External Jacketing of Unreinforced Historical Masonry Piers with Open-Grid Basalt-Reinforced Mortar

Mezrea, Pelin E.; Yilmaz, Irem A.; Ispir, Medine; Binbir, Ergün; Bal, İhsan Engin; İlki, Alper

doi:10.1061/(asce)cc.1943-5614.0000770

Cited by 54 publications

(18 citation statements)

References 21 publications

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“…Basalt fibres may be used separately as microfibers, successfully fulfilling the function of a reinforcing agent in composite materials based on inorganic matrices [4,5,6,7], or as a reinforcement element in the form of a surface fabric, the use of which appears to be very effective [1,8]. In addition, basalt fibres arranged in the form of a surface fabric have been successfully used in the past, for example in reinforcing concrete beams [9], historical pillars [10] or surface panels [1,11,12]. In all of the mentioned cases, basalt fibres, whether as single fibres, fibre bundles or fibre lattices, function as a reinforcement element in a matrix made of concrete, mortar or other material.…”

Section: Introductionmentioning

confidence: 99%

Fire-Resistant Sandwich-Structured Composite Material Based on Alternative Materials and Its Physical and Mechanical Properties

et al. 2019

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The development of composite materials from alternative raw materials, and the design of their properties for the intended purpose is an integral part of the rational management of raw materials and waste recycling. The submitted paper comprehensively assesses the physical and mechanical properties of sandwich composite material made from particles of winter rapeseed stalks, geopolymer and reinforcing basalt lattices. The developed composite panel is designed for use as a filler in constructions (building or building joinery). The observed properties were: bending characteristics, internal bonding, thermal conductivity coefficient and combustion characteristics. The results showed that the density of the particleboard has a significant effect on the resulting mechanical properties of the entire sandwich panel. On the contrary, the density of the second layer of the sandwich panel, geopolymer, did not have the same influence on its mechanical properties as the density of the particleboard. The basalt fibre reinforcement lattice positively affected the mechanical properties of sandwich composites only if it was sufficiently embedded in the structure of the particle board. All of the manufactured sandwich composites resisted flame for more than 13 min and the fire resistance was positively affected by the density of the geopolymer layer.

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Section: Introductionmentioning

confidence: 99%

Fire-Resistant Sandwich-Structured Composite Material Based on Alternative Materials and Its Physical and Mechanical Properties

et al. 2019

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“…Studies and research results evidenced the good mechanical properties of FRCM/SRG strengthened masonry [4][5][6][7][8][9] and concrete structures [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 94%

Analysis of the Behavior of FRCM Confined Clay Brick Masonry Columns

Ombres

Verre

2020

Fibers

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The behavior of FRCM (Fabric Reinforced Cementitious Mortar) confined clay brick masonry columns is analyzed in this paper. The results of an experimental investigation conducted on small-scale columns made by clay brick masonry confined with steel-FRCM (or Steel Reinforced Grout, SRG), PBO (poly-paraphenylene-benzo-bisoxazole) FRCM and basalt-FRCM, tested under monotonic compressive load, are described and discussed. Tests were conducted on thirteen prismatic columns; eleven columns (two unconfined and nine confined) were tested under concentric load while an eccentric load was applied on two confined columns. For each confinement system, the parameters investigated were the 'confinement ratio', the 'load eccentricity' and the 'overlap configuration of the fiber fabrics'. FRCM confinement improved the structural response of masonry columns in terms of ultimate strength, ultimate strain and ductility. Some models from the literature were also examined to evaluate their applicability in predicting the axial capacity of confined columns. axially loaded columns strength and ductility values are increasing with the confinement ratio while they are decreasing with the increase of the load eccentricity. In addition, a FEM procedure adopted to perform a numerical analysis furnished satisfactory predictions of the axial capacity of confined columns [23].An experimental and analytical study on masonry columns confined with carbon fiber fabrics in polymer-modified cement binder has been conducted by Krevaikas [16]. Short masonry columns have been tested under concentric loading varying the number of confining layers, the cross-section aspect ratio and the corner radii. Tests results have been used to develop simple models (both linear and nonlinear) for the prediction of the ultimate strength and strain of confined columns.The influence of different brick configurations on the behavior of PBO-FRCM confined brick masonry columns was investigated by Carloni et al. [20] through the results of tests conducted on full-scale and scaled bricks columns. The parameters investigated were also the role of the mortar joints and the arch effect across the section of the columns due to the confinement.Cascardi et al. [21] used three different inorganic matrices for confining poor quality masonry columns tested under axial load. The experimental results confirmed that the FRCM confinement may produce a significant improvement of the mechanical properties of the masonry columns when a proper grade of mortar matrix is used.The compressive behavior of calcarenite masonry columns confined with different FRCM systems was analyzed by Minafò and La Mendola [22]. The confinement system made with glass fiber fabric was changed on the basis of the mechanical properties of the mortar. The results of tests evidenced the role of the mortar grade on the strength, strain and ductility of confined columns. An analytical model, found based on an iterative procedure, was also proposed to predict the overall compressive behavior of FRCM confined masonry c...

