Exploring the Impact of CO2 Sequestration on Plastic Properties, Mechanical Performance, and Microstructure of Concrete

Exploring the Impact of CO2 Sequestration on Plastic Properties, Mechanical Performance, and Microstructure of Concrete | 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 Exploring the Impact of CO2 Sequestration on Plastic Properties, Mechanical Performance, and Microstructure of Concrete Clinton Pereira, Rishi Gupta This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5189786/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 16 You are reading this latest preprint version Abstract In view of global warming, carbon sequestration techniques are being employed across the globe to minimize the damaging impact of greenhouse gases on the environment. Findings of ongoing research have shown that adding CO 2 during the mixing or curing stage of concrete enhances its mechanical properties. The purpose of this study is to examine the effect of CO 2 addition during the mixing stage on the initial hydration and mechanical properties of concrete. Various CO₂ dosages, ranging from 0.1–1%, were injected during mixing to analyze fresh and hardened properties of concrete, and the test results were compared with the control mix. CO 2 primarily reacts with calcium hydroxide in concrete to form calcium carbonate, thereby densifying its microstructure and improving its compressive strength by 10–20%. Thermal Pyrolysis tests, microscopy and infrared spectroscopy analysis indicated the presence of CaCO₃, thereby confirming the carbonation process. However, CO 2 dosages above 0.5% by weight of cement resulted in a drop in the workability of fresh concrete, which was rectified by an additional dose of superplasticizer. The present research attempts to create a simplified CO 2 sequestration process in concrete, develop a predictive model to estimate the compressive strength and use basic characterization techniques to identify the mineralization process. Findings from this research will provide simplified solutions to the construction industry that plans to implement CO 2 sequestration in concrete. CO₂ sequestration Accelerated carbonation Carbon capture utilization and storage Nanosized calcium carbonate Sustainable development. Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 11 Nov, 2024 Reviews received at journal 26 Oct, 2024 Reviews received at journal 25 Oct, 2024 Reviews received at journal 23 Oct, 2024 Reviews received at journal 22 Oct, 2024 Reviewers agreed at journal 22 Oct, 2024 Reviews received at journal 20 Oct, 2024 Reviewers agreed at journal 20 Oct, 2024 Reviewers agreed at journal 19 Oct, 2024 Reviewers agreed at journal 19 Oct, 2024 Reviewers agreed at journal 17 Oct, 2024 Reviewers agreed at journal 17 Oct, 2024 Reviewers invited by journal 12 Oct, 2024 Editor assigned by journal 11 Oct, 2024 Submission checks completed at journal 10 Oct, 2024 First submitted to journal 01 Oct, 2024 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-5189786","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":376706794,"identity":"0acf010e-e18c-4b95-8073-21221ba1eb9c","order_by":0,"name":"Clinton Pereira","email":"","orcid":"","institution":"University of Victoria","correspondingAuthor":false,"prefix":"","firstName":"Clinton","middleName":"","lastName":"Pereira","suffix":""},{"id":376706795,"identity":"3c6de330-0b8e-43e9-95a2-4cbfdf4af0c7","order_by":1,"name":"Rishi Gupta","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAsElEQVRIiWNgGAWjYPACGwYGZhKUMzYwMKSRruUwCerlI3KPP/i553zihuPMDxh+1BChxfBGXmJjz7PbiRsOsxkw9hwjRsuMHMMGngO3E2c28wC9w0aklsY/B85BtfwjQou8RI5hM8+BA4n9zEAtjG1EaDHgeZc4W+ZAsnE/M5vBwd4+Ymxpzz3w8c0BO9k2/sMPH/z4RowtB3gQnANEaADa0sBDWNEoGAWjYBSMcAAAZQU2qn+WoJkAAAAASUVORK5CYII=","orcid":"","institution":"University of Victoria","correspondingAuthor":true,"prefix":"","firstName":"Rishi","middleName":"","lastName":"Gupta","suffix":""}],"badges":[],"createdAt":"2024-10-01 21:53:11","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-5189786/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-5189786/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":69934302,"identity":"b3643777-f1a9-4664-92ac-ca64583ef725","added_by":"auto","created_at":"2024-11-26 18:32:48","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1593716,"visible":true,"origin":"","legend":"","description":"","filename":"CO2sequestrationinconcreteClintonPereiraRishiGupta.pdf","url":"https://assets-eu.researchsquare.com/files/rs-5189786/v1_covered_780c7468-48c8-462f-a9b4-a4e252ab4a09.