Evaluation of sustainable asphalt mixtures with crumb rubber using cracking index

Evaluation of sustainable asphalt mixtures with crumb rubber using cracking index | 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 Evaluation of sustainable asphalt mixtures with crumb rubber using cracking index Ignacio Zapata Ferrero, Pablo Cabrera, Gerardo Botasso, Julián Rivera This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7573178/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 Fatigue in asphalt mixtures is one of the main failures that occur in flexible pavements. This problem is generated by the successive passage of vehicles and manifests itself on the rolling surface as cracks of short length. These fissures, when they reach a certain size, interconnect with each other to form a lattice that is commonly referred to as crocodile skin. This problem of pavements is not generated by reaching the ultimate strength of the material, but by exceeding the permissible tensile stress under repeated loads in the lower fiber of the asphalt layer. On the other hand, the inclusion of waste material is becoming increasingly necessary due to the large generation of waste. One of them is Crumb Tire Rubber (CTR) which is a suitable waste for use in the asphalt paving industry. The shredding of the tires to a millimeter size allows them to be used in this way. This condition ensures that the CTR is incorporated into the asphalt to form a homogeneous material that does not separate in its phases. The present work proposes the characterization of asphalts with 15 and 18% of CTR above the weight of asphalt in conjunction with the base asphalt, employing rheological analyses with short and long term aging. Subsequently, a dense asphalt mixture is designed with the previously mentioned asphalts to perform the Indirect Traction test and evaluate the results with cracking indices to estimate the fatigue in pavements. Finally, correlations are proposed between the parameters of the asphalt and the asphalt mixtures obtained, which show an acceptable relationship. Superior performance of asphalt mixtures with CTR can be seen through the cracking indices compared to the standard sample. Materials Engineering Asphalt Cracking End-of-Life Tire Rheology Fatigue 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. 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-7573178","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":512473135,"identity":"ca6bc227-f8d0-4976-a31b-181cb65cca2e","order_by":0,"name":"Ignacio Zapata 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This problem is generated by the successive passage of vehicles and manifests itself on the rolling surface as cracks of short length. These fissures, when they reach a certain size, interconnect with each other to form a lattice that is commonly referred to as crocodile skin. This problem of pavements is not generated by reaching the ultimate strength of the material, but by exceeding the permissible tensile stress under repeated loads in the lower fiber of the asphalt layer.\u003c/p\u003e\n\u003cp\u003eOn the other hand, the inclusion of waste material is becoming increasingly necessary due to the large generation of waste. One of them is Crumb Tire Rubber (CTR) which is a suitable waste for use in the asphalt paving industry. The shredding of the tires to a millimeter size allows them to be used in this way. This condition ensures that the CTR is incorporated into the asphalt to form a homogeneous material that does not separate in its phases.\u003c/p\u003e\n\u003cp\u003eThe present work proposes the characterization of asphalts with 15 and 18% of CTR above the weight of asphalt in conjunction with the base asphalt, employing rheological analyses with short and long term aging. Subsequently, a dense asphalt mixture is designed with the previously mentioned asphalts to perform the Indirect Traction test and evaluate the results with cracking indices to estimate the fatigue in pavements. Finally, correlations are proposed between the parameters of the asphalt and the asphalt mixtures obtained, which show an acceptable relationship. 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