{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,24]],"date-time":"2026-01-24T09:48:29Z","timestamp":1769248109596,"version":"3.49.0"},"reference-count":57,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2022,8,16]],"date-time":"2022-08-16T00:00:00Z","timestamp":1660608000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Portuguese Foundation for Science and Technology (\u201cFunda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia\u201d)","doi-asserted-by":"publisher","award":["SFRH\/BD\/114715\/2016"],"award-info":[{"award-number":["SFRH\/BD\/114715\/2016"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sustainability"],"abstract":"<jats:p>This paper addresses the changes in bitumen properties during multi-recycling cycles, both before and after ageing. The rheology of recovered bitumen was characterized using the dynamic shear rheometer. The softening point and penetration value were also determined. The analysis showed that the bitumen\u2019s properties could be recovered even after more than one recycling cycle. The bitumen recovered from the second recycling cycle presented an average reduction of 45% in terms of complex modulus when compared with the first recycling cycle. The bitumen from the RAP mixtures presented a similar susceptibility to ageing. The analysis clearly showed that RAP has the potential to be multi-recycled.<\/jats:p>","DOI":"10.3390\/su141610171","type":"journal-article","created":{"date-parts":[[2022,8,17]],"date-time":"2022-08-17T03:15:27Z","timestamp":1660706127000},"page":"10171","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Assessing RAP Multi-Recycling Capacity by the Characterization of Recovered Bitumen Using DSR"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4901-7618","authenticated-orcid":false,"given":"V\u00edtor","family":"Antunes","sequence":"first","affiliation":[{"name":"CERIS, Faculty of Engineering, Lus\u00f3fona University, Campo Grande 376, 1749-024 Lisbon, Portugal"}]},{"given":"Fernando","family":"Moreno","sequence":"additional","affiliation":[{"name":"Laboratory of Construction Engineering (LabIC.UGR), School of Civil Engineering (ETSICCP), University of Granada, Dr. Severo Ochoa s\/n, 18071 Granada, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1874-5129","authenticated-orcid":false,"given":"Maria","family":"Rubio-G\u00e1mez","sequence":"additional","affiliation":[{"name":"Laboratory of Construction Engineering (LabIC.UGR), School of Civil Engineering (ETSICCP), University of Granada, Dr. Severo Ochoa s\/n, 18071 Granada, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7940-2648","authenticated-orcid":false,"given":"Ana Cristina","family":"Freire","sequence":"additional","affiliation":[{"name":"LNEC\u2014Laborat\u00f3rio Nacional de Engenharia Civil, Av. do Brasil 101, 1700-066 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7131-7967","authenticated-orcid":false,"given":"Jos\u00e9","family":"Neves","sequence":"additional","affiliation":[{"name":"CERIS, Instituto Superior T\u00e9cnico da Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"453","DOI":"10.1016\/j.conbuildmat.2019.03.258","article-title":"A review on the effect of RAP recycling on bituminous mixtures properties and the viability of multi-recycling","volume":"211","author":"Antunes","year":"2019","journal-title":"Constr. Build. Mater."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Qiao, Y., Dawson, A.R., Parry, T., Flintsch, G., and Wang, W. (2020). Flexible Pavements and Climate Change: A Comprehensive Review and Implications. Sustainability, 12.","DOI":"10.3390\/su12031057"},{"key":"ref_3","unstructured":"EAPA (2014). Asphalt the 100% Recyclable Construction Product EAPA Position Paper, EAPA."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"230","DOI":"10.1016\/j.resconrec.2014.07.007","article-title":"100% recycled hot mix asphalt: A review and analysis","volume":"92","author":"Zaumanis","year":"2014","journal-title":"Resour. Conserv. Recycl."},{"key":"ref_5","first-page":"17","article-title":"Evaluation of Rejuvenator\u2019s Effectiveness with Conventional Mix Testing for 100% RAP Mixtures, TRB 2013","volume":"2370","author":"Zaumanis","year":"2013","journal-title":"Annu. Meet."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"39","DOI":"10.1080\/10298436.2014.893331","article-title":"Review of very high-content reclaimed asphalt use in plant-produced pavements: State of the art","volume":"16","author":"Zaumanis","year":"2014","journal-title":"Int. J. Pavement Eng."