Thermal characterization of adobes stabilized with natural fibers, Hyperrhénia Hirta and Stipa Offneri, using the asymmetric hot plate method coupled with the quadripolar formalism

Thermal characterization of adobes stabilized with natural fibers, Hyperrhénia Hirta and Stipa Offneri, using the asymmetric hot plate method coupled with the quadripolar formalism | 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 Thermal characterization of adobes stabilized with natural fibers, Hyperrhénia Hirta and Stipa Offneri, using the asymmetric hot plate method coupled with the quadripolar formalism B. Zra Mha, M. Dawoua Kaoutoing, V. Doko, G.E. Ntamack This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6132960/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 11 You are reading this latest preprint version Abstract The present study aims to thermally characterize adobes stabilized with natural fibers. The fibers of Hyperrhénia Hirta and Stipa Offneri are empirically mixed with laterite for the production of adobes, particularly in Kila, in the Mogodé district, located in the Far North of Cameroon. Scientific data regarding the impact of these fibers on the thermal properties of adobes remain limited. For the experiments, soil collected from an adobe production area in Mogodé was mixed with different proportions of fibers, ranging from 0–1% in increments of 0.2%, to produce specimens with dimensions of 10×10×3 cm³. The asymmetric hot plate method coupled with the quadripole formalism was utilized for measuring the thermal characteristics of the samples. The results show that the incorporation of these fibers contributes to improving the thermal properties of the earthen blocks. A significant decrease in thermal conductivity was observed with increasing fiber content, reaching a reduction of 33.8% for Hyperrhénia Hirta fibers and 43% for Stipa Offneri fibers. The other thermal properties (diffusivity, effusivity, and volumetric heat capacity) change in the opposite direction with increasing fiber content, confirming the enhancement of the thermal performance of the adobes. These results suggest that adobes stabilized with these fibers possess strong potential as thermal insulation materials. Consequently, these fibers could be used effectively in areas with high temperatures, particularly in the Far North of Cameroon. Adobes Natural fibers Hyperrhénia Hirta Stipa Offneri Thermal characterization Asymmetric hot plate method Quadripole formalism Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 13 Apr, 2025 Reviews received at journal 03 Apr, 2025 Reviewers agreed at journal 31 Mar, 2025 Reviews received at journal 30 Mar, 2025 Reviewers agreed at journal 29 Mar, 2025 Reviewers agreed at journal 28 Mar, 2025 Reviewers agreed at journal 28 Mar, 2025 Reviewers invited by journal 22 Mar, 2025 Editor assigned by journal 15 Mar, 2025 Submission checks completed at journal 15 Mar, 2025 First submitted to journal 01 Mar, 2025 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-6132960","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":435857808,"identity":"fad36b74-def7-4437-b387-6c06e0e02aff","order_by":0,"name":"B. 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The fibers of Hyperrh\u0026eacute;nia Hirta and Stipa Offneri are empirically mixed with laterite for the production of adobes, particularly in Kila, in the Mogod\u0026eacute; district, located in the Far North of Cameroon. Scientific data regarding the impact of these fibers on the thermal properties of adobes remain limited. For the experiments, soil collected from an adobe production area in Mogod\u0026eacute; was mixed with different proportions of fibers, ranging from 0\u0026ndash;1% in increments of 0.2%, to produce specimens with dimensions of 10\u0026times;10\u0026times;3 cm\u0026sup3;. The asymmetric hot plate method coupled with the quadripole formalism was utilized for measuring the thermal characteristics of the samples. The results show that the incorporation of these fibers contributes to improving the thermal properties of the earthen blocks. A significant decrease in thermal conductivity was observed with increasing fiber content, reaching a reduction of 33.8% for Hyperrh\u0026eacute;nia Hirta fibers and 43% for Stipa Offneri fibers. The other thermal properties (diffusivity, effusivity, and volumetric heat capacity) change in the opposite direction with increasing fiber content, confirming the enhancement of the thermal performance of the adobes. These results suggest that adobes stabilized with these fibers possess strong potential as thermal insulation materials. Consequently, these fibers could be used effectively in areas with high temperatures, particularly in the Far North of Cameroon.\u003c/p\u003e","manuscriptTitle":"Thermal characterization of adobes stabilized with natural fibers, Hyperrhénia Hirta and Stipa Offneri, using the asymmetric hot plate method coupled with the quadripolar formalism","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-03-31 07:01:11","doi":"10.21203/rs.3.rs-6132960/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2025-04-13T20:20:45+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-04-03T12:43:49+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"146097948947685868504317065640237442561","date":"2025-03-31T06:34:51+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-03-30T06:53:44+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"338161612760754998412673489918946295949","date":"2025-03-29T12:54:07+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"190278906246218986714117026401023275390","date":"2025-03-28T13:03:29+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"147891354474372150343931129944123293622","date":"2025-03-28T06:26:21+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2025-03-22T05:59:48+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2025-03-15T09:10:54+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2025-03-15T09:09:36+00:00","index":"","fulltext":""},{"type":"submitted","content":"Discover Applied Sciences","date":"2025-03-01T06:41:50+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"discover-applied-sciences","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"","sideBox":"Learn more about [Discover Applied Sciences](https://link.springer.com/journal/42452)","snPcode":"42452","submissionUrl":"https://submission.springernature.com/new-submission/42452/3","title":"Discover Applied Sciences","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Discover Series","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"958ee2bf-bb23-47bd-9350-56f3a074526a","owner":[],"postedDate":"March 31st, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[],"tags":[],"updatedAt":"2025-06-11T12:23:17+00:00","versionOfRecord":[],"versionCreatedAt":"2025-03-31 07:01:11","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-6132960","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-6132960","identity":"rs-6132960","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}