Study on Rejuvenators and Their Effect on Performance Characteristics of an Asphalt Concrete Containing 30% Reclaimed Asphalt

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00358027" target="_blank" >RIV/68407700:21110/22:00358027 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/978-3-030-79801-7_4" target="_blank" >https://doi.org/10.1007/978-3-030-79801-7_4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-79801-7_4" target="_blank" >10.1007/978-3-030-79801-7_4</a>

Result language

angličtina

Original language name

Study on Rejuvenators and Their Effect on Performance Characteristics of an Asphalt Concrete Containing 30% Reclaimed Asphalt

Original language description

The use of reclaimed asphalt has become a common practice and necessity in many developed countries whereas there are several options how to deal with elevated content of such material. Well-developed are solutions where reclaimed asphalt is cold fed by up to 20 %. Higher portions of reclaimed asphalt are still challenging and need additional focus to become a regularly used standard. Quite common in last few years has been the use of rejuvenators, which are special chemical compounds helping to partly restore the degraded bitumen and secure sufficient performance behavior of asphalt mix containing higher portions of reclaimed asphalt. Recent study focused on use of several market-established rejuvenators and some newly developed variants, which are predominantly based on renewable materials. A typical asphalt concrete AC16 has been selected and 30 % virgin aggregate was replaced by reclaimed asphalt of 0/8 mm grading. A scenario with 50 % reclaimed asphalt was assessed too but is not part of this paper. Rejuvenators were added in a content between 5-7 % of the degraded bitumen content present in the reclaimed asphalt. Functional tests have been performed focusing on water susceptibility, deformation behavior (stiffness) and resistance to crack propagation. At the same time bitumen extracted from the reclaimed asphalt was mixed with rejuvenator and selected bitumen tests were performed to find or confirm potential relations between binder and asphalt mix behavior.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/8JCH1002" target="_blank" >8JCH1002: Compound rejuvenating effects on aged bitumen from reclaimed asphalt material by bio-waste additives</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Advances on Road Infrastructure and Mobility: Proceedings of the 18th International Road Federation World Meeting & Exhibition

ISBN

978-3-030-79800-0

ISSN

2366-3405

e-ISSN

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Number of pages

11

Pages from-to

46-56

Publisher name

Springer International Publishing AG

Place of publication

Cham

Event location

Dubai

Event date

Nov 8, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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