Evaluation of an Asphalt Mixture Containing a High Content of Reclaimed Asphalt and Different Crumb Rubber Modified Binders

Recently, environmental concerns have become a primary driving force in most countries and industries dealing with natural resources. As a part of this category, asphalt pavement industry is trying to implement more green and sustainable features in its products, while maintaining the mechanical and...

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Main Authors: Belhaj Majda, Vacková Pavla, Valentin Jan
Format: Article
Language:English
Published: Sciendo 2021-09-01
Series:Slovak Journal of Civil Engineering
Subjects:
Online Access:https://doi.org/10.2478/sjce-2021-0018
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author Belhaj Majda
Vacková Pavla
Valentin Jan
author_facet Belhaj Majda
Vacková Pavla
Valentin Jan
author_sort Belhaj Majda
collection DOAJ
description Recently, environmental concerns have become a primary driving force in most countries and industries dealing with natural resources. As a part of this category, asphalt pavement industry is trying to implement more green and sustainable features in its products, while maintaining the mechanical and performance-based properties of the resulting asphalt mixtures. Among potential recycled materials, vehicle tires and aged asphalt pavement have been demonstrated to show economic, ecological, and behavioral improvements in the mixtures. However, mixtures with a high content of reclaimed asphalt (RA) and crumb rubber present some limitations. Therefore, using another group of additives, i.e., a warm mix asphalt (WMA) additive, has been considered. The presented paper investigates the use of an elevated content of RA with different crumb rubber modified binders and (in some mixtures) a warm mix additive in an asphalt concrete (AC) binder mix. Regular empirical tests have been conducted and more advanced performance or functional characteristics, i.e., stiffness, thermal induced cracking, resistance to permanent deformation, complex modulus have been determined and evaluated. Selected results are presented in the paper.
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spelling doaj.art-c06db0c73e114afdbee99e67697b60a72023-06-26T10:48:29ZengSciendoSlovak Journal of Civil Engineering1338-39732021-09-01293223010.2478/sjce-2021-0018Evaluation of an Asphalt Mixture Containing a High Content of Reclaimed Asphalt and Different Crumb Rubber Modified BindersBelhaj Majda0Vacková Pavla1Valentin Jan2Faculty of Civil Engineering, Czech Technical University in Prague, Czech RepublicFaculty of Civil Engineering, Czech Technical University in Prague, Czech RepublicFaculty of Civil Engineering, Czech Technical University in Prague, Czech RepublicRecently, environmental concerns have become a primary driving force in most countries and industries dealing with natural resources. As a part of this category, asphalt pavement industry is trying to implement more green and sustainable features in its products, while maintaining the mechanical and performance-based properties of the resulting asphalt mixtures. Among potential recycled materials, vehicle tires and aged asphalt pavement have been demonstrated to show economic, ecological, and behavioral improvements in the mixtures. However, mixtures with a high content of reclaimed asphalt (RA) and crumb rubber present some limitations. Therefore, using another group of additives, i.e., a warm mix asphalt (WMA) additive, has been considered. The presented paper investigates the use of an elevated content of RA with different crumb rubber modified binders and (in some mixtures) a warm mix additive in an asphalt concrete (AC) binder mix. Regular empirical tests have been conducted and more advanced performance or functional characteristics, i.e., stiffness, thermal induced cracking, resistance to permanent deformation, complex modulus have been determined and evaluated. Selected results are presented in the paper.https://doi.org/10.2478/sjce-2021-0018reclaimedasphaltcrumb rubber modified bindercrumb rubber
spellingShingle Belhaj Majda
Vacková Pavla
Valentin Jan
Evaluation of an Asphalt Mixture Containing a High Content of Reclaimed Asphalt and Different Crumb Rubber Modified Binders
Slovak Journal of Civil Engineering
reclaimedasphalt
crumb rubber modified binder
crumb rubber
title Evaluation of an Asphalt Mixture Containing a High Content of Reclaimed Asphalt and Different Crumb Rubber Modified Binders
title_full Evaluation of an Asphalt Mixture Containing a High Content of Reclaimed Asphalt and Different Crumb Rubber Modified Binders
title_fullStr Evaluation of an Asphalt Mixture Containing a High Content of Reclaimed Asphalt and Different Crumb Rubber Modified Binders
title_full_unstemmed Evaluation of an Asphalt Mixture Containing a High Content of Reclaimed Asphalt and Different Crumb Rubber Modified Binders
title_short Evaluation of an Asphalt Mixture Containing a High Content of Reclaimed Asphalt and Different Crumb Rubber Modified Binders
title_sort evaluation of an asphalt mixture containing a high content of reclaimed asphalt and different crumb rubber modified binders
topic reclaimedasphalt
crumb rubber modified binder
crumb rubber
url https://doi.org/10.2478/sjce-2021-0018
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AT vackovapavla evaluationofanasphaltmixturecontainingahighcontentofreclaimedasphaltanddifferentcrumbrubbermodifiedbinders
AT valentinjan evaluationofanasphaltmixturecontainingahighcontentofreclaimedasphaltanddifferentcrumbrubbermodifiedbinders