FRCM mechanical properties using carbon fabrics with different coating treatments

Jacopo Donnini, Valeria Corinaldesi, Antonio Nanni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

A key concept of sustainability is the preservation of resources, thus adding life to existing concrete structures by means of durable strengthening and rehabilitation methods is a key objective. Composite materials, such as FRCM (Fabric-reinforced Cementitious Matrix), have proven to be a viable option for increasing durability of existing building stock. Experimental works show that the main failure mode of FRCM, applied to masonry or concrete substrates, is by debonding at the fabric/matrix interface. Mere, the idea is to use an epoxy coating and a layer of quartz sand in order to increase the adhesion of the fabric with the matrix. The effectiveness of coating treatments was studied by means of tensile tests, as indicated in AC434 Annex A. Tests were carried out on seven different types of fabric, with different levels of pre-impregnation and with or without quartz sand applied to the fabric surface. Experimental evidence shows a promising enhancement of the bond between fabric and matrix and, therefore, of the entire strengthening system even with the use of low percentages of resin, depending on the type of mortar.

Original languageEnglish (US)
Title of host publicationAmerican Concrete Institute, ACI Special Publication
PublisherAmerican Concrete Institute
Pages8.1-8.12
Volume2015-January
EditionSP 305
StatePublished - 2015
Event1st International Workshop on Durability and Sustainability of Concrete Structures, DSCS 2015 - Bologna, Italy
Duration: Oct 1 2015Oct 3 2015

Other

Other1st International Workshop on Durability and Sustainability of Concrete Structures, DSCS 2015
CountryItaly
CityBologna
Period10/1/1510/3/15

Keywords

  • Bonding
  • Carbon fabric
  • Concrete
  • FRCM
  • Masonry
  • Organic coating

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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  • Cite this

    Donnini, J., Corinaldesi, V., & Nanni, A. (2015). FRCM mechanical properties using carbon fabrics with different coating treatments. In American Concrete Institute, ACI Special Publication (SP 305 ed., Vol. 2015-January, pp. 8.1-8.12). American Concrete Institute.