Rehabilitation of deteriorated reinforced self-consolidating concrete brackets and corbels using CFRP composites: diagnosis and treatment

Shakir, Qasim M.; Alsaheb, Sarah D. Abd; Farsangi, Ehsan Noroozinejad

doi:10.1007/s41024-022-00262-2

Cited by 7 publications

(3 citation statements)

References 19 publications

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“…Composites of CFRP are progressively used in the branches of civil engineering and structural uses. These materials offer a range of advantages and limitations that engineers and designers need to consider when selecting them for their projects [21,22]. Here are five key points to consider:…”

Section: Advantages and Limitations Of Cfrp Composites In Civil Engin...mentioning

confidence: 99%

Carbon Fibre-Reinforced Polymer (CFRP) Composites in Civil Engineering Application—A Comprehensive Review

et al. 2023

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In civil engineering, carbon fibre-reinforced polymer (CFRP) composites have emerged as a promising alternative to conventional materials. The article provides a comprehensive overview of the application of CFRP composites in various building structural elements and their characteristics and properties, such as their fatigue and corrosion resistance, stiffness and high strength, and incorporation of temperature factors. The advantages and disadvantages of CFRP composites and the current trends and prospects for CFRP composites in the construction sector are discussed. In addition, the article compares various studies on CFRP composites to shed light on their performance and potential limitations. This paper aims to provide useful information to researchers and practitioners interested in using CFRP composites in civil engineering applications. In addition, the article discusses emerging materials in CFRP, such as nanostructured carbon fibres, hybrid fibre reinforcement, and self-sensing CFRP. Additionally, the paper outlines how CFRP composites promote sustainability by increasing structural durability and longevity.

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Section: Advantages and Limitations Of Cfrp Composites In Civil Engin...mentioning

confidence: 99%

Carbon Fibre-Reinforced Polymer (CFRP) Composites in Civil Engineering Application—A Comprehensive Review

et al. 2023

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“…Over the past two decades, there has been a remarkable increase in the adoption of Fiber-Reinforced Polymer composites effectively improves their performance, resulting in significant capacity enhancements under various damage levels [1]. Fiber Reinforced Polymer (FRP) composites have revolutionized civil engineering and construction industries, offering innovative solutions.…”

Section: Introductionmentioning

confidence: 99%

Identification of Optimum Retrofitting Approach for Strengthening RC Beams using CFRP Sheets

Gandla Nanabala,

2024

Int. Res. J. multidiscip. Technovation

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Recently the formation of disasters like earthquakes, Tsunami, etc., are quite common in all parts of the world. Due to the disasters the existence of loss to property as well as human life is quite common and more to avoid/decrease the damage due to disasters, strengthening a structure is one parameter. Retrofitting is the use of revolutionary technology to reinforce the structural elements to resist the upcoming damage due to disaster. In this paper carbon fiber reinforced polymer strengthening is considered for retrofitting technique. Carbon fiber reinforced polymer sheets of 50 mm width are used and wrapped on the beams with four different orientations like 00, 450, 600 and 900. Experimentally ten beams are casted in which two beams are marked as control beams and in remaining eight beam, every two beams are used for each orientation. The beams are subjected to four-point loading, and the greatest deflections and cracks at the beam center are recorded. The beams are tested for flexural loading and studied different parameters like maximum deflection, maximum load, Initial crack load etc are compared. With an emphasis on RC beams specifically, the goal of this work is to close the current research gap by examining the behavior of fiber reinforced polymer orientation in concrete elements. A beam covered with 50 mm strips at a 45-degree angle produced better results than the remaining beams.

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“…Many researchers have studied the effects of construction waste on the behavior of concrete structural members, including beams, columns, deep beams, etc. Deep beams are considered as one of the D-regions [4][5][6][7][8][9], which are characterized by relatively high turbulence of the stress contour line that makes using the conventional Bernoulli equation result in unsafe prediction performance. Deep beams are used in multistory buildings and bridges in the form of "transfer beams".…”

Section: Introductionmentioning

confidence: 99%

New Model of Eco-Friendly Hybrid Deep Beams With Wastes of Crushed Concrete

Mohammed Shakir,

Alghazali

2023

Jurnal Teknologi

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This paper presents a new model of hybrid sustainable deep beams that include crushed coarse aggregates (RCA) in place of natural aggregates. RCA was in three replacement ratios: 0%, 50%, and 100%. Six specimens of deep beams have been tested experimentally under static loads and were divided into two groups: the first group contains three specimens made with conventional hybrid deep beam models with a top layer of normal strength concrete including steel fibers (SFC) and a bottom layer of RCA with the three replacement ratios. In addition, the second group contains three specimens made with the proposed arched hybrid model SFRC within the arch region and RCA in other regions of the beam. Results revealed that when adopting the proposed model rather than the conventional hybrid model, the capacity improved by 13.5%, 19.7%, and 19.1% for the three replacement ratios, respectively. While the flexural toughness improved by 25.2%, 51.1%, and 62.1%, respectively. Moreover, results showed that for the conventional model, the mode of failure changed from flexure to diagonal with increasing RCA content. Whereas for the proposed model, the mode was kept to a flexural trend regardless of the RCA content in the bottom layer. The suggested arrangement of hybridization may be utilized to produce sustainable precast deep beams that minimize the impact of the waste of construction materials on the environment.

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Rehabilitation of deteriorated reinforced self-consolidating concrete brackets and corbels using CFRP composites: diagnosis and treatment

Cited by 7 publications

References 19 publications

Carbon Fibre-Reinforced Polymer (CFRP) Composites in Civil Engineering Application—A Comprehensive Review

Carbon Fibre-Reinforced Polymer (CFRP) Composites in Civil Engineering Application—A Comprehensive Review

Identification of Optimum Retrofitting Approach for Strengthening RC Beams using CFRP Sheets

New Model of Eco-Friendly Hybrid Deep Beams With Wastes of Crushed Concrete

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