Material and bonding characteristics for dimensioning and modelling of textile reinforced concrete (TRC) elements

Banholzer, B.; Brockmann, Tanja; Brameshuber, Wolfgang

doi:10.1617/s11527-006-9140-x

Cited by 120 publications

(54 citation statements)

References 9 publications

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“…The observed telescopic failure of the fibre bundles is a result of the stress transfer mechanism between wires and mortar, causing a non-uniform stress field in the cross section of the textile. As it has already been observed on textile reinforced concrete under tensile loading [26], this is due to the fact that the external wires, in contact with the mortar, experience higher stresses (and therefore break first) than the internal ones, because the bond between mortar and wire is higher than that between wire and wire. Despite the variability in terms of force-slip relationship was relatively wide (Fig.…”

Section: Experimental Results and Application Of The Qualification Prmentioning

confidence: 60%

A qualification method for externally bonded Fibre Reinforced Cementitious Matrix (FRCM) strengthening systems

Ascione

Felice

Santis

2015

Composites Part B: Engineering

191

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Section: Experimental Results and Application Of The Qualification Prmentioning

confidence: 60%

A qualification method for externally bonded Fibre Reinforced Cementitious Matrix (FRCM) strengthening systems

Ascione

Felice

Santis

2015

Composites Part B: Engineering

191

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“…This telescopic mode of pull-out [31] is influenced by the cement penetrability, the geometry of the reinforcement, the presence of a coating and the level of friction between the fibers in each yarn. The last can vary with the different qualities of the fibers.…”

Section: Pbo-g-frcmmentioning

confidence: 99%

Mechanical properties and debonding strength of Fabric Reinforced Cementitious Matrix (FRCM) systems for masonry strengthening

Carozzi

Poggi

2015

Composites Part B: Engineering

270

136

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a b s t r a c tFabric Reinforced Cementitious Matrix (FRCM) composites are advanced cement-based materials often used for strengthening masonry or concrete structures. The system is usually composed of a dry grid of fibers embedded in a cementitious matrix enriched with short fibers.An important parameter for designing the structural reinforcement is the tensile load-bearing capacity of FRCM composites. For their heterogeneity, FRCM composites show an interesting mechanical behavior in tension, that depends on the properties of the components and of the bonding strength. These values could be estimated with mechanical models but must be validated experimentally by means of proper testing campaigns.In this work several FRCM materials made with different fiber grids were investigated. Four different types of fibers were considered: polyparaphenylene benzobisoxazole (PBO), carbon (C), glass (G) and PBO and glass (PBO-G) fibers and three different types of cementitious mortars.The behavior of FRCM under tension and the influence of the bond properties between the dry textile and the inorganic matrix are studied developing an extensive experimental program that included the characterization both of the materials components and of the composites. A series of push-pull double lap tests and pull-off tests were performed to determine the bonding properties of FRCM composites applied to masonry structures.The paper presents results and considerations that can provide background data for future recommendations for the use of FRCM systems in the rehabilitation of elements.

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“…An alternative solution should be to replace of organic by inorganic mortar. Di erent solutions to design cement based strengthening systems for concrete structures are proposed; among these the Textile Reinforced Concrete (TRC), the Textile Reinforced Mortar (TRM), the Fiber Reinforced Concrete (FRC), the Mineral Based Composites (MBC) and the Fiber Reinforced Cementitious Mortar (FRCM) [20][21][22][23][24][25][26][27][28]. The reinforcement of the structural elements by means of FRCM, unlike FRP, is based on the use of a fabric meshes with dry ber strands disposed orthogonally and bonded to the support by an inorganic matrix mixed to the water so as to be suitable under the chemical, physical and mechanical point of view with support, especially if we refer to the masonry and concrete structures.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of tests for the evaluation of the performance of the reinforced concrete slabs strengthening by FRCM

Anania

Badalà

D’Agata

2016

Curved and Layered Structures

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Abstract:In this work the attention is focused to the numerical simulation of the experimental bending tests carried out on a total of six reinforced concrete r.c. plates the latter aimed to provide a basic understanding of the its performance when strengthened by Fiber Reinforced Cementitius Matrix (FRCM) Composites. Three of those were used as control specimens. The numerical simulation was carried out by LUSAS software. A good correlation between the FE results and data obtained from the test, both in the load-deformation behavior and the failure load was highlighted. This permits to prove that applied strengthening system gives back an enhancement 2.5 times greater in respect of the unreinforced case. A greater energy dissipation ability and a residual load-bearing capacity makes the proposed system very useful in the retro tting as well as in the case of strengthening of bridge structures. Based on the validation of the FE results in bending, the numerical analysis was also extended to characterize the behavior of this strengthening system in tensile.

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Material and bonding characteristics for dimensioning and modelling of textile reinforced concrete (TRC) elements

Cited by 120 publications

References 9 publications

A qualification method for externally bonded Fibre Reinforced Cementitious Matrix (FRCM) strengthening systems

A qualification method for externally bonded Fibre Reinforced Cementitious Matrix (FRCM) strengthening systems

Mechanical properties and debonding strength of Fabric Reinforced Cementitious Matrix (FRCM) systems for masonry strengthening

Numerical simulation of tests for the evaluation of the performance of the reinforced concrete slabs strengthening by FRCM

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