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Journal articles on the topic 'Use of CFRP'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Pawlak, Aleksandra M., Tomasz Górny, Łukasz Dopierała, and Piotr Paczos. "The Use of CFRP for Structural Reinforcement—Literature Review." Metals 12, no. 9 (2022): 1470. http://dx.doi.org/10.3390/met12091470.

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Carbon fiber reinforced polymer (CFRP) composites are increasingly being used to strengthen structures and to retrofit existing structures. CFRP composites are used in various industries: construction, automotive, and many others. This literature review has shown that CFRP composites find numerous practical applications. Improving structures by reinforcing them with CFRP composite is an innovative approach in design. This review aims to explore the current state of the art in the types of structures that can be reinforced with CFRP, and modifications to the CFRP composite as an additional aspe

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Okada, Takumi, J. H. Quan, Naoya Tsuchikura, et al. "Cost Cut with High Impact Value of Sandwich Structure with Inexpensive ABS Core between High Strength CFRP Laminate Plies." Advanced Materials Research 922 (May 2014): 563–67. http://dx.doi.org/10.4028/www.scientific.net/amr.922.563.

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Sandwich structural composites (CFRP/ABS/CFRP) of inexpensive acrylonitrile butadiene styrene (ABS) cores (2.0 mm thickness) between carbon fiber reinforced epoxy (CFRP) laminate plies (2.5 mm thickness) were suggested and prepared, since the materials cost of ABS resin was about 8% that of CFRP. Although Young’s modulus of CFRP/ABS/ CFRP is slightly smaller than that of CFRP, Charpy impact value (auc) of the CFRP/ABS/CFRP approximately corresponded to that of CFRP composite. Furthermore, applying homogeneous low voltage electron beam irradiation (HLEBI) to both side surfaces improved theaucof

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3

Ashad, Hanafi, Rezki Muhammad Suharto Hartawan Nurdin, Muhammad Chairus Nizar, Toni Utina, and Muhammad Syarif. "Sifat Sifat Mekanik Beton dengan Menggunakan Fiber Reinforced Polymer (FRP)." Jurnal Talenta Sipil 7, no. 2 (2024): 540. http://dx.doi.org/10.33087/talentasipil.v7i2.538.

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This study investigates the impact of Carbon Fiber Reinforced Polymer (CFRP) reinforcement on the mechanical properties of concrete, by testing the compressive strength, tensile strength, flexural strength, and shear strength of concrete with and without CFRP reinforcement. The results of the study show a significant improvement in all aspects after the application of CFRP. Specifically, the compressive strength of concrete consistently increases after CFRP reinforcement, with CFRP 2 Layer reinforcement showing the highest increase. Similarly, the tensile strength and flexural strength of conc

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Wang, Jian Hua. "The Study on Carbon Fiber Reinforced Concrete Beams Based on Finite Element Analysis." Advanced Materials Research 430-432 (January 2012): 331–36. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.331.

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Carbon fiber-reinforced polymer (CFRP) sheets have recently become popular for use as repair or rehabilitation material for deteriorated carbon fiber reinforced concrete structures. Carbon fiber reinforced concrete beams were analyzed by finite element software ANASYS. Through the finite element analysis, the results showed that using bonded CFRP to strengthen R. C. beams can significantly increase their load carrying capacity. However, the beams with prestressed CFRP can withstand larger ultimate loads than beams with bonded CFRP. Using bonded CFRP to strengthen R. C. beams can obviously redu

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Ayush, R.K., K. Sujith, Patil Abhishek, H.R. Varshith, and A. Hosur Vinayak. "Experimental Investigation on Use of Basalt as Alternative Reinforcement in Two Way Slab – A Review." Journal of Building Construction 6, no. 1 (2024): 24–28. https://doi.org/10.5281/zenodo.10841802.

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<em>This study assesses the impact of basalt Fiber -reinforced concrete on exterior beam-column joint performance under cyclic loading. Basalt Fiber, known for superior efficiency, was used, with varied percentages (0.75%, 1%, and 1.25%) in high-performance M60 grade concrete. Mechanical tests evaluated properties, while ductile detailing enhanced energy absorption. Findings show improved joint performance, reduced crack sizes with Fiber inclusion, and increased strength under cyclic loading. This study researches huge scope two-way substantial chunks built up with Fiber-Supported Polymer (FRP

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Moon, Jae Sang, Da Young Kim, Myeong Seop Ko, and Changhyuk Kim. "Performance of Reinforced Concrete Beams Strengthened by Bidirectional Carbon-Fiber-Reinforced Polymers Based on Numerical Models." Polymers 15, no. 4 (2023): 1012. http://dx.doi.org/10.3390/polym15041012.