},{"key":"ref_7","first-page":"705","article-title":"AAPT Symposium: Investigating the aging mitigation capabilities of rejuvenators in high RAP mixtures using Black Space diagrams, binder rheology and mixture tests","volume":"84","author":"Mogawer","year":"2015","journal-title":"J. Assoc. Asph. Paving Technol."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"S127","DOI":"10.1080\/14680629.2019.1587492","article-title":"Ageing of rejuvenated bitumen in hot recycled bituminous mixtures: Influence of bitumen origin and additive type","volume":"20","author":"Bocci","year":"2019","journal-title":"Road Mater. Pavement Des."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"76","DOI":"10.1080\/14680629.2017.1304263","article-title":"Simulating repeated recycling of hot mix asphalt","volume":"18","author":"Hugener","year":"2017","journal-title":"Road Mater. Pavement Des."},{"key":"ref_10","unstructured":"Su, K., Hachiya, Y., and Maekawa, R. (2008, January 20\u201323). Laboratory investigation of possibility of re-recycling asphalt concretes. Proceedings of the 6th ICPT, Sapporo, Japan."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"920","DOI":"10.1080\/14680629.2015.1120683","article-title":"Study on the mechanism of the repeated asphalt ageing and recycling based on the macro-performance","volume":"17","author":"Zhang","year":"2015","journal-title":"Road Mater. Pavement Des."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"442","DOI":"10.1080\/14680629.2015.1029678","article-title":"New method to estimate the \u201cre-activated\u201d binder amount in recycled hot-mix asphalt","volume":"16","author":"Stimilli","year":"2015","journal-title":"Road Mater. Pavement Des."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1016\/j.conbuildmat.2018.05.154","article-title":"Evaluation of RAP binder mobilisation and blending efficiency in bituminous mixtures: An approach using ATR-FTIR and artificial aggregate","volume":"179","author":"Sreeram","year":"2018","journal-title":"Constr. Build. Mater."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1317","DOI":"10.1080\/10298436.2020.1799208","article-title":"Fundamental investigation of the interaction mechanism between new and aged binders in binder blends","volume":"23","author":"Sreeram","year":"2020","journal-title":"Int. J. Pavement Eng."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"502","DOI":"10.1016\/j.conbuildmat.2018.12.212","article-title":"Variability of rap binder mobilisation in hot mix asphalt mixtures","volume":"201","author":"Sreeram","year":"2019","journal-title":"Constr. Build. Mater."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"121511","DOI":"10.1016\/j.conbuildmat.2020.121511","article-title":"Investigating aged binder mobilization and performance of RAP mixtures for surface courses","volume":"271","author":"Antunes","year":"2020","journal-title":"Constr. Build. Mater."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"593","DOI":"10.1016\/j.conbuildmat.2018.10.169","article-title":"Understanding the bitumen ageing phenomenon: A review","volume":"192","author":"Navarro","year":"2018","journal-title":"Constr. Build. Mater."},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Tauste, R., Moreno-Navarro, F., Sol-S\u00e1nchez, M., and Rubio-G\u00e1mez, M.C. (2018). The Effect of the Nature of Rejuvenators on the Rheological Properties of Aged Asphalt Binders. RILEM Bookseries, Springer.","DOI":"10.1007\/978-3-030-00476-7_35"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"S3","DOI":"10.1080\/14680629.2019.1588150","article-title":"Rheological evaluation of asphalt blends at multiple rejuvenation and aging cycles","volume":"20","author":"Koudelka","year":"2019","journal-title":"Road Mater. Pavement Des."},{"key":"ref_20","first-page":"477","article-title":"Ageing of hot mix asphalt","volume":"68","author":"Androji","year":"2016","journal-title":"J. Croat. Assoc. Civ. Eng."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"5129260","DOI":"10.1155\/2018\/5129260","article-title":"Experimental Investigation on Asphalt Binders Ageing Behavior and Rejuvenating Feasibility in Multicycle Repeated Ageing and Recycling","volume":"2018","author":"Nie","year":"2018","journal-title":"Adv. Mater. Sci. Eng."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"188","DOI":"10.1016\/j.conbuildmat.2018.05.273","article-title":"The effects of laboratory ageing on rheological and fracture characteristics of different rubberised bitumens","volume":"180","author":"Subhy","year":"2018","journal-title":"Constr. Build. Mater."},{"key":"ref_23","first-page":"73","article-title":"Analysis of the influence of binder properties on the mechanical response of bituminous mixtures","volume":"18","year":"2015","journal-title":"Int. J. Pavement Eng."