Corrosion assessment of ferrocement element with nanogeopolymer for marine application

Rajendran, M.

doi:10.1002/suco.202000783

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…While placing the coated rebar in the salt container for 30 days, it was observed that the coating attributed to lesser weight loss than the uncoated rebar. Similarly, Rajendran [11] conducted an experimental investigation to protect the meshing reinforcement of ferrocement panels from corrosion by incorporating nano-modifed fy ash-based geopolymer mortar. Te use of nano-geopolymer mortar on the ferrocement meshes ofers 3 times improved corrosion resistant behaviour and it was suggested mainly for marine applications.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistant Coating from Nano Printed Circuit Board Powder for the Reinforced Concrete Structures

Mohana¹,

Selvaganesh²,

Issac³

et al. 2023

Advances in Materials Science and Engineering

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Corrosion in steel leads to the deterioration of reinforced concrete structures due to chemical reactions between steel and its surrounding atmosphere. In this paper, a novel anticorrosive powder was derived from the waste Printed Circuit Board (PCB) and manually coated on the steel rebar of the reinforced concrete specimen. The corrosion-resistant efficiency of the developed nano PCB-coating on the steel bars was studied by polarization, electrochemical impedance spectroscopy, and accelerated corrosion technique. Also, the applicability of the nano PCB-coated rebar as reinforcement in the concrete environment was investigated. From the results, it was observed that the nano PCB-coated specimens exhibited 3.5 times reduced rate of corrosion and lost only 46.15% strength and 52.5% diameter under the accelerated rate of 6 V after 48 hours. The presence of nano PCB powder improved the corrosion-resistant behaviour of the steel rebar by 1.65 times of the noncoated specimen. Also, the nano PCB-coating reduced the loss in residual yield strength of the corroded steel rebar by 32% lesser than the noncoated specimens and exhibited similar corrosion-resistant properties as that of the existing zinc coating. In addition to the corrosion resistance, the nano PCB-coated steel rebar exhibited almost similar adhesion with concrete as that of the commercial zinc coating which is 7% lower than uncoated steel rebars. It was inferred from this research work that the proposed anticorrosive coating prepared from the waste nano PCB powder showed better corrosion-resistant behaviour and reduced the overall cost of coating by 42%, which ensures economy and serviceability.

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Section: Introductionmentioning

confidence: 99%

Corrosion Resistant Coating from Nano Printed Circuit Board Powder for the Reinforced Concrete Structures

Mohana¹,

Selvaganesh²,

Issac³

et al. 2023

Advances in Materials Science and Engineering

Self Cite

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“…The effect of alkaline solution molarity on crack propagation and corrosion behavior of geopolymer mortar covering steel mesh for marine environments [145]. The effect of calcium and alkalinity on the chloride diffusivity of geopolymer mortar [146].…”

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confidence: 99%

Scientometric Analysis of Global Research on the Utilization of Geopolymer Composites in Construction Applications

et al. 2023

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This study conducts a scientometric review on the use of geopolymer mortar and composites in different construction applications. It aims to analyze the findings of past research and reveal the research constituents, development trends, and knowledge gaps. The Scopus database was employed to retrieve the relevant publications, while Bibliometrix was used to conduct the statistical analyses. Results revealed a steady and gradual increase in the number of publications after 2013, as the annual growth rate increased from 23.9% to 45.2% between the timeframes 2003–2013 and 2014–2022, respectively. The analysis highlighted that many authors collaborated on different construction applications of geopolymers regardless of geographic location. Meanwhile, Construction and Building Materials, China, and Universiti Malaysia Perlis were found to be the predominant journal, country, and institution, respectively. The scientometric analysis showed that the most frequently investigated applications for geopolymer mortars and composites were fire resistance, corrosion protection, and repair. Research gaps highlighted that other applications are not as well investigated despite the promising performance of the geopolymer composites, including 3D printing, heavy metals absorption, environmental protection, and underwater applications. Future research is required to assess the use of other alumina and silica-rich binders in geopolymers while also exploring their lifecycle assessment and economic impact.

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Investigation of the flexural behavior of reinforced concrete beams strengthened with a composite reinforcement layer: Polyvinyl alcohol fiber‐reinforced ferrocement cementitious composite and steel wire mesh

Yang

Backer

et al. 2022

Structural Concrete

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To improve the flexural behavior of reinforced concrete (RC) beams, a new ferrocement composite material was proposed. A polyvinyl alcohol fiberreinforced ferrocement cementitious composite (PVA-RFCC) and steel wire mesh (SWM) were attached onto the soffit of the RC beams as a composite reinforcement layer (CRL). One control beam and four strengthened RC beams were investigated. The maximum load carrying capacity, initial stiffness, and displacement ductility parameter of the strengthened beams were up to 99.3%, 48.0%, and 90.9% higher than those of the control beam, respectively. The SWM2 accounted for 91.6% of these improvements. An analytical model was proposed to predict the flexural capacity of strengthened RC beams. The tensile force of the polyvinyl alcohol-engineered cementitious composite was considered and calculated by rectangular and triangular distributions. The predicted results were in good agreement with the experimental results, which validated the accuracy of the proposed model.

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Corrosion assessment of ferrocement element with nanogeopolymer for marine application

Cited by 5 publications

References 17 publications

Corrosion Resistant Coating from Nano Printed Circuit Board Powder for the Reinforced Concrete Structures

Corrosion Resistant Coating from Nano Printed Circuit Board Powder for the Reinforced Concrete Structures

Scientometric Analysis of Global Research on the Utilization of Geopolymer Composites in Construction Applications

Investigation of the flexural behavior of reinforced concrete beams strengthened with a composite reinforcement layer: Polyvinyl alcohol fiber‐reinforced ferrocement cementitious composite and steel wire mesh

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