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    Volume 49, Issue 6 (April 2021)

    Reliability of Different Test Setups and Influence of Mortar Mixture on the Fabric-Reinforced Cementitious Matrix-to-Brick Bond Response

    (Received 1 October 2020; accepted 15 December 2020)

    Published Online: 02 April 2021

    CODEN: JTEVAB

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    Abstract

    The results of four different bond tests, conducted on specimens made of bricks and fabric-reinforced cementitious matrix (FRCM) composite strips, are presented in this article. The composites consisted of a basalt textile embedded in four types of inorganic matrices: a commercial product made of lime mortar and three different mortars properly prepared in the laboratory. Bond tests were carried out to highlight variations in the bond behavior of the four composites. The experimental campaign, for all the tested composites, confirmed that the debonding mechanism occurs at the textile-matrix interface with large differences, in terms of load carrying capacity, between the four typologies of FRCM composite. In particular, composites made up of a commercial matrix were demonstrated to be the best ones to fully exploit the tensile strength, whereas composites made up of cement-lime mortar showed the worst bond behavior. Furthermore, the results of the four bond tests conducted on the same type of composite were compared to evaluate the reliability of the different types of bond tests. Among the apparatus used to conduct the four bond tests, the single shear test was demonstrated to be the most effective for determining the actual bond performances of FRCM composites.

    Author Information:

    Alecci, Valerio
    Department of Architecture, Materials and Structures Section, University of Florence, Firenze,

    Barducci, Sara
    Department of Architecture, Materials and Structures Section, University of Florence, Firenze,

    Stefano, Mario De
    Department of Architecture, Materials and Structures Section, University of Florence, Firenze,

    Galassi, Stefano
    Department of Architecture, Materials and Structures Section, University of Florence, Firenze,

    Luciano, Raimondo
    Department of Engineering, University of Naples Parthenope, Napoli,

    Rovero, Luisa
    Department of Architecture, Materials and Structures Section, University of Florence, Firenze,

    Stipo, Gianfranco
    Department of Architecture, Materials and Structures Section, University of Florence, Firenze,


    Stock #: JTE20200656

    ISSN:0090-3973

    DOI: 10.1520/JTE20200656

    Author
    Title Reliability of Different Test Setups and Influence of Mortar Mixture on the Fabric-Reinforced Cementitious Matrix-to-Brick Bond Response
    Symposium ,
    Committee D30