Evaluation of Long Carbon Fiber Reinforced Concrete to
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Evaluation of Long Carbon Fiber Reinforced Concrete to ...

2020-7-24  The objective of this research was to develop coatings and manufacturing processes that would allow the use of “long” carbon fibers within conventional reinforced concrete, resulting in signif-icantly improved dynamic resistance of the material. The ideal fiber is both resilient, so it can withstand the harsh environment of the mixing process, and disperses well with proper align-ment. In the past, attempts to use “long” carbon fibers

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Evaluation of Long Carbon Fiber Reinforced Concrete to ...

2021-8-3  Long carbon fiber reinforced concrete has demonstrated significant resistance to impact and blast loading. The carbon fibers will potentially reduce spalling and the degree of cracking during an earthquake event as well as increase the overall structural capacity.

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Evaluation of Long Carbon Fiber Reinforced Concrete to ...

Evaluation of Long Carbon Fiber Reinforced Concrete to Mitigate Earthquake Damage of Infrastructure Components. The proposed study involves investigating long carbon fiber reinforced concrete as a method of mitigating earthquake damage to bridges and other infrastructure components.

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Experimental and numerical analyses of long carbon fiber ...

2013-7-1  The addition of long carbon fibers to traditional reinforced concrete is proposed as a method to improve the blast spalling resistance of concrete. A series of tests was conducted to compare the blast resistance of panels constructed with either conventional reinforced concrete (RC) or long carbon fiber-reinforced concrete (LCFRC).

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Nondestructive Evaluation of Carbon Fiber-Reinforced ...

2003-1-1  Bonded carbon fiber-reinforced polymer (CFRP) composites are rapidly gaining acceptance as a feasible solution for repair and strengthening of concrete structures. A reliable method of nondestructive evaluation (NDE) is needed to monitor the installation quality and the long-term efficacy of

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Durability Evaluation of Carbon Fiber-Reinforced Polymer ...

Durability Evaluation of Carbon Fiber-Reinforced Polymer Strengthened Concrete Beams: Experimental ... [6 x 10 in.]) and were 2743 mm (108 in.) long. Concrete mixture proportions having a ...

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Behavior of Long Carbon Fiber Reinforced Concrete Panels ...

[Show full abstract] (CFRC) and hybrid fiber reinforced concrete (HFRC) were explored at steel fiber volume fraction 0.5%, 1%, 1.5% and carbon fiber 0.1%, 0.2%, 0.3%. Results showed that the ...

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Nondestructive evaluation on damage of carbon fiber sheet ...

2002-10-1  The specimen used in this study is a rectangular concrete beam (for specimen dimensions, see Fig. 1).As shown in Fig. 1, the concrete specimen is reinforced by a steel bar measuring 13 mm in thickness and the edge of the specimen is rounded of 10 mm for reinforcement effects between the concrete and the CFS.The CFS is 0.11 mm in thickness. The adhesion process for CFS shown in Fig.

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CARBON FIBER REINFORCED CONCRETE

SHRP-ID/UFR-92-605 Carbon Fiber Reinforced Concrete Dr. Deborah D.L Chung Department of Mechanical and Aerospace Engineering State University of New York at Buffalo Strategic Highway Research Program I National Research Council Washington, DC 1992

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FLEXURAL PERFORMANCE EVALUATION OF VARIOUS

2020-4-29  Flexural performance evaluation of various carbon fibre fabric reinforced geopolymer composite Ceramics – Silikáty 64 (2) 215-226 (2020) 219 temperature, ~22 °C, with 45 % relative humidity for 24 h. Afterward, the specimens were demoulded, and wrapped again using a polypropylene film, and kept at room temperature until testing.

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Development of Long Carbon Fiber-Reinforced Concrete for ...

AbstractThis paper discusses the development and testing of long carbon fibers—fibers 75 mm long or longer—to improve the resistance of reinforced concrete to dynamic loading, such as blasts and im...

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Behavior of Long Carbon Fiber Reinforced Concrete Panels ...

[Show full abstract] (CFRC) and hybrid fiber reinforced concrete (HFRC) were explored at steel fiber volume fraction 0.5%, 1%, 1.5% and carbon fiber 0.1%, 0.2%, 0.3%. Results showed that the ...

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Structural Behavior Evaluation of Reinforced Concrete ...

However, this study uses fiber-reinforced polymer (FRP), which is an alternative to steel bars owing to its high tensile strength, and its non-corrosive and lightweight properties. It is a basic strengthening material, along with a carbon-fiber-reinforced polymer (CFRP) and glass-fiber-reinforced polymer (GFRP) in bar and sheet forms.

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Carbon Fibre Reinforced Concrete: Dependency of Bond ...

In this paper, a method for the evaluation of the influence of different polymer suspensions and environmental conditions on adhesion between an impregnated carbon fibre heavy tow and concrete for reinforcement will be proposed. For this purpose, the impregnation material itself was investigated as a polymer film before and after incubation in water and aqueous suspensions, such as NaOH and a ...

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Evaluation of Prestressed Concrete Girders Strengthened ...

This paper details the use of carbon fiber reinforced polymer (CFRP) sheets to repair and strengthen prestressed concrete bridge girders in flexure and shear. Three specimens that were removed from an overloaded bridge (Bridge No. 56) in Graham County, Kansas were tested.

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Evaluation of Bond Strength Between Carbon Fiber ...