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The use of carbon-fiber-reinforced polymers (CFRPs) for the repair and rehabilitation of reinforced concrete (RC) structures has been receiving a lot of attention. Specifically, the shear strengthening of RC members based on CFRP materials has been treated as an effective and efficient strengthening method. Previous research projects focused on the shear strengthening of RC members with unidirectional CFRP strips. Although the effectiveness of a bidirectional CFRP layout compared to a unidirectional CFRP layout was discussed in several studies, these studies only investigated the issue based o

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7

Husain, Husain M., Nazar K. Al-Oukaili, and DAWLAT D. ALI. "EXPERIMENTAL INVESTIGATION OF REINFORCED CONCRETE FLEXURAL BEAMS STRENGTHENED OR REPAIRED WITH CFRP." Journal of Engineering 15, no. 03 (2009): 3891–906. http://dx.doi.org/10.31026/j.eng.2009.03.06.

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Fiber reinforced polymers are typically comprised of high strength fibers (e.g. carbon and glass) impregnated with an epoxy (often termed the matrix). Experimental investigations of the behavior of reinforced concrete beams, strengthened or repaired by CFRP for flexural case have been presented in this paper. The experimental program consisted of 14 test beams. The study took into account strengthened and repaired cases in using CFRP; therefore, similar beams were used once for strengthening and once for repairing to make a comparison between them. All beams had been tested in a simply support

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8

Chen, Hua, Kan Kang, and Lang Ni Deng. "Construction Technology Research of RC Beams Strengthened with Prestressed CFRP Plates." Advanced Materials Research 268-270 (July 2011): 659–63. http://dx.doi.org/10.4028/www.scientific.net/amr.268-270.659.

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The method of applying prestress to CFRP plates can make full use of the characteristics of high-strength, enhance the force properties, prevent peeling damage and reduce the strain lag. Construction technology of prestressed CFRP plates strengthening reinforcement concrete beams was introduce in this paper, and bending test of 6 reinforcement concrete beams strengthened with prestressed CFRP plates were carried out based on the self-developed prestressed CFRP plates supporting anchorages. The test results indicate that the flexural capacity and crack resistance capacity can be increased compa

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9

Luo, Tao. "Research on Mechanical Behavior of RC Beams Strengthened with CFRP by Anti-Arch Method." Applied Mechanics and Materials 578-579 (July 2014): 127–30. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.127.

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The mechanical behavior of RC beam strengthened with CFRP by anti-arch method and directly pasting CFRP through model test is analyzed. It explains that the reinforced RC beam with CFRP by anti-arch method can solve the influence of beam's loading by the secondary stress which exists in the method of pasting CFRP directly in strengthening RC beams improve the beam's load when it cracks and the carrying capacity, and decrease the deflection deformation and crack width and gap when the beam carries load. It can make the most use of high strength of tensile properties of CFRP.

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10

Konate, Mamadou, and Zia Razzaq. "Method for Reducing Warping Stresses in Torsionally Loaded I-Section Members using CFRP Plates." European Journal of Engineering and Technology Research 7, no. 6 (2022): 158–60. http://dx.doi.org/10.24018/ejeng.2022.7.6.2934.

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This paper presents a method for reducing warping normal stresses in torsionally loaded I-section members by utilizing carbon fiber-reinforced polymer (CFRP) plates. The CFRP plates are bonded to the outer surfaces of the flanges with a view to reducing warping normal stresses. The maximum warping normal stress in the flanges of a steel I-shaped member without the CFRP plates is compared to those obtained with the CFRP plates having various thicknesses. It has been found that the use of CFRP plates bonded to both flanges of the I-section result in a substantial reduction of the warping stresse

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11

Jung, Frank. "Composite Use of CFRP, Steel and Aluminum." ATZ worldwide 123, no. 3 (2021): 14–15. http://dx.doi.org/10.1007/s38311-021-0650-5.

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Tufail, Rana Faisal, Xiong Feng, and Muhammad Zahid. "Behavior of unconfined and CFRP confined rubberized concrete." International Journal of Low-Carbon Technologies 15, no. 1 (2019): 65–83. http://dx.doi.org/10.1093/ijlct/ctz058.

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Abstract The use of rubberized concrete (RuC) is an effective environmental approach to reduce the amount of scrap tires around the world. However, there are serious concerns regarding the compressive strength of RuC. This article investigates the use of externally bonded carbon fiber reinforced polymer (CFRP) jackets on RuC to develop a novel high strength and deformable CFRP confined RuC. In this study, 66 RuC cylinders were cast with 0, 10, 20, 30, 40 and 50% fine or coarse rubber to replace mineral aggregates. The RuC cylinders were then confined with one, two or three layers of CFRP jacke

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13

Al-Yousuf, Ayad, Yaman Sami Shareef Al-Kamaki, Hanadi Abdulridha Lateef, et al. "The Behavior of Reinforced Concrete Slabs Strengthened by Different Patterns and Percentages of Carbon Fiber-Reinforced Polymer (CFRP) Plate." Construction Materials 5, no. 2 (2025): 24. https://doi.org/10.3390/constrmater5020024.

