Publication detail

The Effects of Aging on Asphalt Binders Containing Visbreaking Residues

COUFALÍK, P. DAŠEK, O. COUFALÍKOVÁ, I. HÝZL, P.

Original Title

The Effects of Aging on Asphalt Binders Containing Visbreaking Residues

Type

conference paper

Language

English

Original Abstract

The quality and properties of asphalt binders are one of the most important factors that affect lifetime of asphalt roads. In refineries, visbreaking residues (VFCRs) are sometimes added to asphalt binders in variable ratios. VFCR addition can affect the overall properties of the manufactured binder, in particular resistance against aging. Using selected laboratory tests, this paper analyzes the effects of adding VFCRs to paving bitumens with a gradation of 160/220 on its properties (needle penetration, softening point, complex shear modulus and phase angle and creep stiffness and m-values). Also the effect of simulated aging of binders containing VFCRs on their properties has been tested. It was found that by increasing the VFCR content and the extent of aging, the binder stiffness increases. At higher VFCR ratios, the binder is more affected by aging at higher temperatures. Increased amount of VFCR also negatively affects low-temperature properties of the binder, which is related to its higher stiffness.

Keywords

Asphalt binder, visbreaking residues, VFCR, laboratory aging, DSR, BBR.

Authors

COUFALÍK, P.; DAŠEK, O.; COUFALÍKOVÁ, I.; HÝZL, P.

Released

12. 6. 2017

Publisher

Trans Tech Publications Ltd

Location

Switzerland

ISBN

978-3-0357-1033-5

Book

Engineering Materials and Technology

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

Year of study

737

State

Swiss Confederation

Pages from

541

Pages to

546

Pages count

6

URL

https://www.scientific.net/KEM.737.541

BibTex

@inproceedings{BUT132801,
  author="Pavel {Coufalík} and Ondřej {Dašek} and Iva {Coufalíková} and Petr {Hýzl}",
  title="The Effects of Aging on Asphalt Binders Containing Visbreaking Residues",
  booktitle="Engineering Materials and Technology",
  year="2017",
  journal="Key Engineering Materials (print)",
  volume="737",
  pages="541--546",
  publisher="Trans Tech Publications Ltd",
  address="Switzerland",
  doi="10.4028/www.scientific.net/KEM.737.541",
  isbn="978-3-0357-1033-5",
  issn="1013-9826",
  url="https://www.scientific.net/KEM.737.541"
}