Study on road performance of recycled aggregate asphalt mixture under water-temperature coupling effect

Study on road performance of recycled aggregate asphalt mixture under water-temperature coupling effect | 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 Article Study on road performance of recycled aggregate asphalt mixture under water-temperature coupling effect Zhenxia Li, Tengteng Guo, Chenze Fang, Yuanzhao Chen, Xingsai Su This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4836336/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 14 You are reading this latest preprint version Abstract To investigate the damage law of recycled aggregate asphalt mixtures under diverse water-temperature combinations and to enhance the working life of asphalt pavement, the article conducts a comparative study on the road performance of recycled aggregate asphalt mixtures under diverse water-temperature combinations. The optimum asphalt-aggregate ratio of recycled aggregate asphalt mixture was determined based on Marshall test; through the investigation of the actual water temperature conditions and traffic load, to determine the indoor test conditions under diverse water-temperature combinations; using indoor testing to analyze the road performance of recycled aggregate asphalt mixtures under diverse water-temperature combinations, to reveal the diverse water-temperature combinations of recycled aggregate asphalt mixtures of the damage law; with the help of scanning electron microscope and industrial CT test, analyze the micro-morphology and fine structure characteristics of recycled aggregate asphalt mixtures under diverse water-temperature combinations from the micro and fine viewpoints. The results indicate that the optimum oil-stone ratio of recycled aggregate asphalt mixture is 5.1%. High-temperature water bath indoor test conditions in the 60℃ constant temperature water bath box heat preservation for 10 days; freeze-thaw cycle indoor test conditions for the first specimen into the -18℃ refrigerator freezing 17.7h, and then put the specimen into the 60℃ constant temperature water bath box heat preservation 8.7h; dynamic water flushing indoor test conditions in the temperature of 35℃, the pressure for the role of the 200kPa, dynamic water flushing 2h. Asphalt mixture road performance with the increase of high temperature water bath time is a downward trend, in the high temperature water bath 15d when the mixture dynamic stability does not meet the specification requirements; asphalt mixture road performance with the increase in the number of freeze-thaw cycle gradually decreased, when the freeze-thaw cycle after 3 times the role of the mix of the maximum bending tensile strain does not meet the specification requirements; asphalt mixture road performance with the increase in the time of dynamic water flushing showed the first upward and then downward trend, and the road performance of the mixture is optimal when the dynamic water flushing is 2h. The asphalt mixture surface under the action of high temperature water bath 10d has a large area of aggregate exposure; freeze-thaw cycle under the action of one asphalt mixture skeleton structure loose, surface cracks; dynamic water flushing under the action of 2h asphalt mixture surface although there are small holes and cracks defects, but the overall structure of the more dense. Three kinds of water-temperature coupling under the action of the mixture void volume increases, the void ratio rises, there are a large number of specimen internal 0.1mm 3 below the tiny voids, and most of these damages occur in the specimen height of 0~10mm, 50mm~60mm range, the long-term water-temperature coupling effect on the mix of high-temperature stability and low-temperature resistance to cracking has a greater impact. Physical sciences/Engineering Physical sciences/Materials science Pavement materials Recycled aggregate asphalt mixture Water-temperature coupling Microscopic analysis Road performance Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 10 Feb, 2025 Reviews received at journal 25 Jan, 2025 Reviewers agreed at journal 23 Jan, 2025 Reviews received at journal 20 Jan, 2025 Reviewers agreed at journal 20 Jan, 2025 Reviewers agreed at journal 19 Jan, 2025 Reviews received at journal 05 Sep, 2024 Reviewers agreed at journal 12 Aug, 2024 Reviewers agreed at journal 12 Aug, 2024 Reviewers invited by journal 12 Aug, 2024 Editor assigned by journal 12 Aug, 2024 Editor invited by journal 12 Aug, 2024 Submission checks completed at journal 09 Aug, 2024 First submitted to journal 31 Jul, 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. 