Now showing items 1-13 of 13

  • Assessment of fibre content and orientation in SFRC with the inductive method. Part 1: theoretical basis of the method and study of the influence of the type of coil and temperature on its accuracy 

    López Carreño, Rubén-Daniel; Pialarissi Cavalaro, Sergio Henrique; Pujadas Álvarez, Pablo; Galobardes Reyes, Isaac; Torrents Dolz, Josep M.; Aguado de Cea, Antonio; Domingues de Figueiredo, Antonio (2015)
    Conference report
    Open Access
    The inductive method is a non-destructive test which is capable to estimate both the fibre orientation and the fibre content in steel fibre reinforced concrete (SFRC) samples by the means of a coil and an impedance analyser. ...
  • Assessment of fibre content and orientation in SFRC with the inductive method. Part 2: Application for the quality control of sprayed concrete 

    Silva, Cesar L; Galobardes Reyes, Isaac; Pujadas Álvarez, Pablo; Monte, Renata; Domingues de Figueiredo, Antonio; Pialarissi Cavalaro, Sergio Henrique; Aguado de Cea, Antonio (2015)
    Conference report
    Open Access
    Concrete is the most used construction material in the world despite its fragility and low capacity to bear tensile stresses. Steel fibres may be added to increase the ductility of the material leading to fibre reinforced ...
  • Caracterização de segmentos de túneis fabricados com concreto reforçado com fibras 

    Galobardes Reyes, Isaac; Fuente Antequera, Albert de la; Domingues de Figueiredo, Antonio; Peixoto, Marco Aurelio (2015)
    Conference report
    Restricted access - publisher's policy
    A construção de túneis tem grande importância em cidades superpopulosas como é o caso de São Paulo, devido às suas grandes demandas de infraestrutura. Neste sentido, o sistema de escavação mecanizada (TBM) é uma alternativa ...
  • Compressive strength estimation of sprayed concrete at early ages 

    Galobardes Reyes, Isaac; Domingues de Figueiredo, Antonio; Pialarissi Cavalaro, Sergio Henrique; García Vicente, Tomàs; Rueda, Angel; Pérez, Jorge (2013)
    Conference report
    Restricted access - publisher's policy
    The sprayed concrete complies a construction technique that combines the placement and the compacting of concrete in only one process. This sort of concrete, which is widely used in underground constructions, requires a ...
  • Design of macro-synthetic fibre reinforced concrete pipes 

    Fuente Antequera, Albert de la; Campos Escariz, Renata; Domingues de Figueiredo, Antonio; Aguado de Cea, Antonio (2013-06-03)
    Article
    Restricted access - publisher's policy
    This paper presents an experimental campaign in which concrete pipes were manufactured using plastic fibres as the sole reinforcement material. In this regard, it has been demonstrated that the use of plastic fibres is ...
  • 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
    Restricted access - publisher's policy
    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 ...
  • 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 ...
  • Influence of spraying on the early hydration of accelerated cement pastes 

    Salvador, Renan; Pialarissi Cavalaro, Sergio Henrique; Cano, Miguel; Domingues de Figueiredo, Antonio (2016-10)
    Article
    Restricted access - publisher's policy
    In practice, most of the studies about the interaction between cement and accelerators is performed with hand-mixed pastes. However, in many applications mixing occurs through spraying, which may affect accelerators ...
  • Numerical simulation of steel fibre reinforced concrete pipes using constitutive equations based on the Barcelona test 

    Monte, Renata; Fuente Antequera, Albert de la; Domingues de Figueiredo, Antonio; Aguado de Cea, Antonio (American Concrete Institute (ACI), 2014)
    Conference report
    Restricted access - publisher's policy
    The use of fibres as main reinforcement for concrete pipes is recognized as an attractive alternative to the steel bars especially for smaller diameters. Nevertheless, the use of fibre reinforcement has not been consolidated ...
  • Parameters controlling early age hydration of cement pastes containing accelerators for sprayed concrete 

    Salvador, Renan; Pialarissi Cavalaro, Sergio Henrique; Cincotto, Maria Alba; Domingues de Figueiredo, Antonio (2016-11)
    Article
    Restricted access - publisher's policy
    The objective of this work is to parametrize the early age hydration behavior of accelerated cement pastes based on the chemical properties of cement and accelerators. Eight cements, three alkali-free and one alkaline ...
  • Propuesta de método de optimización de refuerzo de segmentos de túneles fabricados con hormigón reforzado con fibras 

    Fuente Antequera, Albert de la; Galobardes Reyes, Isaac; Domingues de Figueiredo, Antonio; Peixoto, Marco Aurelio (2015)
    Conference report
    Restricted access - publisher's policy
    The construction of underground lines has a big importance in overpopulated cities such as São Paulo. In that sense, the tunnel boring machine (TBM) method for tunnel construction is a method that allows a high speed of ...
  • Steel fiber reinforced concrete pipes. Part 1: technological analysis of the mechanical behavior 

    Domingues de Figueiredo, Antonio; Fuente Antequera, Albert de la; Aguado de Cea, Antonio; Molins i Borrell, Climent; Chama Neto, Pedro Jorge (2012-01)
    Article
    Open Access
    This paper is the first part of an extensive work focusing the technological development of steel fiber reinforced concrete pipes (FRCP). Here is presented and discussed the experimental campaign focusing the test procedure ...
  • Steel fiber reinforced concrete pipes. Part 2: Numerical model to simulate the crushing test 

    Fuente Antequera, Albert de la; Domingues de Figueiredo, Antonio; Aguado de Cea, Antonio; Molins i Borrell, Climent; Chama Neto, Pedro Jorge (2012-01)
    Article
    Open Access
    This paper is part of an extensive work about the technological development, experimental analysis and numerical modeling of steel fibre reinforced concrete pipes. The first part (“Steel fibre reinforced concrete pipes. ...