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“…Both composite systems have high resistance to fire, elevated temperature and UV radiation; they are compatible with the concrete or masonry substrate and have unvarying workability temperature (between 4 and 40 • C) (Nanni, 2012). Results of recent studies and research give evidence of the flexural and shear capacity increase of FRCM/ SRG strengthened masonry (Papanicolaou et al, 2007(Papanicolaou et al, , 2008Babaeidarabad et al, 2014;de Felice et al, 2014;Mezrea et al, 2016;Santandrea et al, 2017b) and concrete structures (Ombres, 2011(Ombres, , 2014(Ombres, , 2015aD'Ambrisi and Focacci, 2012;Loreto et al, 2014;Carloni et al, 2016;Sneed et al, 2016;Tetta et al, 2016;Thermou et al, 2016;Verre, 2018a, 2019). The performances of masonry columns confined with FRCM/SRG have also been analyzed by experimental investigations (Carloni et al, 2015;Ombres, 2015b;Cascardi et al, 2017Cascardi et al, , 2018aFossetti and Minafò, 2017;Maddaloni et al, 2017;Santandrea et al, 2017a;Sneed et al, 2017;Minafò and La Mendola, 2018;; obtained results evidenced the effectiveness of the confining systems with an increase both in axial load capacity and ductility.…”

Section: Introductionmentioning

confidence: 97%

“…Results of tests demonstrated a significant increase of both strength and ductility in confined column with respect to unconfined ones. Mezrea et al (2016) tested historical masonry pier columns confined with open grid basalt-reinforced mortar. Experiments showed that confined columns provided a small compressive strength gain with respect to the unconfined ones.…”

Section: Introductionmentioning

confidence: 99%

Numerical Modeling Approaches of FRCMs/SRG Confined Masonry Columns

Ombres

Verre

2019

Front. Built Environ.

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The Fabric Reinforced Cementitious Matrices (FRCMs) and Steel Reinforced Grout (SRG) are a promising strengthening solution for existing masonry since inorganic matrix is considerably compatible with historical substrates. The present paper is focused on a Finite Element (FE) analysis of masonry columns confined with FRCM composites developed by Abaqus-code. The masonry columns were modeled using a macro model approach. The model was performed by using the following functions Concrete Damage Plasticity (CDP) and the Plastic (P) in order to describe the constitutive laws of material for masonry columns and external reinforcement, respectively. Typical failures of FRCM-systems are slippage of the fibers within the embedding matrix, instead for SRG-systems are detachment of the composite strip at the fabric-matrix interface and fiber rupture. In addition, perfect bond was considered for the interaction between the masonry column and in the overlap zone the bond slip law was modeled on the base of the failure mode. Results of an experimental investigation on FRCM and SRG clay brick masonry columns are used to calibrate the numerical model.

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External Jacketing of Unreinforced Historical Masonry Piers with Open-Grid Basalt-Reinforced Mortar

Cited by 54 publications

References 21 publications

Fire-Resistant Sandwich-Structured Composite Material Based on Alternative Materials and Its Physical and Mechanical Properties

Fire-Resistant Sandwich-Structured Composite Material Based on Alternative Materials and Its Physical and Mechanical Properties

Analysis of the Behavior of FRCM Confined Clay Brick Masonry Columns

Numerical Modeling Approaches of FRCMs/SRG Confined Masonry Columns

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