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The use of fiber-reinforced polymer (FRP) composites in retrofitting and strengthening reinforced concrete (RC) slabs has gained substantial attention due to their durability, high strength-to-weight ratio, and ease of application. The objective of this study was to theoretically investigate the flexural behavior of RC slabs strengthened with carbon fiber-reinforced polymer (CFRP) plates applied in different percentages and patterns using finite element methods (FEMs) in comparison with the experiment outcomes available in the literature using the ABAQUS software (version 2020). This study foc

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14

Pakpahan, Andrew Agaton. "Analysis And Experimental Use Of CFRP Wrap Type On Flexible Reinforcement Of Concrete Beam." Jurnal Mekintek : Jurnal Mekanikal, Energi, Industri, Dan Teknologi 13, no. 1 (2022): 12–18. http://dx.doi.org/10.35335/mekintek.v13i1.33.

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Now, reinforced concrete structures are more commonly used in buildings because they are cheaper than steel structures. However, many concrete structures are damaged due to planning errors and changes in building functions, so there are several ways to overcome this problem, by providing Fiber Reinforced Polymer (FRP) reinforcement. In this study, researchers discussed the comparison of the flexural strength of reinforced concrete beams using Fiber Reinforced Polymer (FRP). In this case, the researcher uses a Wrap-Type Carbon Fiber Reinforced Polymer (CFRP) as external reinforcement. The beam

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Zaki, Mohammed A., and Hayder A. Rasheed. "Impact of efficiency and practicality of CFRP anchor installation techniques on the performance of RC beams strengthened with CFRP sheets." Canadian Journal of Civil Engineering 46, no. 9 (2019): 796–809. http://dx.doi.org/10.1139/cjce-2018-0560.

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Utilizing fiber reinforced polymer (FRP) anchors can enhance the strength and delay the debonding of flexural FRP in strengthened reinforced concrete (RC) beams. In this study, two different techniques are used for applying carbon FRP (CFRP) spike anchors to improve the performance of RC beams strengthened with CFRP sheets. These two techniques are compared with respect to the ease of application, time spent, size of installation team, and performance. The first technique involved applying the CFRP anchors to begin with, then installing CFRP sheets by separating the fibers at the location of a

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16

Xie, Xiao Qiu, Zhen Fu Chen, and Shan Shan Guo. "Bridge Bearing Capacity Test and the Application Research Carbon Fiber Reinforcement Technology." Advanced Materials Research 1065-1069 (December 2014): 860–64. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.860.

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First, conducting static load tests for a 5 span bridge, then carry on application research for the bridge based on the embedded carbon fiber (CFRP) reinforced flexural reinforcement aiming at the shortcomings of its flexural properties, At last, the effectiveness of strengthening reinforced concrete beam that reinforcement by embedded CFRP has been discussed. The results show that embedded CFRP reinforcement beam can make full use of the characteristics of high strength of CFRP, which can improved obviously the capacity of the reinforced beam and the maximum increased capacity can reach 13.2%

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17

Lu, Chunling, Xiangxiang Wang, Yuwen Ning, Kang Wen, and Qiang Wang. "Numerical Investigation on the Structural Behavior of a Short-Span Cable-Stayed Bridge with Steel and CFRP Hybrid Cables." Materials 17, no. 9 (2024): 2032. http://dx.doi.org/10.3390/ma17092032.

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In this paper, a thorough investigation is presented on the static and dynamic behaviors of a short-span cable-stayed bridge (CSB) incorporating steel and carbon fiber reinforced polymer (CFRP) hybrid cables. The study focuses on the world’s largest span and China’s first highway, CFRP CSB. The performance of the CSB was compared using numerical simulations under four different cable patterns: steel cables, CFRP cables, and steel, and two types of hybrid cables with different structural arrangements. The results indicate that the use of the use of CFRP cables in the long cable region in the sh

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18

Al-Khafaji, Ayssar, and Hani Salim. "Flexural Strengthening of RC Continuous T-Beams Using CFRP." Fibers 8, no. 6 (2020): 41. http://dx.doi.org/10.3390/fib8060041.

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In this paper, experimental investigations for strengthening reinforced concrete (RC) continuous beams were performed. Eighteen T-beams were cast, twelve of which were inverted T-beams where the flange portion of the T-beam was subjected to positive flexure to represent the support region of a continuous beam. Six of the T-beams were non-inverted where the web is subjected to positive flexure. Carbon fiber reinforced polymer (CFRP) sheets with different widths were considered, and different strengthening configurations with the same area of CFRP were investigated. The use of one-layer, multipl

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19

Nobile, R., A. Saponaro, and A. Pirinu. "The use of induction heating for thermographic inspection of composite laminates." IOP Conference Series: Materials Science and Engineering 1275, no. 1 (2023): 012015. http://dx.doi.org/10.1088/1757-899x/1275/1/012015.