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"753","DOI":"10.1080\/10298436.2018.1508845","article-title":"Tecnico accelerated ageing (TEAGE)\u2014A new laboratory approach for bituminous mixture ageing simulation","volume":"21","author":"Crucho","year":"2020","journal-title":"Int. J. Pavement Eng."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1047","DOI":"10.1515\/ntrev-2022-0062","article-title":"Engineered nanocomposites in asphalt binders","volume":"11","author":"Cheraghian","year":"2022","journal-title":"Nanotechnol. Rev."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1016\/j.conbuildmat.2015.12.042","article-title":"Effect of the chemical composition of fillers in the filler\u2013bitumen interaction","volume":"104","author":"Antunes","year":"2016","journal-title":"Constr. Build. Mater."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"322","DOI":"10.1016\/j.conbuildmat.2014.12.008","article-title":"Influence of the geometrical and physical properties of filler in the filler\u2013bitumen interaction","volume":"76","author":"Antunes","year":"2015","journal-title":"Constr. Build. Mater."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"193","DOI":"10.1080\/14680629.2013.812836","article-title":"Evaluating the effect of rejuvenators on the degree of blending and performance of high RAP, RAS, and RAP\/RAS mixtures","volume":"14","author":"Mogawer","year":"2013","journal-title":"Road Mater. Pavement Des."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"121337","DOI":"10.1016\/j.conbuildmat.2020.121337","article-title":"Evaluation on the mechanical performance of recycled asphalt mixtures incorporated with high percentage of RAP and self-developed rejuvenators","volume":"269","author":"Zhang","year":"2020","journal-title":"Constr. Build. Mater."},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"McDaniel, R.S., Kowalski, K.K.J., and Shah, A.A. (2012). Evaluation of Reclaimed Asphalt Pavement for Surface Mixtures, Joint Transportation Research Program, Indiana Department of Transportation and Purdue University.","DOI":"10.5703\/1288284314665"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"1063","DOI":"10.1520\/JTE20130245","article-title":"The Influence of Binder Rheology on the Cracking of Asphalt Mixes in Airport and Highway Projects","volume":"42","author":"Rowe","year":"2014","journal-title":"J. Test. Eval."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"48","DOI":"10.3141\/1766-07","article-title":"Evaluation of Fatigue Criteria for Asphalt Binders","volume":"1766","author":"Anderson","year":"2001","journal-title":"Transp. Res. Rec. J. Transp. Res. Board"},{"key":"ref_33","first-page":"633","article-title":"Influence of Binder Loss Modulus on the Fatigue Performance","volume":"66","author":"Deacon","year":"1997","journal-title":"J. Assoc. Asph. Paving Technol."},{"key":"ref_34","unstructured":"Petersen, J.C., Robertson, R.E., Branthaver, J.F., Harnsberger, P.M., Duvall, J.J., Kim, S.S., Anderson, D.A., Christiansen, D.W., and Bahia, H.U. (2020, November 20). Binder Characterization and Evaluation. Available online: http:\/\/trid.trb.org\/view.aspx?id=405682."},{"key":"ref_35","doi-asserted-by":"crossref","unstructured":"Porot, L. (2018). Rheology and Bituminous Binder, A Review of Different Analyses. RILEM Bookseries, Springer.","DOI":"10.1007\/978-3-030-00476-7_9"},{"key":"ref_36","first-page":"324","article-title":"A comparative study of the influence of shift factor equations on master curve construction","volume":"4","author":"Nur","year":"2011","journal-title":"Int. J. Pavement Res. Technol."},{"key":"ref_37","first-page":"98","article-title":"Characteristics of the rheology of bitumens","volume":"38","author":"Jongepier","year":"1969","journal-title":"Proc. Assoc. Asph. Paving Technol."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"125","DOI":"10.3141\/2207-16","article-title":"Alternate Shift Factor Relationship for Describing Temperature Dependency of Viscoelastic Behavior of Asphalt Materials","volume":"2207","author":"Rowe","year":"2011","journal-title":"Transp. Res. Rec. J. Transp. Res. Board"},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"Pellinen, T.K., Witczak, M.W., and Bonaquist, R.F. (2003, January 2\u20135). Asphalt mix master curve construction using sigmoidal fitting function with non-linear least squares optimization. Proceedings of the 15th ASCE Engineering Mechanics Conference, New York, NY, USA.","DOI":"10.1061\/40709(257)6"},{"key":"ref_40","first-page":"123","article-title":"The dynamic mechanical properties of bitumen","volume":"38","author":"Dobson","year":"1969","journal-title":"Assoc. Asph. Paving Technol. Proc."