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Exploring the Impact of CO2 Sequestration on Plastic Properties, Mechanical Performance, and Microstructure of Concrete","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"discover-civil-engineering","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"","sideBox":"Learn more about [Discover Civil Engineering](https://www.springer.com/journal/44290)","snPcode":"44290","submissionUrl":"https://submission.nature.com/new-submission/44290","title":"Discover Civil Engineering","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Discover Series","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"CO₂ sequestration, Accelerated carbonation, Carbon capture utilization and storage, Nanosized calcium carbonate, Sustainable development.","lastPublishedDoi":"10.21203/rs.3.rs-5189786/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-5189786/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn view of global warming, carbon sequestration techniques are being employed across the globe to minimize the damaging impact of greenhouse gases on the environment. Findings of ongoing research have shown that adding CO\u003csub\u003e2\u003c/sub\u003e during the mixing or curing stage of concrete enhances its mechanical properties. The purpose of this study is to examine the effect of CO\u003csub\u003e2\u003c/sub\u003e addition during the mixing stage on the initial hydration and mechanical properties of concrete. Various CO₂ dosages, ranging from 0.1\u0026ndash;1%, were injected during mixing to analyze fresh and hardened properties of concrete, and the test results were compared with the control mix. CO\u003csub\u003e2\u003c/sub\u003e primarily reacts with calcium hydroxide in concrete to form calcium carbonate, thereby densifying its microstructure and improving its compressive strength by 10\u0026ndash;20%. Thermal Pyrolysis tests, microscopy and infrared spectroscopy analysis indicated the presence of CaCO₃, thereby confirming the carbonation process. However, CO\u003csub\u003e2\u003c/sub\u003e dosages above 0.5% by weight of cement resulted in a drop in the workability of fresh concrete, which was rectified by an additional dose of superplasticizer. The present research attempts to create a simplified CO\u003csub\u003e2\u003c/sub\u003e sequestration process in concrete, develop a predictive model to estimate the compressive strength and use basic characterization techniques to identify the mineralization process. Findings from this research will provide simplified solutions to the construction industry that plans to implement CO\u003csub\u003e2\u003c/sub\u003e sequestration in concrete.\u003c/p\u003e","manuscriptTitle":"Exploring the Impact of CO2 Sequestration on Plastic Properties, Mechanical Performance, and Microstructure of Concrete","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-11-26 18:24:38","doi":"10.21203/rs.3.rs-5189786/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2024-11-11T14:20:51+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-10-26T04:51:43+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-10-25T19:11:54+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-10-23T16:42:46+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-10-22T14:12:47+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"88888631161598021418371618677070824418","date":"2024-10-22T13:50:03+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-10-21T00:37:24+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"32834665626463525906133485341095356995","date":"2024-10-20T14:55:01+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"15688257384848145822986823719293198061","date":"2024-10-19T16:16:51+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"94247065838204344007513820648037671228","date":"2024-10-19T13:17:04+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"231367976870829193103619264234269429539","date":"2024-10-17T23:41:40+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"135551694246109462246929644619557906823","date":"2024-10-17T08:04:06+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2024-10-12T07:09:54+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2024-10-11T14:08:12+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2024-10-10T10:30:06+00:00","index":"","fulltext":""},{"type":"submitted","content":"Discover Civil Engineering","date":"2024-10-01T21:50:04+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"discover-civil-engineering","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"","sideBox":"Learn more about [Discover Civil Engineering](https://www.springer.com/journal/44290)","snPcode":"44290","submissionUrl":"https://submission.nature.com/new-submission/44290","title":"Discover Civil Engineering","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Discover Series","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"63b162fb-7ebe-44f0-9dba-b83d455a6ad9","owner":[],"postedDate":"November 26th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[],"tags":[],"updatedAt":"2024-12-11T06:53:14+00:00","versionOfRecord":[],"versionCreatedAt":"2024-11-26 18:24:38","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-5189786","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-5189786","identity":"rs-5189786","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}