Resistance of asphalt binders to formation of frost cracks

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F16%3APU116197" target="_blank" >RIV/00216305:26110/16:PU116197 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.crcpress.com/Resources-Environment-and-Engineering-II-Proceedings-of-the-2nd-Technical/Xie/9781138028944" target="_blank" >https://www.crcpress.com/Resources-Environment-and-Engineering-II-Proceedings-of-the-2nd-Technical/Xie/9781138028944</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Resistance of asphalt binders to formation of frost cracks

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Resistance of asphalt binders to formation of frost cracks

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/TA03030381" target="_blank" >TA03030381: Nové zkušební metody asfaltových pojiv a směsí umožňující prodloužení životnosti asfaltových vozovek</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

Resources, Environment and Engineering II

ISBN

978-1-138-02894-4

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

83-90

Název nakladatele

CRC Press/Balkema

Místo vydání

The Netherlands

Místo konání akce

Hong Kong

Datum konání akce

25. 9. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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