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Title: Experimental Research on Bond Behaviour of Fabric Reinforced Cementitious Matrix Composites for Retrofitting Masonry Walls

Author(s): Fayu Wang, Nicholas Kyriakides, Christis Chrysostomou, Eleftherios Eleftheriou, Renos Votsis and Rogiros Illampas

Publication: IJCSM

Volume: 15

Issue:

Appears on pages(s):

Keywords: cementitious composite materials, fabric reinforced cementitious matrix, fibre fabric, textile reinforced mortars, seismic resistance upgrading, bond behaviour, retrofitting masonry walls

Date: 5/31/2021

Abstract:
Fabric reinforced cementitious matrix (FRCM) composites, also known as textile reinforced mortars (TRM), an inor-ganic matrix constituting fibre fabrics and cement-based mortar, are becoming a widely used composite material in Europe for upgrading the seismic resistance of existing reinforced concrete (RC) frame buildings. One way of provid-ing seismic resistance upgrading is through the application of the proposed FRCM system on existing masonry infill walls to increase their stiffness and integrity. To examine the effectiveness of this application, the bond characteristics achieved between (a) the matrix and the masonry substrate and (b) the fabric and the matrix need to be determined. A series of experiments including 23 material performance tests, 15 direct tensile tests of dry fabric and composites, and 30 shear bond tests between the matrix and brick masonry, were carried out to investigate the fabric-to-matrix and matrix-to-substrate bond behaviour. In addition, different arrangements of extruded polystyrene (XPS) plates were applied to the FRCM to test the shear bond capacity of this insulation system when used on a large-scale wall.


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