Increasing the Content of Reclaimed Asphalt in Asphalt Mixture by using Rejuvenators

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00366909" target="_blank" >RIV/68407700:21110/23:00366909 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1755-1315/1196/1/012039" target="_blank" >https://doi.org/10.1088/1755-1315/1196/1/012039</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1755-1315/1196/1/012039" target="_blank" >10.1088/1755-1315/1196/1/012039</a>

Result language
angličtina
Original language name
Increasing the Content of Reclaimed Asphalt in Asphalt Mixture by using Rejuvenators
Original language description
Recycling pavements is beneficial on various levels, since using reclaimed asphalt (RA) has a positive effect on the economy and environmental protection at the same time. Removed old asphalt pavement is no longer considered as a waste material, which has to be landfilled, but a useful material for further applications. Leading to a reduction of the need for virgin materials and preserve the planet. At the start, RA was used for construction of embankments and unbound granular layers, later cold recycling became another effective solution. After years of experiments, the rate of RA has increased to reach even the 100 %. But typical RA content in hot asphalt mixtures is between 25 % to 40 %. The presence of RA in the asphalt mixture has a negative effect on the mixture properties. Two alternatives were used in order to soften the aged bitumen – use of softer binder or special additives, i.e., rejuvenators. This study evaluated the possibility of increasing the RA content (30 % and 50 %) in asphalt mixture by adding mainly bio-based alternative rejuvenators. Mechanical performance was evaluated by means of laboratory investigations for typical characteristics dedicated to durability, stiffness, and cracking potential.
Czech name
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Czech description
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Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
IOP Conference Series: Earth and Environmental Science, Volume 1196
ISBN
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ISSN
1755-1315
e-ISSN
1755-1315
Number of pages
11
Pages from-to
1-11
Publisher name
IOP Publishing Ltd.
Place of publication
Bristol
Event location
Thessaloniki
Event date
Mar 22, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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