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Abstract In the present paper, an active thermographic technique is proposed for the inspection of a unidirectional GFRP panel with integrated artificial internal defects and an aeronautical CFRP panel with real small production defects. Different inductor geometries were considered by varying the length and the number of spires, finally allowing to identify the optimal solution. Several tests allowed to identify the optimal experimental setup for defect detection as a function of the location of the defect. The acquired thermal maps were processed in Matlab with a suitable analysis algorithm

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20

Ianăşi, Aurora Cătălina. "Determination of some Mechanical Characteristics of Wood Elements Improved with Composites Materials." Advanced Materials Research 1036 (October 2014): 30–35. http://dx.doi.org/10.4028/www.scientific.net/amr.1036.30.

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Wood is a material of construction relatively inexpensive and easy to put into practice because of its lightness, reusability, simplicity in fabrication and environmental compatibility. However, its ability to lift load small compared to other building materials, it greatly limits the range of its use. Increasing the mechanical strength of wood elements used in construction is a goal that, once achieved, would expand the use of this material, with notable economic repercussions. The use of composite materials such as CFRP (carbon fiber reinforced plastic) as reinforcement for wood elements und

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21

Kilian, Leonie, Patrick Fehn, Floyd Daniel Bischop, et al. "Hochpräzise Funktionsflächen an CFK-Bauteilen." Zeitschrift für wirtschaftlichen Fabrikbetrieb 119, no. 7-8 (2024): 553–57. http://dx.doi.org/10.1515/zwf-2024-1094.

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Abstract With increasing demands on the power density of electrical drive systems metal materials commonly used in mechanical engineering are reaching their performance limits. Further improvements can be achieved using carbon fiberreinforced polymers (CFRP). To enable their use in industrial practice, the SPOTLIGHT project focuses on the manufacturing and grinding of high-precision functional surfaces of CFRP components. The CFRP components are evaluated through drive technology demonstrators.

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22

Hussein, Herish A., and Zia Razzaq. "Strengthening Prestressed Concrete Bridge Girders and Building Beams with Carbon Fiber Reinforced Polymer Sheets." European Journal of Engineering and Technology Research 6, no. 1 (2021): 55–57. http://dx.doi.org/10.24018/ejers.2021.6.1.2323.

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The effect of Carbon Fiber Reinforced Polymer (CFRP) retrofitting and concrete type on the flexural strength of prestressed concrete I-section girders used in bridges and beams in buildings is investigated. Non-linear moment-curvature relationships are predicted using an iterative algorithm for both non-retrofitted and CFRP-retrofitted prestressed concrete girder and beam cross-sections with various concrete types. Two different CFRP-retrofitting schemes are analyzed for comparing their effectiveness. It is found that although non-retrofitted beam section exhibits greater ductility, the use of

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Hussein, Herish A., and Zia Razzaq. "Strengthening Prestressed Concrete Bridge Girders and Building Beams with Carbon Fiber Reinforced Polymer Sheets." European Journal of Engineering and Technology Research 6, no. 1 (2021): 55–57. http://dx.doi.org/10.24018/ejeng.2021.6.1.2323.

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The effect of Carbon Fiber Reinforced Polymer (CFRP) retrofitting and concrete type on the flexural strength of prestressed concrete I-section girders used in bridges and beams in buildings is investigated. Non-linear moment-curvature relationships are predicted using an iterative algorithm for both non-retrofitted and CFRP-retrofitted prestressed concrete girder and beam cross-sections with various concrete types. Two different CFRP-retrofitting schemes are analyzed for comparing their effectiveness. It is found that although non-retrofitted beam section exhibits greater ductility, the use of

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Wu, Ying Han, Min Lang Lin, and Chich Tsung Lin. "Experimental Bond Performance of CFRP Anchors." Advanced Materials Research 739 (August 2013): 303–8. http://dx.doi.org/10.4028/www.scientific.net/amr.739.303.

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In this paper, the technique: CFRP wrapping combined with CFRP anchors for RC structural member retrofit and its design criteria are introduced for a start. Experimental investigations [1,2, had been adopted and developed the use of CFRP anchors to provide confinement and improve square jacketing behaviors as well as prevent premature debonding for CFRP wraps. To fully determine the anchorage performance of CFRP anchor, a total of forty five specimens for the fiber bolt and the spread tail, two important components in CFRP anchor, were constructed and tested. The experimental results of failur

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Mohamed, Khalid, Jamal A. Abdalla, and Rami A. Hawileh. "Experimental and Analytical Investigations of the Use of Groove-Epoxy Anchorage System for Shear Strengthening of RC Beams Using CFRP Laminates." Materials 13, no. 19 (2020): 4350. http://dx.doi.org/10.3390/ma13194350.

