Mechanical and environmental proprieties of uhp-frcc panels bonded to existing concrete beams

Tomoya Nishiwaki, Oscar Mancinelli, Alessandro Pasquale Fantilli, Yuka Adachi

研究成果: Article査読

2 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号3085
ジャーナルSustainability (Switzerland)
13
6
DOI
出版ステータスPublished - 2021 3 2

ASJC Scopus subject areas

  • 地理、計画および開発
  • 再生可能エネルギー、持続可能性、環境
  • 管理、モニタリング、政策と法律

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