2021-6-10  Evaluation of Bond Strength Between Carbon Fiber Reinforced Polymer (CFRP) Composites with Modified Epoxy Resins and Concrete Mohamed H. Rabie [email protected] Department of Civil and Architectural Engineering, Qatar University, Doha, Qatar Eman M. Fayyad [email protected] Center for Advanced Materials, Qatar University, Doha, Qatar Mohammad R ...

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CARBON FIBER REINFORCED CONCRETE

SHRP-ID/UFR-92-605 Carbon Fiber Reinforced Concrete Dr. Deborah D.L Chung Department of Mechanical and Aerospace Engineering State University of New York at Buffalo Strategic Highway Research Program I National Research Council Washington, DC 1992

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FLEXURAL PERFORMANCE EVALUATION OF VARIOUS

2020-4-29  Flexural performance evaluation of various carbon fibre fabric reinforced geopolymer composite Ceramics – Silikáty 64 (2) 215-226 (2020) 217 mesh with a small net size (C-10×15) was made up of 48 K individual filaments for the yarns in the longitudi-nal direction and 12 K individual filaments for the yarns

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Evaluation of ExtErnally BondEd fiBEr-rEinforcEd PolymEr ...

2018-4-4  BondEd fiBEr-rEinforcEd PolymEr SyStEmS to concrEtE StructurES ... (1290 mm2) are permissible as long as the defect area is less than 5% of the total area and ... problems can persist during the evaluation of the FRP concrete bond strength. Weather, particularly temperature fluctuations, can cause improper curing ...

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Computational Model for the Evaluation of the Service Life ...

2020-12-3  We propose a computational model for the evaluation of the service life of fiber-reinforced concrete structural elements subjected to long-term tension. The model is based on the first law of thermodynamics and a proposed idealized tensile stress-strain diagram of fibrous concrete. This model is used for the evaluation of the service life of a fiber-reinforced concrete plate containing a ...

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Numerical analyses of long carbon fiber reinforced ...

The purpose of this research was to evaluate impact and blast performance of long carbon fiber reinforced concrete experimentally and numerically. Experimental tests were conducted on plain concrete (PC), reinforced concrete, and four different types of long carbon fiber reinforced concrete (LCFRC). The results from each test were then compared to one another.

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Evaluation of Prestressed Concrete Girders Strengthened ...

This paper details the use of carbon fiber reinforced polymer (CFRP) sheets to repair and strengthen prestressed concrete bridge girders in flexure and shear. Three specimens that were removed from an overloaded bridge (Bridge No. 56) in Graham County, Kansas were tested.

Get Price

Computational Model for the Evaluation of the Service Life ...

2020-12-3  We propose a computational model for the evaluation of the service life of fiber-reinforced concrete structural elements subjected to long-term tension. The model is based on the first law of thermodynamics and a proposed idealized tensile stress-strain diagram of fibrous concrete. This model is used for the evaluation of the service life of a fiber-reinforced concrete plate containing a ...

Get Price

Carbon Fibre Reinforced Concrete: Dependency of Bond ...

In this paper, a method for the evaluation of the influence of different polymer suspensions and environmental conditions on adhesion between an impregnated carbon fibre heavy tow and concrete for reinforcement will be proposed. For this purpose, the impregnation material itself was investigated as a polymer film before and after incubation in water and aqueous suspensions, such as NaOH and a ...

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CONSTRUCTION AND EVALUATION OF FULL-SCALE CFRP

2019-4-10  Abstract: The present study deals with the fabrication, instrumentation, and flexural-testing of a full-scale double-T (DT) concrete girder prestressed using bonded pretensioned carbon fiber reinforced polymer (CFRP) Leadline tendons and unbonded carbon fiber

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An Experimental Evaluation of Mechanical Properties of ...

2018-8-28  Fiber reinforced concrete (FRC) had overcome this problem since 1960s. In past fibers were widely used in many types of mortar and concrete for providing stability. Steel, organic polymers, glass, carbon, asbestos, and cellulose are most commonly used fibers. Adding fibers to concrete matrix has been long recognized as

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Evaluation of ExtErnally BondEd fiBEr-rEinforcEd PolymEr ...

2018-4-4  BondEd fiBEr-rEinforcEd PolymEr SyStEmS to concrEtE StructurES ... (1290 mm2) are permissible as long as the defect area is less than 5% of the total area and ... problems can persist during the evaluation of the FRP concrete bond strength. Weather, particularly temperature fluctuations, can cause improper curing ...

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HTML-txt: MICROWAVE NONDESTRUCTIVE EVALUATION OF CARBON ...

2006-8-15  Abstract: Carbon fiber reinforced polymer (CFRP) laminates are externally bonded to reinforced concrete (RC) members to provide additional strength such as flexural, shear, etc. However, the presence of defects in the form of delaminations between the CFRP laminate and concrete substrate may significantly affect the structural integrity and ...

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EVALUATION OF EXTERNALLY BONDED CFRP SYSTEMS FOR

2019-4-10  Fibre-Reinforced Polymer Reinforcement for Concrete Structures, pp. 417-426 (2003) No Access EVALUATION OF EXTERNALLY BONDED CFRP SYSTEMS FOR THE STRENGTHENING OF RC SLABS K. Y. TAN

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Application of Ultrasonic Measurements for the

2021-2-3  of ultrasonic measurement to characterize Steel-Fiber-Reinforced Concrete (SFRC). Specifically, the effects of steel fiber content, age, moisture content, and fiber orientation on Ultrasonic-Pulse-Velocity (UPV) were investigated. In this regard, beam and cylindrical samples were fabricated with different steel fiber contents.

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