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Reinforced concrete (RC) beams strengthened in shear with carbon fiber reinforced polymer (CFRP) laminates as externally bonded reinforcement (EBR) usually fail due to debonding. This paper presents an experimental and analytical investigation on the use of groove-epoxy as an anchorage system for CFRP plates and sheets bonded on both sides of shear deficient RC beams. The aim of this study is to assess the effectiveness of using groove-epoxy in enhancing the shear capacity of RC beams. Nine rectangular RC beams were strengthened with CFRP plates and sheets with groove-epoxy anchorage systems o

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Amer M. Ibrahim. "INVESTIGATIONS TO THE PARAMETERS EFFECTING SHEAR STRENGTH OF RC BEAMS STRENGTHENED WITH CFRP LAMINATIONS." Diyala Journal of Engineering Sciences 2, no. 2 (2009): 113–22. http://dx.doi.org/10.24237/djes.2009.02209.

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This paper focuses on the strengthening of reinforced concrete beams deficient in shear using external bonded Carbon Fiber Reinforced Polymer CFRP laminations. The CFRP laminations can be used to enhance the shear capacity of beams and to change the mode of failure from shear to flexure. The investigation is made in order to estimate the contribution of CFRP reinforcement to the shear capacity of strengthening reinforced concrete beams. The finite element method presented by ANSYS software used for modeling the reinforced concrete beam with CFRP strengthened. The model makes use of the ANSYS s

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Teng, Congyang, and Zhicheng Zhu. "Study on the Methods of Strengthening Reinforced Concrete Beams with CFRP." Highlights in Science, Engineering and Technology 75 (December 28, 2023): 297–303. http://dx.doi.org/10.54097/jh6t7190.

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After the long-term use of reinforced concrete structures, there may be structural aging and structural damage, these common engineering problems. As a result, the performance is reduced, so it is necessary to strengthen to meet the corresponding safety requirements. Carbon Fiber Reinforced Polymer (CFRP) has the advantages of lightweight, strong, high tensile strength and tensile degree. Therefore, CFRP is widely used in reinforcement. Based on CFRP reinforcement of reinforced concrete beams, this paper analyzes its reinforcement methods. The paper mainly analyzes the influence of different p

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Abdel-Jaber, Ma’en, Mu’tasim Abdel-Jaber, Hasan Katkhuda, Nasim Shatarat, Alaa Sulaiman, and Rola El-Nimri. "Influence of Stirrup Spacing on the Strengthening and Rehabilitating of RC T-beams Using Near-Surface Mounted Carbon-Fiber-Reinforced Polymer Strips." Fibers 10, no. 12 (2022): 103. http://dx.doi.org/10.3390/fib10120103.

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This paper aims to investigate the effect of using different configurations of near-surface mounted carbon-fiber-reinforced polymer (NSM-CFRP) strips on the shear strength of strengthened and rehabilitated reinforced concrete (RC) T-beams with different internal shear stirrup spacing. The internal shear stirrup spacing was 50 and 150 mm. The NSM-CFRP strips were at an inclination of 45° and spaced at 75 and 150 mm. A total of eight beams were tested in this study: two beams without NSM-CFRP as control beams for the purpose of comparison; three beams were strengthened by NSM-CFRP; and three bea

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Miss. Sushmita H. Kshirsagar et al. "Review on: Multi - Objective optimization of Composite Automobile over Drive Shaft." International Journal on Recent and Innovation Trends in Computing and Communication 7, no. 3 (2019): 44–47. http://dx.doi.org/10.17762/ijritcc.v7i3.5260.

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Composites is increasingly used in different applications in the last decade, especially in aerospace due to their high strength and lightweight characteristics. Indeed, the latest models of Airbus (A350) and Boeing (B787) have employed more than 50 wt% of composites, mainly Carbon Fiber Reinforced Polymers (CFRP). Yet, the increased use of CFRP has raised the environmental concerns about their end-of-life related to waste disposal, consumption of non-renewable resources for manufacturing and the need to recycle CFRP wastes. In this study, generic model is developed in order to propose an opti

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Jin, Bo, De Feng Zu, Han Sheng Wu, and Yongwu Gao. "Seismic Response Analysis of CFRP Retrofitted Reinforced Concrete Structures." Advanced Materials Research 671-674 (March 2013): 1445–57. http://dx.doi.org/10.4028/www.scientific.net/amr.671-674.1445.

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The use of carbon reinforced polymer (CFRP) to provide lateral confinement for enhanced ductility and strength of reinforced concrete structures has been increasing. The present study, attempts to analytically investigate the effect of the layout of frame columns retrofitted with different layers of CFRP on the seismic performance and damage potential of structures under strong ground motion using realistic and efficient computational models. Based on the shaking table tests of several reinforced concrete (RC) flat slab beamless construction models, the seismic performance of structures streng

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Tafsirojjaman, T., Sabrina Fawzia, and David Thambiratnam. "Numerical Investigation on the CFRP Strengthened Steel Frame under Earthquake." Materials Science Forum 995 (June 2020): 123–29. http://dx.doi.org/10.4028/www.scientific.net/msf.995.123.

