Neem Gum as a Green Concrete Additive: Optimizing Structural Integrity and Environmental Sustainability

Neem Gum as a Green Concrete Additive: Optimizing Structural Integrity and Environmental Sustainability | 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 Neem Gum as a Green Concrete Additive: Optimizing Structural Integrity and Environmental Sustainability Annaamalai MGL, K.Vijayakumar, Dr.R.Prabhu, Dr.N.Sharmiladevi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6251580/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 explores the application of Azadirachta indica (neem) gum, a biopolymer, as a sustainable additive in cement-based composites. Evaluated across dosages of 0–1.6% (by cement weight), neem gum demonstrated dual functionality as a setting retardant and water-reducing agent. Experimental results revealed a 38% increase in slump (65 mm to 90 mm) and a 30% extension in final setting time (280 to 365 minutes), enhancing workability. While compressive strength showed marginal declines, flexural and split tensile strengths improved by 10% (8.55 N/mm²) and 12% (4.95 N/mm²), respectively, at 90 days. Durability assessments highlighted a 32% reduction in corrosion rates (0.055 mm/year) and superior chloride resistance, attributed to neem gum’s alkaloids and saponins. This study positions neem gum as a cost-effective, eco-conscious alternative to synthetic admixtures, particularly in corrosive environments. Civil Engineering Bio-polymer admixture Corrosion mitigation Sustainable infrastructure Hydration kinetics Agro-waste valorization Full Text Additional Declarations The authors declare potential competing interests as follows: respected sir/mam, i hereby attached the manuscript for your ready reference for publishing the article 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. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6251580","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":430394990,"identity":"06b02dcb-849f-4283-9528-d7dd1247c3ff","order_by":0,"name":"Annaamalai 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