Experimental investigation on masonry arches strengthened with PBO-FRCM composite

Alecci, Valerio; Misseri, Giulia; Rovero, Luisa; Stipo, Gianfranco; Stefano, Mario De; Feo, Luciano; Luciano, Raimondo

doi:10.1016/j.compositesb.2016.05.063

Cited by 87 publications

(23 citation statements)

References 45 publications

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“…By analyzing the available publications, it can be noted that existing research are mainly based on systems FRP [4][5][6][7][8][9][10]. The FRCM strengthening, which include Ruredil X Mesh Gold system, is significantly less common [1][2][3]. Some publications raise issues related to the research of strength and deformation of beams reinforced by this FRCM system [11,12], but not include the effect of the initial beam load.…”

Section: The Analysis Of Existing Research and Studiesmentioning

confidence: 99%

Effectivenes of Strengthening Loaded RC Beams with FRCM System

Blikharskyy

Brózda

Selejdak

2018

Archives of Civil Engineering

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The composite materials as FRP (Fiber Reinforced Polymers), which are characterized by benefits resulting from the combination of high strength reinforcement (as carbon, glass, steel or aramid fibers) with synthetic matrix are increasingly used to reinforce existing structures. Reinforcing System as FRCM (Fibre Reinforced Cementitious Matrix), which includes, among others, Ruredil X Mesh Gold System, is much less commonly used. However, the uniform and practical methods for calculating composite reinforced structures are not determined. Especially when considering the real conditions of structure exploitation, which requires further research in this field. In the paper the initial loading level influence on the efficiency of reinforced concrete beams strengthen using system Ruredil X Mesh Gold was investigated.

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Section: The Analysis Of Existing Research and Studiesmentioning

confidence: 99%

Effectivenes of Strengthening Loaded RC Beams with FRCM System

Blikharskyy

Brózda

Selejdak

2018

Archives of Civil Engineering

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“…Typically, masonry arch bridges need restoration and should be effectively strengthened while maintaining historical value. Traditional techniques of strengthening (steel bars, stirrups, steel profiles, injecting cementitious mortar, reinforced concrete hoods, and introducing ties at the arch impost) are being abandoned due to the aesthetic incompatibility and extra self-weight and rigidity that these techniques could add to the structure [36]. Recently, composite materials have been used instead of traditional techniques, because they are considered innovative (carbon fiber reinforced polymer, glass reinforced polymer, steel rod, steel-reinforced grout, basalt textile-reinforced mortar, or other fiber materials) [37][38][39][40][41][42].…”

Section: Introductionmentioning

confidence: 99%

Study on the Restoration of a Masonry Arch Viaduct: Numerical Analysis and Lab Tests

et al. 2020

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This article presents an analysis of the load-carrying capacity of a historic masonry arch viaduct. The vault was made of bricks and lime-cement mortar. It was built in 1886 and, therefore, its historical character had to be included in the restoration project. The main task of the restoration was to bring the viaduct to a technical condition corresponding to the current requirements to allow normal (or limited) service. The strength of the brickwork and joints (mortar) was examined experimentally in the laboratory and on the viaduct. This paper presents numerical calculations for the masonry viaduct that were performed using two programs based on the finite element method. As the project documentation was unknown, two-and three-hinged models of the masonry arch were analyzed. The axial forces, shear forces, bending moments, displacement, normal stresses, and shear stresses generated from the numerical analysis have been discussed. The conditions of the load capacity of the arch viaduct due to compression and shearing have been met. The safety of a masonry arch of the viaduct was determined. Finally, the restoration scope of the masonry viaduct was proposed.

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“…Traditional strengthening techniques (i.e., steel profiles or reinforced concrete hoods), which revealed many drawbacks, have been replaced by advanced strengthening solutions, based on the use of polymeric-based composite materials (fiber reinforced polymer, FRP). Innovative composite materials constituted by a fabric embedded in a cement-based matrix (FRCM, fabric reinforced cementitious mortar) are being studied [12][13][14][15][16][17][18] as an alternative to FRPs [19][20][21][22][23], mainly to strengthen historic buildings due to their high compatibility with masonry substrate in terms of resistance to high temperature and vapor permeability. Recently, a natural lime mortar matrix has been proposed as alternative to the cement-based matrix [24] when historic compatibility with the substrate is required, as in case of restorations of monumental buildings.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, the paper deals with an experimental campaign on brick masonry arches strengthened at the extrados with Basalt-FRLM. The structural behavior of Basalt-FRLM-strengthened arches is analyzed and compared with the structural behavior of un-strengthened arches and arches strengthened with FRP and FRCM composites tested in a previous step of this research [17,18,25]. The purpose of this research is to provide the first experimental evaluation of the structural effectiveness of lime matrix composite materials for strengthening masonry structures, and to compare it with the effectiveness which can be achieved with more traditional composite materials such as FRPs and FRCMs.…”

Section: Introductionmentioning

confidence: 99%

Strengthening Masonry Arches with Lime-Based Mortar Composite

et al. 2017

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In recent decades, many strengthening interventions on masonry elements were performed by using fiber reinforced polymers (FRPs). These advanced materials proved to be effective to increase the load-carrying capacity of masonry elements and to improve their structural behavior, avoiding the most critical failure modes. Despite the advantages of this technique compared to more traditional methods, FRP systems have disadvantages related to their low resistance to high temperatures, impossibility of application on wet surfaces, low permeability, and poor compatibility with masonry supports. Therefore, composite materials made of a fiber textile embedded in an inorganic matrix were recently proposed as alternatives to FRPs for strengthening historic masonry constructions. These composite materials are easier to install, have higher resistance to high temperatures, and permit higher vapor permeability than FRPs. The inorganic matrix is frequently a cement-based mortar, and the composite materials made of a fiber textile embedded in a cement-based mortar are usually identified as FRCM (fabric reinforced cementitious matrix) composites. More recently, the use of natural lime mortar as an inorganic matrix has been proposed as an alternative to cement-based mortars when historic compatibility with the substrate is strictly required, as in case of restoration of historic buildings. In this paper, the effectiveness of a fabric made of basalt fibers embedded in lime mortar matrix (Basalt-FRLM) for the strengthening of masonry arches is investigated. An experimental investigation was performed on 1:2 scaled brick masonry arches strengthened at the extrados with a layer of Basalt-FRLM and tested under vertical load. The results obtained are compared with previous results obtained by the authors by testing masonry arches strengthened at their extrados with FRCM and FRP composites. This investigation highlights the effectiveness of Basalt-FRLM in increasing load-currying and the displacement capacities of masonry arches. The Basalt-FRLM-strengthened arch exhibited higher displacement capacity when compared to arches strengthened with polymeric and cementitious matrix composites.

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Experimental investigation on masonry arches strengthened with PBO-FRCM composite

Cited by 87 publications

References 45 publications

Effectivenes of Strengthening Loaded RC Beams with FRCM System

Effectivenes of Strengthening Loaded RC Beams with FRCM System

Study on the Restoration of a Masonry Arch Viaduct: Numerical Analysis and Lab Tests

Strengthening Masonry Arches with Lime-Based Mortar Composite

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