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Steel structures are commonly used in seismic regions of the world because of its strength and ductility. However, these structures are still prone to damage during an earthquake. With this risk of seismic damage, the strengthening of steel structures is a major concern in order to resist the dynamic loads resulted from earthquakes. This report investigates the potential for the use of Carbon Fibre Reinforced Polymer (CFRP) to strengthen the rigid steel frame under a real earthquake load. This research will be undertaken using Strand7, a finite element (FE) analysis software. To validate the a

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Wang, Ce, Shuai Guan, Md Sabbrojjaman, and T. Tafsirojjaman. "Bond Performance of CFRP Strands to Grouting Admixture for Prestressed Structure and Development of Their Bond–Slip Constitutive Models." Polymers 15, no. 13 (2023): 2906. http://dx.doi.org/10.3390/polym15132906.

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Prestressed concrete structures have witnessed widespread use in building and infrastructure applications during the last two decades due to their high stiffness and strength indices. However, structural failures caused by the corrosion of steel reinforcing bars or strands have proliferated, opening the door for carbon fibre-reinforced polymer (CFRP) strands as an excellent alternative with high corrosion resistance. The bonding interaction between the CFRP strands and concrete is the fundamental parameter in shaping the structural behaviour of CFRP prestressed concrete structures. In this pap

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Jagtap, Prashant Rangrao, and Sachin M. Pore. "Effectiveness of CFRP composites on compression flange of structural I-beam." Journal of Engineering, Design and Technology 17, no. 4 (2019): 782–92. http://dx.doi.org/10.1108/jedt-09-2018-0155.

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Purpose This study aims to use carbon fiber-reinforced polymer (CFRP) laminates to strengthen the compression flange of structural I-beam so as to avoid local failure of compression flange and to take a load to its full capacity. Light weight beam (LB) 100 at 5.1 kg/m and LB 115 at 8.1 kg/m are used for this purpose. The compression flange of a beam is well prepared to ensure a rust-free surface so as to achieve proper bonding between the flange and fiber sheet to avoid de-bonding at the time of testing. A flange of the beam is strengthened using CFRP sheets applied to it with the help of adhe

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ADITYA PURNAMA and MARTHIN BAGOES NUGROHO. "PENGUATAN BALOK KAYU SENGON (PARASERIANTHES FALCATARIA) DENGAN MENGGUNAKAN CFRP DALAM MENAHAN BEBAN LENTUR." JURNAL DAKTILITAS 3, no. 2 (2023): 75–93. http://dx.doi.org/10.36563/daktilitas.v3i2.952.

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ABSTRACT Sengon wood (Paraserianthes Falcataria) is one of the wood varieties that is often used in Indonesiain the forest industry. This type of wood was chosen because it grows quickly, can grow in various types ofsoil, has superior silvicultural properties, and the quality of the wood is suitable for use in making panelsand for carpentry purposes. However, the disadvantage of using wooden beams is their inability towithstand bending loads. So that the strength of wooden beams in withstanding bending loads can be increased, a method thatcan be applied is to use additional materials such as C

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Murad, Yasmin. "An experimental study on flexural strengthening of RC beams using CFRP sheets." International Journal of Engineering & Technology 7, no. 4 (2018): 2075. http://dx.doi.org/10.14419/ijet.v7i4.16546.

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The use of carbon fiber reinforced polymer (CFRP) sheets is becoming a widely accepted solution for strengthening and repairing rein-forced concrete (RC) structures. To date, the behavior of RC beams, strengthened with 60˚ and 45˚ inclined CFRP sheets, has not clearly explained. An experimental program is proposed in this paper to investigate the flexural behavior of RC beams strengthened with CFRP sheets. CFRP sheets were epoxy bonded to the tension face to enhance the flexural strength of beams inducing different orientation angles of 0˚, 45˚, 60˚ and 90˚ with the beam longitudinal axis. The

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Abdulla, Aziz Ibrahim, Khalid Naji Mahasneh, Mohammad W. Shaheen, Ammar Saleem Khazaal, and Muataz Ibrahim Ali. "Behavior of Reinforced Concrete Beams Strengthened by CFRP and Wire Rope." Journal of advanced Sciences and Engineering Technologies 1, no. 3 (2018): 1–17. http://dx.doi.org/10.32441/jaset.v1i3.179.

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The current research aims to study the effect of static loads on concrete beams strengthened by wire rope. Each beam was subjected to a central concentrated load with an average loading speed of 1 kN/min. The use of steel wire rope has been suggested as a new economical technique to strengthen and rehabilitate reinforced concrete beams, as well as to support the CFRP used in strengthening. The best results were obtained when using either CFRP and wire rope together, or wire rope on its own. It was found that strengthening by CFRP and wire rope increased the flexural strength, hardness, and tou

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Abdulla, Aziz Ibrahim, Khalid Naji Mahasneh, Mohammad W. Shaheen, Ammar Saleem Khazaal, and Muataz Ibrahim Ali. "Behavior of Reinforced Concrete Beams Strengthened by CFRP and Wire Rope." Journal of Advanced Sciences and Engineering Technologies 1, no. 3 (2021): 33–45. http://dx.doi.org/10.32441/jaset.02.03.04.