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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-4836336","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":348066206,"identity":"c517bac5-811c-40c4-8f0c-3173a83c078a","order_by":0,"name":"Zhenxia Li","email":"","orcid":"","institution":"North China University of Water Resources and Electric Power","correspondingAuthor":false,"prefix":"","firstName":"Zhenxia","middleName":"","lastName":"Li","suffix":""},{"id":348066208,"identity":"2c8d88b9-8e9b-47e6-941e-90f80d9962ee","order_by":1,"name":"Tengteng Guo","email":"","orcid":"","institution":"North China University of Water Resources and 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The optimum asphalt-aggregate ratio of recycled aggregate asphalt mixture was determined based on Marshall test; through the investigation of the actual water temperature conditions and traffic load, to determine the indoor test conditions under diverse water-temperature combinations; using indoor testing to analyze the road performance of recycled aggregate asphalt mixtures under diverse water-temperature combinations, to reveal the diverse water-temperature combinations of recycled aggregate asphalt mixtures of the damage law; with the help of scanning electron microscope and industrial CT test, analyze the micro-morphology and fine structure characteristics of recycled aggregate asphalt mixtures under diverse water-temperature combinations from the micro and fine viewpoints. The results indicate that the optimum oil-stone ratio of recycled aggregate asphalt mixture is 5.1%. High-temperature water bath indoor test conditions in the 60℃ constant temperature water bath box heat preservation for 10 days; freeze-thaw cycle indoor test conditions for the first specimen into the -18℃ refrigerator freezing 17.7h, and then put the specimen into the 60℃ constant temperature water bath box heat preservation 8.7h; dynamic water flushing indoor test conditions in the temperature of 35℃, the pressure for the role of the 200kPa, dynamic water flushing 2h. Asphalt mixture road performance with the increase of high temperature water bath time is a downward trend, in the high temperature water bath 15d when the mixture dynamic stability does not meet the specification requirements; asphalt mixture road performance with the increase in the number of freeze-thaw cycle gradually decreased, when the freeze-thaw cycle after 3 times the role of the mix of the maximum bending tensile strain does not meet the specification requirements; asphalt mixture road performance with the increase in the time of dynamic water flushing showed the first upward and then downward trend, and the road performance of the mixture is optimal when the dynamic water flushing is 2h. The asphalt mixture surface under the action of high temperature water bath 10d has a large area of aggregate exposure; freeze-thaw cycle under the action of one asphalt mixture skeleton structure loose, surface cracks; dynamic water flushing under the action of 2h asphalt mixture surface although there are small holes and cracks defects, but the overall structure of the more dense. Three kinds of water-temperature coupling under the action of the mixture void volume increases, the void ratio rises, there are a large number of specimen internal 0.1mm\u003csup\u003e3\u003c/sup\u003e below the tiny voids, and most of these damages occur in the specimen height of 0~10mm, 50mm~60mm range, the long-term water-temperature coupling effect on the mix of high-temperature stability and low-temperature resistance to cracking has a greater impact.\u003c/p\u003e","manuscriptTitle":"Study on road performance of recycled aggregate asphalt mixture under water-temperature coupling effect","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-09-04 04:07:04","doi":"10.21203/rs.3.rs-4836336/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2025-02-10T07:55:37+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-01-25T21:56:29+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"106869545578305010333308824361334868210","date":"2025-01-23T17:24:28+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-01-20T14:30:38+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"96529531216073069616432843069317390410","date":"2025-01-20T06:06:56+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"33664178936819466048580242187243654723","date":"2025-01-20T03:43:09+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-09-05T15:29:27+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"5121614092084301018610595144170424978","date":"2024-08-13T00:11:50+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"318430768696754750158744248408586355000","date":"2024-08-12T23:46:21+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2024-08-12T21:47:58+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2024-08-12T21:47:01+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"","date":"2024-08-12T16:53:24+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2024-08-09T04:49:01+00:00","index":"","fulltext":""},{"type":"submitted","content":"Scientific Reports","date":"2024-07-31T14:24:12+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"c0a50bae-0e77-436b-bffa-35739b88316d","owner":[],"postedDate":"September 4th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[{"id":36924418,"name":"Physical sciences/Engineering"},{"id":36924419,"name":"Physical sciences/Materials science"}],"tags":[],"updatedAt":"2025-04-15T06:38:30+00:00","versionOfRecord":[],"versionCreatedAt":"2024-09-04 04:07:04","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4836336","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4836336","identity":"rs-4836336","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}