Development and verification of a suitable methodology for stability assessment of bitumen adhesion promoters
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00300060" target="_blank" >RIV/68407700:21110/16:00300060 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68407700:21730/16:00300060
Výsledek na webu
<a href="http://guarant.topinfo.cz/ee2016/download/proceedings/data/c346.html" target="_blank" >http://guarant.topinfo.cz/ee2016/download/proceedings/data/c346.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/EE.2016.346" target="_blank" >10.14311/EE.2016.346</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Development and verification of a suitable methodology for stability assessment of bitumen adhesion promoters
Popis výsledku v původním jazyce
Since many years there has been a stress on using locally available resources which is for asphalt related mainly to the aggregates. On the other hand bitumen comes from a nonrenewable resource which is used to cover many demands of the world’s society. To keep it simple, remaining byproduct is then classified as bitumen what has of course impact on its qualities as well. In case of asphalt pavements durability is related to water and frost resistance of the mix. The water can cause problems if adsorbed by the aggregates. This happens if hydrophilic aggregates are used and the coating by bitumen is not good. For these reasons different additives are used to improve coating and turn the hydrophilic state to a hydrophobic one. Plenty of solutions are available on the market sometimes making the decision for not easy to make a right choice. Since decades test methods have been developed to study durability aspects, adhesion or water susceptibility. In many countries like the Czech Republic simple methods are still used, often based only on observer’s visual opinion and especially often qualifying only the status of a doped bitumen/mix when being produced. This is valid for all test methods defined in EN 12697-11 and similarly also in the national test method used in the Czech Republic. Based on this fact a research project was launched to ideally define a suitable test procedure for evaluating thermal stability and long-term activity of adhesion promoters if used in the bitumen and applied in a mix. This paper is describing how the test method was selected and evaluated, what are the principles the method is based on, if applicable only to the bitumen-aggregate coating quality or analyzing the water/water-frost impacts more. Results are given for the tests done and for assessment of different adhesion promoters. Test protocol is proposed at the end defining necessary conditions.
Název v anglickém jazyce
Development and verification of a suitable methodology for stability assessment of bitumen adhesion promoters
Popis výsledku anglicky
Since many years there has been a stress on using locally available resources which is for asphalt related mainly to the aggregates. On the other hand bitumen comes from a nonrenewable resource which is used to cover many demands of the world’s society. To keep it simple, remaining byproduct is then classified as bitumen what has of course impact on its qualities as well. In case of asphalt pavements durability is related to water and frost resistance of the mix. The water can cause problems if adsorbed by the aggregates. This happens if hydrophilic aggregates are used and the coating by bitumen is not good. For these reasons different additives are used to improve coating and turn the hydrophilic state to a hydrophobic one. Plenty of solutions are available on the market sometimes making the decision for not easy to make a right choice. Since decades test methods have been developed to study durability aspects, adhesion or water susceptibility. In many countries like the Czech Republic simple methods are still used, often based only on observer’s visual opinion and especially often qualifying only the status of a doped bitumen/mix when being produced. This is valid for all test methods defined in EN 12697-11 and similarly also in the national test method used in the Czech Republic. Based on this fact a research project was launched to ideally define a suitable test procedure for evaluating thermal stability and long-term activity of adhesion promoters if used in the bitumen and applied in a mix. This paper is describing how the test method was selected and evaluated, what are the principles the method is based on, if applicable only to the bitumen-aggregate coating quality or analyzing the water/water-frost impacts more. Results are given for the tests done and for assessment of different adhesion promoters. Test protocol is proposed at the end defining necessary conditions.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
JM - Inženýrské stavitelství
OECD FORD obor
—
Návaznosti výsledku
Projekt
<a href="/cs/project/TE01020168" target="_blank" >TE01020168: Centrum pro efektivní a udržitelnou dopravní infrastrukturu (CESTI)</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2016
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
Proceedings of 6th Eurasphalt & Eurobitume Congress,1st - 3rd June 2016
ISBN
978-80-01-05962-3
ISSN
—
e-ISSN
—
Počet stran výsledku
10
Strana od-do
—
Název nakladatele
Czech Technical University
Místo vydání
Prague
Místo konání akce
Praha
Datum konání akce
1. 6. 2016
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
—