Performance of hybrid carbon and basalt FRP sheets in strengthening concrete beams in flexure

Choobbor, Sahar Samir; Hawileh, Rami A.; Abu-Obeidah, Adi; Abdalla, Jamal A.

doi:10.1016/j.compstruct.2019.111337

Cited by 83 publications

(22 citation statements)

References 35 publications

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“…Regarding the theoretical model analysis of the strength of concrete bridge decks strengthened with NSM FRP, calculation methods for the flexural and shear capacity should be established considering the compressive membrane action [153]. [23,27,148,[154][155][156][157][158][159].…”

Section: Near-surface Mounted Frp Nsm Frp Is An Improved Version Of the Traditional Eb Frp Methodsmentioning

confidence: 99%

“…Compared with unreinforced members, the loading capacity of the concrete beams strengthened with FRP CFRP sheets was higher, but the ductility was lower [112], and the main failure mode was peeling failure of the concrete cover near the FRP sheets. Choobbor et al [155] applied CFRP/ BFRP composite sheets to nine reinforced concrete beams and investigated the flexural performance of the beams. ey found that the ultimate capacity of the reinforced members increased by 66%-75% compared with that of the unreinforced beam.…”

Section: Properties Of the Reinforced Membersmentioning

confidence: 99%

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Review of Experimental Studies on Application of FRP for Strengthening of Bridge Structures

Yuan

2020

Advances in Materials Science and Engineering

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In recent years, fiber-reinforced polymer (FRP) composites have been widely used as a new type of high-performance material in concrete structures. FRP composites have the advantages of high strength, light weight, and corrosion resistance. Based on existing studies in the literature, this paper reviews the development and applications of FRP materials for the strengthening and rehabilitation of bridge structures. The types and properties of FRP composites are summarized, and the applications and development of FRP sheets, FRP bars, FRP grids, and prestressed FRP tendons for bridge structures are discussed. Different types of FRP composites result in different failure characteristics and bearing capacities. Moreover, this paper covers the FRP strengthening methods and the response properties of the flexural performance, bonding performance, and ductility. Significant conclusions regarding the strengthening/repair of bridge structures with FRP composites are presented. The review details the current state of knowledge and research on strengthening bridge structures with FRP composites and is helpful for better understanding and establishing design criteria.

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Section: Near-surface Mounted Frp Nsm Frp Is An Improved Version Of the Traditional Eb Frp Methodsmentioning

confidence: 99%

Section: Properties Of the Reinforced Membersmentioning

confidence: 99%

Review of Experimental Studies on Application of FRP for Strengthening of Bridge Structures

Yuan

2020

Advances in Materials Science and Engineering

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“…Basalt fabric-reinforced concrete shows crushing failure in the compression zone after tensile breakages of basalt fiber [ 47 ]. Moreover, carbon and basalt fabric/epoxy-reinforced concrete beams show better load-carrying capacity and ductility due to stiff carbon and flexible basalt fibers in the neat concrete beams [ 48 ]. It was claimed that the addition of short basalt fiber in concrete improved the flexural strength, splitting tensile strength and crack resistance as well as ductility [ 49 ].…”

Section: Introductionmentioning

confidence: 99%

Off-Axis Flexural Properties of Multiaxis 3D Basalt Fiber Preform/Cementitious Concretes: Experimental Study

Özdemir

Bilişik

2021

Materials

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Multiaxis three-dimensional (3D) continuous basalt fiber/cementitious concretes were manufactured. The novelty of the study was that the non-interlace preform structures were multiaxially created by placing all continious filamentary bundles in the in-plane direction of the preform via developed flat winding-molding method to improve the fracture toughness of the concrete composite. Principle and off-axis flexural properties of multiaxis three-dimensional (3D) continuous basalt fiber/cementitious concretes were experimentally studied. It was identified that the principle and off-axis flexural load-bearing, flexural strength and the toughness properties of the multiaxis 3D basalt concrete were extraordinarily affected by the continuous basalt filament bundle orientations and placement in the pristine concrete. The principle and off-axis flexural strength and energy absorption performance of the uniaxial (B-1D-(0°)), biaxial ((B-2D-(0°), B-2D-(90°) and B-2D-(+45°)), and multiaxial (B-4D-(0°), B-4D-(+45°) and B-4D-(−45°)) concrete composites were considerably greater compared to those of pristine concrete. Fractured four directional basalt concretes had regional breakages of the brittle cementitious matrix and broom-like damage features on the filaments, fiber-matrix debonding, intrafilament bundle splitting, and minor filament entanglement. Multiaxis 3D basalt concrete, particularly in the B-4D structure, controlled the crack phenomena and it was recognized as a more damage-tolerant material than the neat concrete.

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“…Furthermore, fibre reinforced polymers (FRP) may be used to repair structural elements that suffered total or partial collapses [10]. Choobbor et al [11] evaluated the bending performance of reinforced concrete beams strengthened with hybrid carbon and basalt fibre reinforced polymer (CFRP/BFRP) composite sheets. Nine beams were tested with different combinations of CFRP and BFRP sheets and the test results indicated clear improvements in the load-carrying capacity and ductility of the strengthened specimens.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable

Cunha

Oliveira

Brito

et al. 2021

Frattura Ed Integrità Strutturale

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The use of fibre reinforced polymers (FRP) for increasing the strength of RC structures became a usual method. FRP presents easy application and demands low space and provide significant strength increase. Usually, the decision for FRP use is made in terms of applied loads and deflections. However, such quantities can vary significantly depending on the characteristics of the structural element e.g. span, effective depth and concrete resistance. Therefore, this paper aims to present an alternative control variable to analyse the behaviour of RC beams repaired with glass fibre reinforced polymer (GFRP), called damage. Such damage variable accounts for concrete cracking and it was experimentally measured before and after the application of GFRP. Note that the application of GFRP increased the ultimate load for all repaired beams. The damage values of such beams also increased when collapse was reached. Furthermore, it was observed that the collapse mechanism shifted to shear and did not occurred the failure of the GFRP.

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Performance of hybrid carbon and basalt FRP sheets in strengthening concrete beams in flexure

Cited by 83 publications

References 35 publications

Review of Experimental Studies on Application of FRP for Strengthening of Bridge Structures

Review of Experimental Studies on Application of FRP for Strengthening of Bridge Structures

Off-Axis Flexural Properties of Multiaxis 3D Basalt Fiber Preform/Cementitious Concretes: Experimental Study

Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable

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