC 

    Galeote Moreno, Eduardo; Pialarissi Cavalaro, Sergio Henrique; Fuente Antequera, Albert de la; Blanco Álvarez, Ana (Universidade do Porto, 2015)
    Conference report
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    Self-compacting concrete has proved itself to be a suitable solution in many scopes of construction industry. Its higher performance and better flowability has allowed considering its use in new applications. Nevertheless, ...
  • Correlation between the compressive strength and the modulus of elasticity of sprayed concrete 

    Galobardes Reyes, Isaac; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio; García Vicente, Tomàs; Rueda Alba, Angel Julian (2014)
    Conference report
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  • Correlation of residual strength and fibre orientation for highly anisotropic SFRC 

    Segura Castillo, Luis; Pialarissi Cavalaro, Sergio Henrique; Goodier, Chris; Austin, Simon; Aguado de Cea, Antonio (2016)
    Conference report
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    The objective of this research was to evaluate the mechanical response of Steel Fibre Reinforced Concrete (SFRC) with high anisotropy (produced by spraying). The results of an experimental program conducted with the ...
  • Design of FRC tunnel segments considering the ductility requirements of the MC-2010: application to the Barcelona Metro Line 9 

    Fuente Antequera, Albert de la; Liao, Lin; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (American Concrete Institute (ACI), 2014)
    Conference report
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    There are many advantages when using FRC in the manufacturing of segmental linings of tunnels built by means of a Tunnel Boring Machine (TBM). The use of steel fibre reinforced concrete (SFRC) improves, on the one hand, ...
  • Design of FRC tunnel segments considering the ductility requirements of the Model Code 2010 

    Liao, Lin; Fuente Antequera, Albert de la; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (2015-03)
    Article
    Open Access
    Fibre reinforced concrete (FRC) is used to improve the mechanical response of precast segments for tunnels. The structural use of the material has been regulated by national codes and, recently, by the Model Code 2010 (MC ...
  • Design procedure and experimental study on fibre reinforced concrete segmental rings for vertical shafts 

    Liao, Lin; Fuente Antequera, Albert de la; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (Elsevier, 2016-02)
    Article
    Open Access
    Structural fibres are used to replace partially or totally the passive reinforcement in precast concrete segments for tunnel linings constructed with TBM, showing several advantages. Fibre reinforced concrete (FRC) could ...
  • Discrete element modelling of the fresh state behavior of pervious concrete 

    Pieralisi, Ricardo; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (2016-12)
    Article
    Open Access
    The objective of this paper is to propose a novel numerical approach to evaluate the fresh state behavior of pervious concrete (PC). A new constitutive law applied to Discrete Element Method was developed for the simulation ...
  • Early age hydration of cement pastes with alkaline and alkali-free accelerators for sprayed concrete 

    Pícolo Salvador, Renan; Pialarissi Cavalaro, Sergio Henrique; Segura Pérez, Ignacio; Domingues de Figueiredo, Antonio; Pérez, Jorge (2016-05)
    Article
    Open Access
    The objective of this study is to evaluate the early age hydration mechanisms of accelerated CEM I pastes. Liquid phase analysis, conductimetry, isothermal calorimetry, in situ XRD and SEM were performed on cement pastes ...
  • Eco-trench: a novel trench solution based on reusing excavated material and a finishing layer of expansive concrete 

    Blanco Álvarez, Ana; Pujadas Álvarez, Pablo; Fernández Rubio, Cristina; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (Instituto Técnico de la Construcción y del Cemento, 2017-10)
    Article
    Open Access
    Installing utility pipelines generates a significant amount of trench arisings, which are usually transported to landfills instead of being reused as backfill material. This practice generates CO2 emissions and wastes raw ...
  • Effect of cement composition on the reactivity of alkali-free accelerating admixtures for shotcrete 

    Salvador, Renan; Pialarissi Cavalaro, Sergio Henrique; Rueda Alba, Angel Julian; Domingues de Figueiredo, Antonio (2014)
    Conference report
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    The evolution of mechanical strength in cement matrices is strongly dependent on cement properties and on the admixtures used. Limestone additions and accelerators, used in shotcrete, alter the hydration mechanisms of the ...
  • Effect of gypsum content in sprayed cementitious matrices: early age hydration and mechanical properties 

    Herrera Messen, Carlos; Salvador, Renan Pícolo; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (2019-01)
    Article
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    Sprayed materials must present short setting times and a fast early strength development for safety and productivity reasons. In order to improve these characteristics, the construction industry has focused on the development ...
  • Effects of biaxial confinement in mortars exposed to external sulfate attack 

    Ikumi Montserrat, Tai; Segura Pérez, Ignacio; Pialarissi Cavalaro, Sergio Henrique (2019-01)
    Article
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    Research on external sulfate attack (ESA) is usually performed on small scale specimens under free expanding conditions. However, most field structures cannot expand freely due to confinement induced by the ground or other ...
  • Evaluation of concrete-steel bond strength in wet mix sprayed concrete 

    García Vicente, Tomàs; Pialarissi Cavalaro, Sergio Henrique; Pérez Cacho, Jorge; Rueda, Angel; Domingues de Figueiredo, Antonio (2014)
    Conference report
    Open Access
    The high performance obtained in wet mix sprayed concrete has extended the field of applications of this technique. In some of these applications, such as in diaphragm walls or bridge rehabilitation, the structure may be ...
  • Evolutionary lattice model for the compaction of pervious concrete in the fresh state 

    Pieralisi, Ricardo; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (2015-11)
    Article
    Open Access
    This paper presents a simplified model for the simulation of the compaction of deformable granular materials such as pervious concrete in the fresh state. The strategy is to use an evolutionary lattice system with local ...
  • Evolution of pyrrhotite oxidation in aggregates for concrete 

    Oliveira da Silva, Izelman; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (2014-11-17)
    Article
    Open Access
    Rocks containing pyrrhotite bands are sometimes used to produce concrete. These rocks oxidize and produce long-term expansive reactions that damage concrete structures, leading to important economic and risk related ...
  • Expansion of mortars with gypsum contaminated fine recycled aggregates 

    Tovar Rodríguez, Gustavo Enrique; Barra Bizinotto, Marilda; Pialarissi Cavalaro, Sergio Henrique; Aponte Hernández, Diego Fernando; Vázquez Ramonich, Enric (2012-09-20)
    Article
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    This study evaluates the expansivity of fine recycled aggregates mortars depending on the type of Portland cement, the consistency and the equivalent of acid soluble sulphates (SO3) content. For that, an experimental ...
  • Expansions with different origins in a concrete dam with bridge over spillway 

    Blanco Álvarez, Ana; Pialarissi Cavalaro, Sergio Henrique; Segura Pérez, Ignacio; Segura Castillo, Luis; Aguado de Cea, Antonio (Elsevier, 2018-02)
    Article
    Open Access
    Concrete dams with expansions from different origins are rare and scarcely documented in the literature, therefore their study gains special interest. This study presents the case of a 62-year-old concrete dam with signs ...