Study of Fly Ash-slag-based Geopolymer Mortar Exposed to High Temperature

Study of Fly Ash-slag-based Geopolymer Mortar Exposed to High Temperature | 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 Study of Fly Ash-slag-based Geopolymer Mortar Exposed to High Temperature 梦迪 王, zhengyang Zhang, zhuojie Niu, ping Xu, xiao Li This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3920052/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 Purpose: To investigate the effectof the admixtures of graphene oxide (GO) and red mud (RM) on the properties of fly ash-slag-based geopolymer mortar respectively and explore the causes of changes in the strength of geopolymers after exposure to high temperature. Methods: The orthogonal method was utilized to derive the optimum mix ratios of geopolymer mortar without the addition of GO or RM. GO at 0.05% or RM at 40% was added to the mixing ratios to study their effects on the mechanical properties of the geopolymer mortar at temperatures ranging from 25 to 900 ℃, respectively. Results: The addition of GO or RM can reduce the strength loss of geopolymer after exposure to high temperature. Conclusion: (1) The addition of GO or RM can reduce the degree of cracking of geopolymer mortar after exposure to high temperature to some extent. (1) The final strength of the geopolymer is a combination of the degree of reaction and high temperature damage. (3) The degree of sintering reaction inside the mortar specimens was more fully developed and a higher concentration of feldspar-like material was produced compared to that at the edges, which caused the interior to be grayish-black. Geopolymer High temperature Graphene oxide Red mud Microstructure Full Text 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-3920052","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":275502182,"identity":"010e93be-f07d-4be7-ad61-24372e203558","order_by":0,"name":"梦迪 王","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAyklEQVRIiWNgGAWjYBACNmbGBuOff9js+NmbDxCnhY+d+UAxYwNfsmTPsQTitMjxsyV8ZmyQY9xwI8eAWIfxGG4u3GHGLDkj5+ONNwx2croNhLUYG888k8bHz/N2s+UchmRjswOEtZgZ8LAdY5Zsz90mzcNwIHEbEVrMf/Cw/WfccCDnGbFa2BKMedvYGDecyGEjVgvzAcMZZ9hAgWxsOceACL/I9x9sMPhQAY7KhzfeVNjJEdSCAiR4iIwaZC2k6hgFo2AUjIIRAQC2/D4dxumfKQAAAABJRU5ErkJggg==","orcid":"","institution":"Henan Polytechnic University","correspondingAuthor":true,"prefix":"","firstName":"梦迪","middleName":"","lastName":"王","suffix":""},{"id":275502183,"identity":"a34c72cb-9e3c-4b3f-a7fa-69b650b88547","order_by":1,"name":"zhengyang Zhang","email":"","orcid":"","institution":"Henan Polytechnic University","correspondingAuthor":false,"prefix":"","firstName":"zhengyang","middleName":"","lastName":"Zhang","suffix":""},{"id":275502184,"identity":"df07f282-d71e-4de6-8bed-557313bc2113","order_by":2,"name":"zhuojie Niu","email":"","orcid":"","institution":"Henan Polytechnic University","correspondingAuthor":false,"prefix":"","firstName":"zhuojie","middleName":"","lastName":"Niu","suffix":""},{"id":275502185,"identity":"9b65fc86-702d-41c7-b962-209540271d4b","order_by":3,"name":"ping Xu","email":"","orcid":"","institution":"Henan Polytechnic University","correspondingAuthor":false,"prefix":"","firstName":"ping","middleName":"","lastName":"Xu","suffix":""},{"id":275502186,"identity":"2678bcc2-f520-4c60-9b05-a7fc9eba48e0","order_by":4,"name":"xiao Li","email":"","orcid":"","institution":"Henan Polytechnic University","correspondingAuthor":false,"prefix":"","firstName":"xiao","middleName":"","lastName":"Li","suffix":""}],"badges":[],"createdAt":"2024-02-02 07:46:21","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3920052/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3920052/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":56123961,"identity":"7c8c2114-f458-4ca4-839c-587903a095c8","added_by":"auto","created_at":"2024-05-08 21:06:15","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1503060,"visible":true,"origin":"","legend":"","description":"","filename":"StudyofGeopolymerMortarExposedtoHighTemperature1.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3920052/v1_covered_c05069cb-c21e-41ab-8933-7610ccb57f18.pdf"}],"financialInterests":"","formattedTitle":"Study of Fly Ash-slag-based Geopolymer Mortar Exposed to High Temperature","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Geopolymer, High temperature, Graphene oxide, Red mud, Microstructure","lastPublishedDoi":"10.21203/rs.3.rs-3920052/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3920052/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003e\u003cstrong\u003ePurpose: \u003c/strong\u003eTo investigate the effectof the admixtures of graphene oxide (GO) and red mud (RM) on the properties of fly ash-slag-based geopolymer mortar respectively and explore the causes of changes in the strength of geopolymers after exposure to high temperature.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eMethods: \u003c/strong\u003eThe orthogonal method was utilized to derive the optimum mix ratios of geopolymer mortar without the addition of GO or RM. GO at 0.05% or RM at 40% was added to the mixing ratios to study their effects on the mechanical properties of the geopolymer mortar at temperatures ranging from 25 to 900 ℃, respectively.\u0026nbsp;\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eResults: \u003c/strong\u003eThe addition of GO or RM can reduce the strength loss of geopolymer after exposure to high temperature. \u003cstrong\u003eConclusion:\u003c/strong\u003e (1) The addition of GO or RM can reduce the degree of cracking of geopolymer mortar after exposure to high temperature to some extent. (1) The final strength of the geopolymer is a combination of the degree of reaction and high temperature damage. 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