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Dive into the research topics where Antonio Conforti is active.

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Featured researches published by Antonio Conforti.


HAC 2018. V Congreso Iberoamericano de hormigón autocompactable y hormigones especiales | 2018

Estudio comparativo de la orientación del refuerzo en losas de hormigón autocompactante reforzado con fibras poliméricas y de acero

Antonio Conforti; Giovanni Plizzari; R. Zerbino

Diversos trabajos han analizado los factores que modifican la orientacion de las fibras cuando se incorporan al hormigon autocompactante, entre los que se destacan el efecto pared y la velocidad de flujo. Como consecuencia se puede producir una respuesta anisotropica en los elementos estructurales que depende de la forma de vertido y de la geometria de los mismos. Este trabajo analiza la orientacion de las fibras y sus efectos sobre las propiedades mecanicas en losas rectangulares de 1800 mm de largo, 925 mm de ancho y 100 mm de altura que fueron moldeadas con 4 hormigones autocompactantes que incorporan diferentes tipos de fibras de acero y macrofibras polimericas, todos elaborados a partir de un mismo hormigon de base. De cada losa se aserraron 18 prismas de 550 mm de largo en direcciones normal y perpendicular a la direccion que luego se ensayaron de acuerdo a lo establecido en la norma EN 14651. Finalizados los mismos se realizo un conteo de la densidad de fibras en las superficies de fractura. Como referencia tambien se realizaron ensayos similares sobre prismas de 150 x 100 x 600 mm y ensayos de compresion sobre cubos. Los resultados obtenidos ponen en evidencia el efecto del tipo de fibra y el grado de variabilidad que puede ocurrir en este tipo de elementos estructurales. DOI:http://dx.doi.org/10.4995/HAC2018.2018.5496


IOP Conference Series: Materials Science and Engineering | 2017

Vibrated and self-compacting fibre reinforced concrete: experimental investigation on the fibre orientation

Antonio Conforti; Giovanni Plizzari; R Zerbino

In addition to the fibre type and content, the residual properties of fibre reinforced concrete are influenced by fibre orientation. Consequently, the performance fibre reinforced concrete can be affected by its fresh properties (workability, flowing capacity) and by casting and compaction processes adopted. This paper focuses on the study of the orientation of steel or macro-synthetic fibres in two materials characterized by very different fresh properties: vibrated and self-compacting concrete. Four rectangular slabs 1800 mm long, 925 mm wide and 100 mm high were produced changing concrete and fibre type. From each slab, eighteen small prisms (550 mm long) were firstly cut either orthogonal or parallel to casting direction and, secondly, notched and tested in bending according to EN 14651. Experimental results showed that the toughness properties of a thin slab significantly varies both in vibrated and self-compacting concrete, even if in case of self-compacting concrete this variation resulted higher. Steel fibres led to greater variability of results compared to polymer one, underlining a different fibre orientation. A discussion on the relative residual capacity measured on the prisms sawn from the slabs and the parameters obtained from standard specimens is performed.


Materials and Structures | 2014

Are steel fibres able to mitigate or eliminate size effect in shear

Fausto Minelli; Antonio Conforti; Estefanía Cuenca; Giovanni Plizzari


Engineering Structures | 2015

Influence of polypropylene fibre reinforcement and width-to-effective depth ratio in wide-shallow beams

Antonio Conforti; Fausto Minelli; Andrea Tinini; Giovanni Plizzari


Composites Part B-engineering | 2013

Wide-shallow beams with and without steel fibres: A peculiar behaviour in shear and flexure

Antonio Conforti; Fausto Minelli; Giovanni Plizzari


Tunnelling and Underground Space Technology | 2015

Precast segments under TBM hydraulic jacks: Experimental investigation on the local splitting behavior

Giuseppe Tiberti; Antonio Conforti; Giovanni Plizzari


Materials and Structures | 2015

Improving shear strength of unreinforced masonry walls by nano-reinforced fibrous mortar coating

Luca Facconi; Antonio Conforti; Fausto Minelli; Giovanni Plizzari


Tunnelling and Underground Space Technology | 2017

Precast tunnel segments reinforced by macro-synthetic fibers

Antonio Conforti; Giuseppe Tiberti; Giovanni Plizzari; Angelo Caratelli; Alberto Meda


Composites Part B-engineering | 2016

Splitting and crushing failure in FRC elements subjected to a high concentrated load

Antonio Conforti; Giuseppe Tiberti; Giovanni Plizzari


Materials and Structures | 2016

Compression field modelling of fibre reinforced concrete shear critical deep beams: a numerical study

Antonio Conforti; Fausto Minelli

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R. Zerbino

National Scientific and Technical Research Council

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Estefanía Cuenca

Polytechnic University of Valencia

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Alberto Meda

University of Rome Tor Vergata

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Angelo Caratelli

University of Rome Tor Vergata

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