Eco-Friendly Polysaccharide Inhibitors for Steel-Reinforced Concrete: Synergistic Corrosion Resistance and Structural Enhancement Using Welan and Neem Gums

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Abstract This Research investigation explores the viability of Welan gum (WG) and Neem gum (NG) as sustainable corrosion inhibitors for steel-reinforced concrete subjected to chloride exposure. Electrochemical impedance spectroscopy (EIS), Tafel polarization, scanning electron microscopy (SEM), and density functional theory (DFT) were employed to elucidate inhibition mechanisms and material performance. Both biopolymers formed protective films on steel surfaces, acting as mixed-type inhibitors by suppressing anodic and cathodic reactions. DFT simulations revealed reactive molecular sites enhancing adsorption, while mechanical testing indicated notable compressive (42.7 MPa with WG) and tensile strength (3.35 MPa) improvements. The study positions these polysaccharides as eco-conscious alternatives to synthetic inhibitors, merging corrosion mitigation with enhanced structural durability for sustainable infrastructure.
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Eco-Friendly Polysaccharide Inhibitors for Steel-Reinforced Concrete: Synergistic Corrosion Resistance and Structural Enhancement Using Welan and Neem Gums | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Eco-Friendly Polysaccharide Inhibitors for Steel-Reinforced Concrete: Synergistic Corrosion Resistance and Structural Enhancement Using Welan and Neem Gums Dr.Annaamalai M.G.L, K.Vijayakumar, Dr.N.Sharmiladevi, Dr.R.Prabhu This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6258727/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract This Research investigation explores the viability of Welan gum (WG) and Neem gum (NG) as sustainable corrosion inhibitors for steel-reinforced concrete subjected to chloride exposure. Electrochemical impedance spectroscopy (EIS), Tafel polarization, scanning electron microscopy (SEM), and density functional theory (DFT) were employed to elucidate inhibition mechanisms and material performance. Both biopolymers formed protective films on steel surfaces, acting as mixed-type inhibitors by suppressing anodic and cathodic reactions. DFT simulations revealed reactive molecular sites enhancing adsorption, while mechanical testing indicated notable compressive (42.7 MPa with WG) and tensile strength (3.35 MPa) improvements. The study positions these polysaccharides as eco-conscious alternatives to synthetic inhibitors, merging corrosion mitigation with enhanced structural durability for sustainable infrastructure. Civil Engineering Sustainable construction chloride-induced corrosion biopolymer admixtures reinforced concrete green materials Full Text Additional Declarations The authors declare potential competing interests as follows: Respected sir/mam, I hereby attached the Research manuscript for your Ready Reference for publishing the Article Thanking you Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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