Rejuvenator influence on aged binder material properties

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F16%3APU120987" target="_blank" >RIV/00216305:26110/16:PU120987 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.730.380" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.730.380</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.730.380" target="_blank" >10.4028/www.scientific.net/KEM.730.380</a>

Result language

angličtina

Original language name

Rejuvenator influence on aged binder material properties

Original language description

As the amount of reclaimed asphalt pavement (RAP) material used in asphalt mixtures has increased recently, it is vital to address problems regarding aged binder incorporated in RAP. Asphalt binder hardens during its production process as well as during service life of pavements. External influences such as oxygen and ultraviolet radiation affect greatly bitumen characteristics. Thanks to adding rejuvenating agents, the original binder properties should be recovered and resulting asphalt binder parameters should become equal to those measured upon the reference material. In this study, four different rejuvenator agents and one neat soft binder were employed to rejuvenate the artificially aged binder by a complete blending between both constituents. Thereafter, empirical as well as performance based binder properties were examined with a dynamic shear rheometer (DSR) and with a bending beam rheometer (BBR). Three different dosages of each rejuvenator were added to evaluate the required amount for the original binder properties to be restored. Moreover, the softening efficiency of each agent was assessed by means of the Ring and Ball test. Finally, the optimum amount of each rejuvenator needed for the blend to achieve the target specification was determined. It can be concluded that the rejuvenators affect binder properties greatly, and mainly in a positive way. However, the data also indicate significant discrepancies between the types of the rejuvenator.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/LO1408" target="_blank" >LO1408: AdMaS UP – Advanced Building Materials, Structures and Technologies</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

2016

Confidentiality

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

Article name in the collection

Innovative Materials: Engineering and Application II

ISBN

978-3-03835-783-4

ISSN

1662-9795

e-ISSN

—

Number of pages

10

Pages from-to

380-389

Publisher name

Neuveden

Place of publication

neuveden

Event location

Hong Kong

Event date

Aug 19, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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