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    The current research aims to study the effect of static loads on concrete beams strengthened by wire rope. Each beam was subjected to a central concentrated load with an average loading speed of 1 kN/min. The use of steel wire rope has been suggested as a new economical technique to strengthen and rehabilitate reinforced concrete beams, as well as to support the CFRP used in strengthening. The best results were obtained when using either CFRP and wire rope together, or wire rope on its own. It was found that strengthening by CFRP and wire rope increased the fl

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Hashemi, Seyyed Motasam, and Ashraf Ayoub. "Improved Bond Stress-Slip Relationships for Carbon Fibre-Reinforced Polymer-Strengthened Masonry Triplets." Buildings 14, no. 1 (2024): 257. http://dx.doi.org/10.3390/buildings14010257.

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Carbon fibre-reinforced polymer (CFRP) emerges as a viable solution for reinforcing unreinforced masonry (URM) walls subjected to shear loads. While masonry structures are straightforward to construct, the complexity of the construction materials, especially in terms of their mechanical properties, poses challenges for numerical studies of their structural behaviour. Walls, being fundamental components in masonry construction, play a crucial role in transferring both horizontal and vertical lateral forces. This study investigates the enhancement of masonry wall behaviour through the reinforcem

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Chen, Wei Hua, and Mei Qin Wu. "Calculation of Shear Capacity of Steel Reinforced Concrete Beams Strengthened with Near-Surface Mounted CFRP Rods." Applied Mechanics and Materials 193-194 (August 2012): 852–54. http://dx.doi.org/10.4028/www.scientific.net/amm.193-194.852.

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Some calculated methods of shear capacity of RC beams strengthened with NSM(near-surface mounted) CFRP(Carbon fiber reinforce polymer) rods are reviewed based on the experimental data on shear capacity of RC beams strengthened with NSM CFRP rods. Therefore, according to the destruction forms of steel reinforced concrete beam strengthened with NSM CFRP rods, the formula for calculating the shear capacity of the beam is given. The formula is expressed clearly, simple and easy to use.

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Chen, Longlong, Xuhong Qiang, Xu Jiang, Hao Dong, and Wulong Chen. "Study on Prestressed Concrete Beams Strengthened with External Unbonded CFRP Tendons." Materials 17, no. 18 (2024): 4622. http://dx.doi.org/10.3390/ma17184622.

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This study builds a refined finite element (FE) model to research the flexural behavior of a reinforced beam with prestressed CFRP tendons. The precision of the FE model is validated through a comparison with the experimental outcomes. The numerical findings align well with the experimental outcomes, encompassing the failure mode, load-deflection curve, load-strain curves of concrete, steel reinforcements and CFRP tendons. The variances between predicted values and experimental results are within 10%. Leveraging the verified FE model, an extensive parametric study has been carried out to exami

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Zainurrahman, Eko Darma, and Sri Nuryati. "Carbon Fiber Reinforced Polymer Sebagai Perkuatan Lentur pada Balok Beton." BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil 8, no. 1 (2020): 20–28. http://dx.doi.org/10.33558/bentang.v8i1.1947.

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Concrete Beams can experience a sudden collapse when overload because of its brittle characteristic. The use of Carbon Fiber Reinforced Polymer (CFRP) on concrete beams externally as external confinement is predicted to improve concrete mechanics properties, increase the ductility and capacity of concrete, and the flexural strength of concrete beams. An experimental study on the reinforcement of concrete beams with Carbon Fiber Reinforced Polymer (CFRP) was carried out to estimate the effectiveness of CFRP on concrete structures as a concrete beam flexural reinforcement material. Two types of

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Dewi, Sri Murni, Wisnumurti Wisnumurti, Ari Wibowo, and Adi Susetyo Dermawan. "Pengembangan Model Perbaikan dan Peningkatan Kekuatan Struktur Sambungan Balok-Kolom pada Bangunan Pasca Gempa." Rekayasa Sipil 17, no. 1 (2023): 106–14. http://dx.doi.org/10.21776/ub.rekayasasipil.2023.017.01.15.

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This paper presents an experimental study on repairing damaged beam-column reinforced concrete joints using carbon fiber reinforced polymer (CFRP). The test objects were in the shape of the letter T which represented the beam-column connection. The test object came from the previous research which had been failure. The retrofitted action includes strengthening the column position, injection with concrete glue and adding CFRP. Two kinds of CFRP were use, CFRP sheets (EB) and CFRP strips (NSM). The integrity of concrete after injection were tested with Ultrasonic Pulse Velocity (UPV). The retrof

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Pawar, Kirti, and Popat Kumbhar. "Performance Analysis of Castellated Steel I-Beam using FRP Stiffeners." International Journal for Research in Applied Science and Engineering Technology 10, no. 2 (2022): 1134–42. http://dx.doi.org/10.22214/ijraset.2022.38596.

