Flexural strengthening of RC beams with an externally bonded fabric-reinforced cementitious matrix

Saman Babaeidarabad, Giovanni Loreto, Antonio Nanni

Research output: Contribution to journalArticle

107 Scopus citations

Abstract

Concrete structures deteriorate for various reasons and upgrading is needed to ensure their continued safe working conditions. Retrofitting reinforced concrete (RC) beams have been accomplished using various techniques, namely, steel plates, external posttensioning, externally bonded fiber-reinforced polymer (FRP), and near-surface-mounted FRP systems to increase flexural and shear capacity. The objective of this paper is to investigate the feasibility of fabric-reinforced cementitious-matrix (FRCM) materials as an alternative external strengthening technique for RC members. The FRCM is a composite material consisting of one or more layers of cement-based matrix reinforced with dry-fiber fabric. The experimental program consists of testing 18 RC beams strengthened in flexure with two different FRCM schemes (one and four reinforcement fabrics). An analysis and design are conducted following the well-established formulation to calculate the flexural capacity of the beams and compare their results with the experimental database.

Original languageEnglish (US)
Article number04014009
JournalJournal of Composites for Construction
Volume18
Issue number5
DOIs
StatePublished - Oct 1 2014

Keywords

  • Fabric-reinforced cementitious matrix
  • Flexure
  • Reinforced concrete
  • Repair
  • Strengthening

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Ceramics and Composites
  • Mechanical Engineering
  • Mechanics of Materials

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