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1080\/14680629.2006.9690059","article-title":"A mathematical-based master-curve construction method applied to complex modulus of bituminous materials","volume":"7","author":"Chailleux","year":"2006","journal-title":"Road Mater. Pavement Des."},{"key":"ref_42","unstructured":"Garcia, G., and Thompson, M. (2007). HMA Dynamic Modulus Predictive Models\u2014A Review, Illinois Center for Transportation."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"3701","DOI":"10.1021\/ja01619a008","article-title":"The Temperature Dependence of Relaxation Mechanisms in Amorphous Polymers and Other Glass-forming Liquids","volume":"77","author":"Williams","year":"1955","journal-title":"J. Am. Chem. Soc."},{"key":"ref_44","doi-asserted-by":"crossref","unstructured":"Rowe, G., Baumgardner, G., and Sharrock, M. (2009). Functional forms for master curve analysis of bituminous materials. Advanced Testing and Characterization of Bituminous Materials, Two Volume Set, CRC Press.","DOI":"10.1201\/9780203092989.ch9"},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"248","DOI":"10.1115\/1.3225812","article-title":"Computer-Aided Design of Polymers and Composites","volume":"107","author":"Kaelble","year":"1985","journal-title":"J. Eng. Mater. Technol."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1080\/14680629.2008.9690157","article-title":"Linear Viscoelastic Behaviour of Polyacrylate Binders and Bitumen Blends","volume":"9","author":"Airey","year":"2008","journal-title":"Road Mater. Pavement Des."},{"key":"ref_47","first-page":"393","article-title":"Development of a global aging system for short and long term aging of asphalt cements","volume":"64","author":"Mirza","year":"1995","journal-title":"J. Assoc. Asph. Paving"},{"key":"ref_48","unstructured":"Gordon, G., and Shaw, M. (1994). Computer Programs for Rheologists, Hanser\/Gardner."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"382","DOI":"10.1080\/14680629.2016.1267448","article-title":"Relaxation spectra of asphalt binders and the Christensen\u2013Anderson rheological model","volume":"18","author":"Christensen","year":"2017","journal-title":"Road Mater. Pavement Des."},{"key":"ref_50","unstructured":"AASHTO (2014). Mechanistic-Empirical Pavement Design Guide. A Manual of Practice, American Association of State Highway and Transportation Officials."},{"key":"ref_51","unstructured":"Rowe, G.M. (2012). Rheology Considerations for Recycled and Recovered Binder. Pavement Performance Prediction Symposium\u2014Binder Issues Affecting the Durability of RAP and WMA Pavements, Federal Highway Administration Washington, Westerm Research Institute, University of Wyoming Cpnference Center."},{"key":"ref_52","doi-asserted-by":"crossref","unstructured":"Rowe, G.M., and Sharrock, M.J. (2016, January 1\u20133). Cracking of asphalt pavements and the development of specifications with rheological measurements. Proceedings of the 6th Eurasphalt & Eurobitume Congress, Prague, Czech Republic.","DOI":"10.14311\/EE.2016.215"},{"key":"ref_53","unstructured":"AASHTO (2006). Mixture Conditioning of Hot Mix Asphalt (HMA), American Association of State Highway and Transportation Officials. AASHTO R 30-02."},{"key":"ref_54","unstructured":"(2018). Bituminous mixtures. Test methods\u2014Part 3: Bitumen Recovery: Rotary Evaporator (Standard No. CEN, EN 12697-3:2013+A1:2018)."},{"key":"ref_55","first-page":"414","article-title":"The rheological properties of asphaltic bitumens","volume":"22","author":"Pfeiffer","year":"1936","journal-title":"J. Inst. Pet."},{"key":"ref_56","doi-asserted-by":"crossref","unstructured":"Hunter, R., Self, A., and Read, J. (2015). The Shell Bitumen Handbook, ICE Publishing. [6th ed.].","DOI":"10.1680\/tsbh.58378"},{"key":"ref_57","unstructured":"Abatech Inc. (2011). Rheology Analysis Software Users Manual\u2014RHEA TM, Abatech Inc."}],"container-title":["Sustainability"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2071-1050\/14\/16\/10171\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:10:39Z","timestamp":1760141439000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2071-1050\/14\/16\/10171"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,8,16]]},"references-count":57,"journal-issue":{"issue":"16","published-online":{"date-parts":[[2022,8]]}},"alternative-id":["su141610171"],"URL":"https:\/\/doi.org\/10.3390\/su141610171","relation":{},"ISSN":["2071-1050"],"issn-type":[{"value":"2071-1050","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,8,16]]}}}