RILEM TC 275 - Moisture Buffer Value of vegetal concrete - Results of round-robin testing

RILEM TC 275 - Moisture Buffer Value of vegetal concrete - Results of round-robin testing | 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 RILEM TC 275 - Moisture Buffer Value of vegetal concrete - Results of round-robin testing florence collet, Stijn Mertens, Paulina Faria This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4530275/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 14 Jan, 2025 Read the published version in Materials and Structures → Version 1 posted 4 You are reading this latest preprint version Abstract The moisture buffering characterization of bio-based building materials and products is investigated to accurately define a test methodology, as previous studies have shown some discrepancies and difficulties for comparison. An industrial hemp concrete was selected. The applicability of the NORDTEST protocol, with complementary details, was assessed by two round robin tests (RRT) with seven participating laboratories to achieve robustness and validation. The first RRT specified a method for previously conditioning the specimens and identified that: the exchange surface widely impacted the MBV results; a lower MBV was found for molded surface; the moisture flux direction versus the compaction direction did not show a high impact on the results; climatic chambers with Peltier technology are less efficient in desorption phase; the impact of air velocity was not highlighted, as the air velocity was similar in all labs; the test can be performed with vertical or horizontal exchange surfaces. For the second RRT, the conditioning protocol was reduced and simplified but complementary details were provided: the exchange surface was molded and the moisture flux was perpendicular to the compaction direction; the necessity to well remove dust before sealing was emphasized; more caution was taken when sealing the other specimen surfaces. This RRT confirmed that the exchange surface finishing widely affects the MBV results and the less efficiency of climate chambers with Peltier technology. Moreover, it underlined the effect of air velocity. The results obtained following this more detailed protocol were comparable between laboratories, suggesting their robustness to assess MBV of bio-based products. Hemp concrete hygric characterization sorption desorption MBV protocol Full Text Cite Share Download PDF Status: Published Journal Publication published 14 Jan, 2025 Read the published version in Materials and Structures → Version 1 posted Reviewers agreed at journal 01 Jul, 2024 Reviewers invited by journal 01 Jul, 2024 Editor assigned by journal 06 Jun, 2024 First submitted to journal 04 Jun, 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-4530275","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":321131422,"identity":"b5748a87-5dd9-41ea-97cc-72736aa2a13b","order_by":0,"name":"florence collet","email":"data:image/png;base64,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","orcid":"https://orcid.org/0000-0002-7673-1972","institution":"University of Rennes: Universite de Rennes","correspondingAuthor":true,"prefix":"","firstName":"florence","middleName":"","lastName":"collet","suffix":""},{"id":321131423,"identity":"9f08f6f4-1d72-4b13-a5cc-1fd239a2ae5f","order_by":1,"name":"Stijn Mertens","email":"","orcid":"","institution":"Buildwise","correspondingAuthor":false,"prefix":"","firstName":"Stijn","middleName":"","lastName":"Mertens","suffix":""},{"id":321131424,"identity":"8a98d708-36d2-45df-9216-8bc6c154ca19","order_by":2,"name":"Paulina Faria","email":"","orcid":"","institution":"Universidade Nova de Lisboa Faculdade de Ciências e Tecnologia: Universidade Nova de Lisboa Faculdade de Ciencias e Tecnologia","correspondingAuthor":false,"prefix":"","firstName":"Paulina","middleName":"","lastName":"Faria","suffix":""}],"badges":[],"createdAt":"2024-06-04 21:18:33","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4530275/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4530275/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1617/s11527-024-02550-4","type":"published","date":"2025-01-14T15:56:57+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":74284462,"identity":"fccf78e5-3f7b-4764-b8ed-12f6f8b23179","added_by":"auto","created_at":"2025-01-20 16:06:11","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1328233,"visible":true,"origin":"","legend":"","description":"","filename":"RILEMTC275paper2MBV.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4530275/v1_covered_c2ab4a29-ba69-4194-8967-109c9eda37a8.pdf"}],"financialInterests":"","formattedTitle":"RILEM TC 275 - Moisture Buffer Value of vegetal concrete - Results of round-robin testing","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":true,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"materials-and-structures","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"maas","sideBox":"Learn more about [Materials and Structures](http://link.springer.com/journal/11527)","snPcode":"11527","submissionUrl":"https://www.editorialmanager.com/maas/default2.aspx","title":"Materials and Structures","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Hemp concrete, hygric characterization, sorption, desorption, MBV protocol","lastPublishedDoi":"10.21203/rs.3.rs-4530275/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4530275/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"The moisture buffering characterization of bio-based building materials and products is investigated to accurately define a test methodology, as previous studies have shown some discrepancies and difficulties for comparison. 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