Textile-reinforced mortar (TRM) versus fibre-reinforced polymers (FRP) in flexural strengthening of RC beams

Raoof, Saad M.; Koutas, Lampros N.; Bournas, Dionysios A.

doi:10.1016/j.conbuildmat.2017.05.023

Cited by 180 publications

(88 citation statements)

References 28 publications

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“…The specific parameters of the beams are shown in Tab. 2 It could be noted from the load-deflection curves that the differences between the simulated values and test values were small, suggesting the high accuracy of the finite element model. The comparison results of the ultimate load values of the test beams and simulated beams are shown in Tab.…”

Section: Comparison Between Simulated Values and Test Valuesmentioning

confidence: 93%

“…They developed W a gradient prestressing technique without end anchorage plates and investigating confinement technique using nonlaminated thermoplastic CFRP straps. Raoof et al [2] compared the flexural properties of Textile-reinforced mortar (TRM) versus fibre-reinforced polymers (FRP) and found that FRP was more superior in improving the flexural bearing capacity of reinforced concrete beams than TRM through experiments. To analyze the effect of CFRP in enhancing the carrying capacity of beams during bending, Khelifa et al [3] developed a numerical program to simulate the bending behaviors of beams.…”

Section: Introductionmentioning

confidence: 99%

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Stress performance of embedded carbon fiber reinforced plastics plate consolidated reinforced concrete structure

Zhu

2018

Frattura Ed Integrità Strutturale

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With the development of the building industry, various novel building materials have emerged. Modern buildings requires higher on performance of building materials, and the performance of old buildings has not been able to keep up the pace of the times. Extending the service time of old buildings by repairing and reinforcing is inevitable. In this study, 10 reinforced concrete beams including 2 ordinary reinforced concrete beams and 8 carbon fiber reinforced plastics (CFRP) plate reinforced test beams were manufactured. Three-dimensional finite element model was established using finite element software to simulate and compare the stress performance of the strengthening beams with different number of CFRP plate, size, number of groove and shear span ratio. The results demonstrated that the ultimate carrying capacity of the embedded CFRP plate reinforced beams was obviously superior to that of the ordinary reinforced concrete beams; two plates and two grooves were appropriate; the larger the shear span ratio, the better the bearing performance and the smaller the deformation. CFRP plate consolidated reinforced concrete can effectively stabilize buildings which need repairing and reinforcement.

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Section: Comparison Between Simulated Values and Test Valuesmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Stress performance of embedded carbon fiber reinforced plastics plate consolidated reinforced concrete structure

Zhu

2018

Frattura Ed Integrità Strutturale

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“…About 55% enhancement was found when using onelayer of coated textile carbon fiber instead of one-layer of the dry textile carbon fiber. (C) For both the strengthening systems TRM and FRP, the postyielding stiffness and cracks of strengthened beams was greatly enhanced as compared with nonstrengthened beam by about (72% and 1298%), respectively [12].…”

Section: Raoof Et Al (2017)mentioning

confidence: 94%

Flexural Behavior of Concrete Members Reinforced With 3D-Textile Fibers-A Review

Abdulghani

Ali

2019

NJES

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Normal concrete is weak against tensile strength, has low ductility and also insignificant resistance to cracking. The addition of diverse types of fibers at specific proportions can enhance the mechanical properties as well as the durability. Discrete fiber, which is commonly used, have many disadvantages such as balling the fiber, random distribution, and limitation of the used Vf ratio. Based on this vision, a new technique was discovered, enhancing concrete by textile-fiber to avoid all the problems mentioned above. This paper presents all important consequence and conclusions obtained from previous studies on how to strengthen concrete with two-dimensional and three-dimensional textile-fibers, and focuses on the flexural behavior of concrete members. The results indicate that there was an improvement in flexural strength, deformation capacity, and toughness with different load conditions when using different types of textile-fiber. It was observed that the effect of textile-fibers would increase when this fiber was coated by epoxy. In TRC system, there is a significant impact on the number of textile-fiber layers used.

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“…One example of such cement-based strengthening technique is Textile-reinforced mortar strengthening (TRM) which consists of mortar as the matrix and large mesh size textiles as the strengthening materials. Raoof et al (2017) defined TRM as "a composite comprising high-strength fibres made of carbon, basalt or glass in form of textiles embedded in inorganic materials such as cement-based mortars. "…”

Section: Introductionmentioning

confidence: 99%

Textile-reinforced mortar external strengthening of corroded reinforced concrete beams

Moy¹,

Oluwadahunsi²

2019

Sustainable Construction Materials and Technologies (SCMT)

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The need for reliable material techniques for the restoration of corrosion-damaged reinforced concrete (RC) elements cannot be over-emphasised, especially when considering the sustainability aspects of reinforced concrete structures. This investigation examines the application of basalt textile-reinforced mortar for external strengthening of corroded RC beams in flexure. In that regard, a set of reinforced concrete beams subjected to accelerated corrosion to 10% and 20% mass loss of the main steel bars at mid-span and were strengthened using TRM. In total, 7 beams were tested under four-point bending for the following conditions: 1 control, 2 corroded and 4 strengthened. Two strengthening schemes were single ply TRM of equivalent surface area. The results show that corrosion had detrimental effects on load-carrying capacity, yield strength, as well as ductility of corroded beams. Strengthening schemes restored the load capacity of the 10% corroded beams within a range of 105% to 112% of control load capacity. Recovery of the load carrying capacity was not achieved for the 20% corroded beams. All the strengthened specimens ultimately failed by fibre reinforcement rupture, thus indicating full utilisation of composite action of the TRM.

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Textile-reinforced mortar (TRM) versus fibre-reinforced polymers (FRP) in flexural strengthening of RC beams

Cited by 180 publications

References 28 publications

Stress performance of embedded carbon fiber reinforced plastics plate consolidated reinforced concrete structure

Stress performance of embedded carbon fiber reinforced plastics plate consolidated reinforced concrete structure

Flexural Behavior of Concrete Members Reinforced With 3D-Textile Fibers-A Review

Textile-reinforced mortar external strengthening of corroded reinforced concrete beams

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