Experience with designing and in-situ verification of cold emulsified mixes in the Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00232737" target="_blank" >RIV/68407700:21110/15:00232737 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1201/b18538-121" target="_blank" >http://dx.doi.org/10.1201/b18538-121</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1201/b18538-121" target="_blank" >10.1201/b18538-121</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experience with designing and in-situ verification of cold emulsified mixes in the Czech Republic

Popis výsledku v původním jazyce

The presented paper will summarize results of experimental research done by the Czech Technical University in Prague in the field of developing sound design method and ongoing assessment of designed and tested cold emulsified mixes. The objective of this activity was to monitor and evaluate selected physical and mechanical properties of the mixes as well as performance based testing (such as stiffness, rutting resistance) in relation to the methodology of mix and test specimens´ preparation. Nevertheless the real behaviour of a mix in a pavement structure cannot be fully and exactly cut up by laboratory tests, therefore in the next step to gain additional experimental data more than 1.5 km long trial section was prepared. The aim of the project was to verify on a suitable road section within the road network in CZ cold emulsified mix technology as a part of a standard pavement structure. For this pavement original structure and dimensions were known, as well as its overall technical condition and real traffic loading. Therefore it is possible for the near future to monitor the behaviour of this technology under real traffic loading and climatic conditions. Selected rural road was of low traffic category road III/44441. Because of its bad technical condition and necessary reconstruction the base layer was firstly in-situ cold recycled. Aggregates for the emulsified mixes were taken from a local quarry and the used emulsion (slow-breaking cationic bituminous emulsion C60B7) was designed exactly for this type of aggregates in close cooperation with MeadWestVaco. Used emulsifier and its content were optimized with respect to final mix quality and good workability. Trial job site was divided in 6 sections with 5 different pavement structure compositions, which should check the designed cold emulsified mixes in wearing as well as in binder course. The analysis of so far gained findings and results are presented in the paper.

Název v anglickém jazyce

Experience with designing and in-situ verification of cold emulsified mixes in the Czech Republic

Popis výsledku anglicky

The presented paper will summarize results of experimental research done by the Czech Technical University in Prague in the field of developing sound design method and ongoing assessment of designed and tested cold emulsified mixes. The objective of this activity was to monitor and evaluate selected physical and mechanical properties of the mixes as well as performance based testing (such as stiffness, rutting resistance) in relation to the methodology of mix and test specimens´ preparation. Nevertheless the real behaviour of a mix in a pavement structure cannot be fully and exactly cut up by laboratory tests, therefore in the next step to gain additional experimental data more than 1.5 km long trial section was prepared. The aim of the project was to verify on a suitable road section within the road network in CZ cold emulsified mix technology as a part of a standard pavement structure. For this pavement original structure and dimensions were known, as well as its overall technical condition and real traffic loading. Therefore it is possible for the near future to monitor the behaviour of this technology under real traffic loading and climatic conditions. Selected rural road was of low traffic category road III/44441. Because of its bad technical condition and necessary reconstruction the base layer was firstly in-situ cold recycled. Aggregates for the emulsified mixes were taken from a local quarry and the used emulsion (slow-breaking cationic bituminous emulsion C60B7) was designed exactly for this type of aggregates in close cooperation with MeadWestVaco. Used emulsifier and its content were optimized with respect to final mix quality and good workability. Trial job site was divided in 6 sections with 5 different pavement structure compositions, which should check the designed cold emulsified mixes in wearing as well as in binder course. The analysis of so far gained findings and results are presented in the paper.

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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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)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

Bituminous Mixtures and Pavements VI

ISBN

978-1-138-02866-1

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

849-858

Název nakladatele

Taylor & Francis/Balkema

Místo vydání

Leiden

Místo konání akce

Thessaloniki

Datum konání akce

10. 6. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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