Detail publikačního výsledku

Resistance of asphalt binders to formation of frost cracks

COUFALÍK, P.; DAŠEK, O.; HÝZL, P.; STEHLÍK, D.; KUDRNA, J.; KRČMOVÁ, I.; ŠPERKA, P.

Originální název

Resistance of asphalt binders to formation of frost cracks

Anglický název

Resistance of asphalt binders to formation of frost cracks

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Monitoring low-temperature properties of asphalt binders is fundamental for determining resistance of asphalt pavements to formation of frost cracks. This paper compares the properties of paving bitumen, two bitumens modified with various amount of crumb rub-ber (CRmB) and three bitumens with variable amount of SBS. Also a simulation of short-term and long-term ageing was performed in order to determine the resistance of these bi-tumens to the ageing process. The individual bitumens, including the effect of ageing, were compared using empirical tests, in particular the needle penetration test and the sof-tening point and also the relaxation test performed using dynamic shear rheometer (DSR). The results of this test for the individual bitumens were subsequently correlated with the results from bending beam rheometer (BBR). A strong correlation was found between the flexural creep stiffness and the maximum shear stress in DSR, between the m value and the area of the relaxation curve, and between the m-value and the residual shear stress.

Anglický abstrakt

Monitoring low-temperature properties of asphalt binders is fundamental for determining resistance of asphalt pavements to formation of frost cracks. This paper compares the properties of paving bitumen, two bitumens modified with various amount of crumb rub-ber (CRmB) and three bitumens with variable amount of SBS. Also a simulation of short-term and long-term ageing was performed in order to determine the resistance of these bi-tumens to the ageing process. The individual bitumens, including the effect of ageing, were compared using empirical tests, in particular the needle penetration test and the sof-tening point and also the relaxation test performed using dynamic shear rheometer (DSR). The results of this test for the individual bitumens were subsequently correlated with the results from bending beam rheometer (BBR). A strong correlation was found between the flexural creep stiffness and the maximum shear stress in DSR, between the m value and the area of the relaxation curve, and between the m-value and the residual shear stress.

Klíčová slova

Bitumen, Rheology, BBR, DSR, Crumb rubber modified bitumen, CRmB, Ageing, RTFOT

Klíčová slova v angličtině

Bitumen, Rheology, BBR, DSR, Crumb rubber modified bitumen, CRmB, Ageing, RTFOT

Autoři

COUFALÍK, P.; DAŠEK, O.; HÝZL, P.; STEHLÍK, D.; KUDRNA, J.; KRČMOVÁ, I.; ŠPERKA, P.

Rok RIV

2017

Vydáno

01.01.2016

Nakladatel

CRC Press/Balkema

Místo

The Netherlands

ISBN

978-1-138-02894-4

Kniha

Resources, Environment and Engineering II

Strany od

83

Strany do

90

Strany počet

7

URL

https://www.crcpress.com/Resources-Environment-and-Engineering-II-Proceedings-of-the-2nd-Technical/Xie/9781138028944

BibTex

@inproceedings{BUT118155,
  author="Pavel {Coufalík} and Ondřej {Dašek} and Petr {Hýzl} and Dušan {Stehlík} and Jan {Kudrna} and Iva {Coufalíková} and Pavel {Šperka}",
  title="Resistance of asphalt binders to formation of frost cracks",
  booktitle="Resources, Environment and Engineering II",
  year="2016",
  pages="83--90",
  publisher="CRC Press/Balkema",
  address="The Netherlands",
  isbn="978-1-138-02894-4",
  url="https://www.crcpress.com/Resources-Environment-and-Engineering-II-Proceedings-of-the-2nd-Technical/Xie/9781138028944"
}