Facile Characterization of Asphalt Modified Utilizing Thermoplastic Polymers

Facile Characterization of Asphalt Modified Utilizing Thermoplastic Polymers | 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 Facile Characterization of Asphalt Modified Utilizing Thermoplastic Polymers Ibrahim Mohamed mahmoud Nassar This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7620200/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 Various commercial thermoplastic polymers, including styrene-butadiene rubber (SBR), polyacrylonitrile (K), polystyrene (PS), polypropylene (PP), and polychloroprene (PC),are employed to modify two types of asphalt: asphalt 60/70 Suez (L) and asphalt 80/100 Alex (H). The optimal ratio of polymer additives, introduced using a hot mixing process at temperatures between 150°C and 170°C, was determined based on the measurements of penetration, softening point, penetration temperature susceptibility (PTS), and penetration index (PI) for the cooled blended formulations. For asphalt L, the ideal polymer-to-asphalt ratio was found to be 6% for SBR and PP, 9% for PS, and 12% for PC. In the case of asphalt H, the optimal ratio was 6% for SBR, 9% for PP and K, and 12% for PS and PC. Dynamic viscosity tests conducted using a rotational viscometer (RV 12) involved shearing the samples for five minutes at a high shear rate of 1198.08 s⁻¹ followed by ten minutes at a low shear rate of 149.76 s⁻¹ at temperatures ranging from 30°C to 60°C. These tests revealed that formulations LSBR and HSBR exhibited high yield stress values, suggesting promising potential for use in pavement applications. Additionally, formulations using asphalt H modified with SBR demonstrated superior tensile strength andthermal stability, maintaining performance at 250°C over a period of 150 hours. All polymer-modified asphalt samples demonstrated enhanced resistance to various application conditions compared to the unmodified base asphalt. Environmental Chemistry Asphalt modified thermoplastic polymers Dynamic viscosity Penetration Softening point Penetration Temperature Susceptibility (PTS) Full Text Additional Declarations The authors declare no competing interests. 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. 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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-7620200","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":515293444,"identity":"3bcf87de-3d8a-4411-97a2-252691c87d23","order_by":0,"name":"Ibrahim Mohamed mahmoud Nassar","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA7UlEQVRIiWNgGAWjYBADHgMGBjaGBAYbBgYJErWkEa+FAayFgeEwYS3m7Mcff/i5h0HGXPrwswcPc84n9s9uPviAocYmGpcWy54cM8meZww8ln1p5gaJ224nzrhzLNmA4VhabgMu9xzIYWPgOQD0yxkGMwmQloYbOWYSjA2HcWs5//zxxz9gLezfgFrOJc4nqOVGgoE0xBYekC0HEjcQ1vLGTFoGqMWyh6cMqCXZeOONtGSDBHx+OZ/++OObAwz25jzs2yR/brOTnXcj+eCDDzU2OLVAwX84yxGsMgG/clRgT4riUTAKRsEoGBkAAMKvXCAnlsn9AAAAAElFTkSuQmCC","orcid":"","institution":"Egyptian petroleum Research Institute","correspondingAuthor":true,"prefix":"","firstName":"Ibrahim","middleName":"Mohamed mahmoud","lastName":"Nassar","suffix":""}],"badges":[],"createdAt":"2025-09-15 11:52:39","currentVersionCode":1,"declarations":{"humanSubjects":false,"vertebrateSubjects":false,"conflictsOfInterestStatement":false,"humanSubjectEthicalGuidelines":false,"humanSubjectConsent":false,"humanSubjectClinicalTrial":false,"humanSubjectCaseReport":false,"vertebrateSubjectEthicalGuidelines":false},"doi":"10.21203/rs.3.rs-7620200/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7620200/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":91461793,"identity":"452ad4ab-031f-47e7-b26f-98d66884028f","added_by":"auto","created_at":"2025-09-16 17:24:34","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":589453,"visible":true,"origin":"","legend":"","description":"","filename":"file.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7620200/v1_covered_a4a561b4-19dd-4042-ba8d-1377aa27d77a.pdf"}],"financialInterests":"The authors declare no competing interests.","formattedTitle":"\u003cp\u003eFacile Characterization of Asphalt Modified Utilizing Thermoplastic Polymers\u003c/p\u003e","fulltext":[],"fulltextSource":"","fullText":"","funders":[{"identity":"782357f0-f961-4ad6-89fb-2951501b9e7e","identifier":"10.13039/501100002413","name":"Egyptian Petroleum Research Institute","awardNumber":"NA","order_by":0}],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":true,"highlight":"","institution":"Egyptian Petroleum Research Institute","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":"Asphalt modified, thermoplastic polymers, Dynamic viscosity, Penetration, Softening point, Penetration Temperature Susceptibility (PTS)","lastPublishedDoi":"10.21203/rs.3.rs-7620200/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7620200/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eVarious commercial thermoplastic polymers, including styrene-butadiene rubber (SBR), polyacrylonitrile (K), polystyrene (PS), polypropylene (PP), and polychloroprene (PC),are employed to modify two types of asphalt: asphalt 60/70 Suez (L) and asphalt 80/100 Alex (H). The optimal ratio of polymer additives, introduced using a hot mixing process at temperatures between 150°C and 170°C, was determined based on the measurements of penetration, softening point, penetration temperature susceptibility (PTS), and penetration index (PI) for the cooled blended formulations.\u003c/p\u003e\n\u003cp\u003eFor asphalt L, the ideal polymer-to-asphalt ratio was found to be 6% for SBR and PP, 9% for PS, and 12% for PC. In the case of asphalt H, the optimal ratio was 6% for SBR, 9% for PP and K, and 12% for PS and PC. Dynamic viscosity tests conducted using a rotational viscometer (RV 12) involved shearing the samples for five minutes at a high shear rate of 1198.08 s⁻¹ followed by ten minutes at a low shear rate of 149.76 s⁻¹ at temperatures ranging from 30°C to 60°C.\u003c/p\u003e\n\u003cp\u003eThese tests revealed that formulations LSBR and HSBR exhibited high yield stress values, suggesting promising potential for use in pavement applications. Additionally, formulations using asphalt H modified with SBR demonstrated superior tensile strength andthermal stability, maintaining performance at 250°C over a period of 150 hours. 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