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Abstract: Castellated beams are now widely used for a variety of structural applications. Castellated beams are the ones which have perforations in their web part. However, these perforations increase stress concentration around the openings, and also get subjected to web post-buckling. To reduce these post-buckling failures and increase the load-carrying capacity, the castellated steel I-beams are provided with different types of stiffeners at various locations. In this paper, the behaviour of a hexagonal castellated steel I-beam (ISMB) under point loading is investigated using carbon fibre p

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Błachut, J., and L. Dong. "Use of woven CFRP for externally pressurized domes." Composite Structures 38, no. 1-4 (1997): 553–63. http://dx.doi.org/10.1016/s0263-8223(97)00091-3.

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Rademacker, Tim, Marc Fette, and Günter Jüptner. "Sustainable Use of Carbon Fibers through CFRP Recycling." Lightweight Design worldwide 11, no. 5 (2018): 12–19. http://dx.doi.org/10.1007/s41777-018-0041-9.

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Alfahdawi, Ibrahim H., and S. A. Osman. "Simulation Behavior of Flexure in Reinforced Concrete Beams Strengthened with Carbon Fiber Reinforced Polymer (CFRP)." Applied Mechanics and Materials 754-755 (April 2015): 432–36. http://dx.doi.org/10.4028/www.scientific.net/amm.754-755.432.

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When reinforced concrete (RC) beams are found deficient in flexure, and fails in shear capacity after shear strengthening, the need to use new technique for flexure strengthening become important. Over the years, there are many experimental studies had been carried out with this technique of strengthening, and finding from other researchers have proved to be effective and successful. In this study, the behavior of flexure in RC beams strengthened with carbon fiber reinforced polymer (CFRP) were investigated. ANSYS11 software package of finite element method was use to simulate two models of RC

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Emara, Mohamed, Nada Elkomy, and Hilal Abdel Kader. "Numerical Assessment of Reinforced Concrete Beams Strengthened with CFRP Sheets under Impact Loading." Frattura ed Integrità Strutturale 15, no. 58 (2021): 48–64. http://dx.doi.org/10.3221/igf-esis.58.04.

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This paper investigates numerically the behavior of Reinforced Concrete (RC) beams, strengthened using Carbon Fiber Reinforced Polymers (CFRP) sheets, subjected to impact loading. Three-dimensional finite element analysis was performed and its results were verified against experimental ones available in the literature showing good agreement. Then, a comprehensive parametric study was performed to investigate the effect of studied parameters on the strengthened RC beams. The main studied parameters were type and size of reinforcing bars, geometric characteristics of externally bonded CFRP sheet

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Ajwad, A., U. Ilyas, N. Khadim, Abdullah, M. U. Rashid, and A. Aqdas. "Restoring Initially Cracked Reinforced Concrete Beams utilizing Carbon Fiber Reinforced Polymer Strips." NFC IEFR Journal of Engineering and Scientific Research 7, no. 1 (2019): 30–34. http://dx.doi.org/10.24081//nijesr.2019.1.0006.

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Carbon fiber reinforced polymer (CFRP) strips are widely used all over the globe as a repair and strengthening material for concrete elements. This paper looks at comparison of numerous methods to rehabilitate concrete beams with the use of CFRP sheet strips. This research work consists of 4 under-reinforced, properly cured RCC beams under two point loading test. One beam was loaded till failure, which was considered the control beam for comparison. Other 3 beams were load till the appearance of initial crack, which normally occurred at third-quarters of failure load and then repaired with dif

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Zhao, Shao Wei, Kun Yuan, and Rong Guo. "Experimental Study on the Damaged RC Frame Structure Strengthened by Composite Reinforcement of CFRP and Steel Plate under Low-Cycle Repeated Load." Applied Mechanics and Materials 94-96 (September 2011): 1437–41. http://dx.doi.org/10.4028/www.scientific.net/amm.94-96.1437.

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We take low frequency cyclic reverse tests to three RC frames made with the same dimension. One of frames is not reinforced for reference; the others are loaded to steel yield and then completely uninstalled. One of injury RC frames is strengthened by CFRP, and we use CFRP and steel plate mixed to strengthen the other one. Then experiment under low-cycle repeated load for strengthened frames have done again, and two seismic reinforcement methods are compared by the test performance of the framework. The results show that compared to CFRP, mixed reinforcement can improve the structural bearing

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Lian, Shao, Ou Jinping, and Zhou Zhi. "Development of a new anchorage system for carbon fiber–reinforced polymer rods using extrusion process." Advances in Structural Engineering 25, no. 5 (2022): 1002–14. http://dx.doi.org/10.1177/13694332211057265.

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Carbon fiber–reinforced polymer (CFRP) rods have been considered as a candidate material for prestressed concrete applications because of their superior properties. For current applications, successful use of CFRP rods is linked to an efficient anchorage system design. This paper presents a newly developed anchorage system for CFRP rods and the design concept that the extrusion process is used to generate gripping force. The proposed anchorage system consists of a steel barrel and an aluminum sleeve, and an extrusion region is designed on the outside of barrel to generate a suitable contact pr

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