Reinforcement of historic wall panels with thermo-insulating fiber-reinforced plaster

Antonio Borri, Marco Corradi, Giulio Castori, Romina Sisti, Adelaja Israel Osofero

Research output: Chapter in Book/Report/Conference proceedingPublished conference contribution


To address the problem regarding the seismic vulnerability of old unreinforced masonry (URM) constructions, an experimental program was undertaken to study the effectiveness of Glass Fiber-Reinforced Plastics (GFRP) systems as a seismic retrofit intervention for laterally loaded URM walls that are prone to shear failure during earthquakes. This paper presents the initial results of a series of shear tests carried out on wall panels made of solid bricks reinforced with an innovative technique by means of jacketing with GFRP mesh inserted into a thermo-insulating plaster. External jacketing was made of low-strength lime based plasters. Tests were carried out in laboratory according to specification of ASTM 519-02 (Diagonal Tension Test Method). The test results enabled the determination of the shear modulus and strength of the brickwork masonry before and after the application of the GFRP reinforcement. The panels strengthened with the GFRP exhibited a significant improvement in lateral load-carrying capacity when compared to the control panels.
Original languageEnglish
Title of host publicationTwelfth North American Masonry Conference 2015
PublisherThe Masonry Society
Number of pages11
ISBN (Print)9781510813946
Publication statusPublished - May 2015
Event12th North American Masonry Conference - Denver, United States
Duration: 17 May 201520 May 2015


Conference12th North American Masonry Conference
Country/TerritoryUnited States


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