Bibliografías temáticas / UHP-FRCC

Literatura académica sobre el tema "UHP-FRCC"

Autor: Grafiati
Publicado: 14 de marzo de 2023

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Artículos de revistas sobre el tema "UHP-FRCC"

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Nishiwaki, Tomoya, Oscar Mancinelli, Alessandro Pasquale Fantilli y Yuka Adachi. "Mechanical and Environmental Proprieties of UHP-FRCC Panels Bonded to Existing Concrete Beams". Sustainability 13, n.º 6 (11 de marzo de 2021): 3085. http://dx.doi.org/10.3390/su13063085.

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Among the techniques used to retrofit existing reinforced concrete structures, methods involving Ultra High Performance Fiber Reinforced Cementitious Composites (UHP-FRCC) are widely regarded. However, current practices make the use of this material for in-situ application expensive and complicated to perform. Accordingly, a new method to strengthen existing concrete beams by applying a precast UHP-FRCC layer on the bottom side are introduced and described herein. Two test campaigns are performed with the aim of defining the best conditions at the interface between the reinforcing layer and the existing beam and to reducing the environmental impact of UHP-FRCC mixtures. As a result, the eco-mechanical analysis reveals that the best performances are attained when the adhesion at interface is enhanced by means of steel nails on the upper surface of the UHP-FRCC layer, in which 20% of the cement is replaced by fly ash.
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2

Fantilli, Alessandro P., Lucia Paternesi Meloni, Tomoya Nishiwaki y Go Igarashi. "Tailoring Confining Jacket for Concrete Column Using Ultra High Performance-Fiber Reinforced Cementitious Composites (UHP-FRCC) with High Volume Fly Ash (HVFA)". Materials 12, n.º 23 (3 de diciembre de 2019): 4010. http://dx.doi.org/10.3390/ma12234010.

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Ultra-High Performance Fibre-Reinforced Cementitious Composites (UHP-FRCC) show excellent mechanical performances in terms of strength, ductility, and durability. Therefore, these cementitious materials have been successfully used for repairing, strengthening, and seismic retrofitting of old structures. However, UHP-FRCCs are not always environmental friendly products, especially in terms of the initial cost, due to the large quantity of cement that is contained in the mixture. Different rates of fly ash substitute herein part of the cement, and the new UHP-FRCCs are used to retrofit concrete columns to overcome this problem. To simulate the mechanical response of these columns, cylindrical specimens, which are made of normal concrete and reinforced with different UHP-FRCC jackets, are tested in uniaxial compression. Relationships between the size of the jacket, the percentage of cement replaced by fly ash, and the strength of the columns are measured and analyzed by means of the eco-mechanical approach. As a result, a replacement of approximately 50% of cement with fly ash, and a suitable thickness of the UHP-FRCC jacket, might ensure the lowest environmental impact without compromising the mechanical performances.
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3

Shaikh, Faiz UddinAhmed, Tomoya Nishiwaki y Sukmin Kwon. "Effect of fly ash on tensile properties of ultra-high performance fiber reinforced cementitious composites (UHP-FRCC)". Journal of Sustainable Cement-Based Materials 7, n.º 6 (2 de noviembre de 2018): 357–71. http://dx.doi.org/10.1080/21650373.2018.1514672.

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Capítulos de libros sobre el tema "UHP-FRCC"

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Nishiwaki, Tomoya, Sukmin Kwon, Hiroto Otaki, Go Igarashi, Faiz U. A. Shaikh y Alessandro P. Fantilli. "Experimental Study on Time-Dependent Behavior of Cracked UHP-FRCC Under Sustained Loads". En RILEM Bookseries, 101–9. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-024-1001-3_9.

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2

Fantilli, Alessandro P., Tomoya Nishiwaki, Valerio Lisi y Monica Longo. "The behavior of concrete columns confined by UHP-FRCC jacketing". En fib Bulletin 95. Fibre Reinforced Concrete: From Design to Structural Applications, 432–41. fib. The International Federation for Structural Concrete, 2020. http://dx.doi.org/10.35789/fib.bull.0095.ch44.

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