The role of mechanically stabilized base on the performance of top asphalt layer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00385159" target="_blank" >RIV/68407700:21110/25:00385159 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1051/e3sconf/202564403014" target="_blank" >https://doi.org/10.1051/e3sconf/202564403014</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/e3sconf/202564403014" target="_blank" >10.1051/e3sconf/202564403014</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The role of mechanically stabilized base on the performance of top asphalt layer

Popis výsledku v původním jazyce

The paper describes a laboratory study aimed at the influence of a granular layer mechanically stabilized by a multiaxial geogrid as the base on the performance of the top asphalt layer. Full-scale models with standard and composite bases were assembled in the laboratory facility of the Czech Technical University in Prague. Comparative models were dynamically loaded with the same amount of 100,000 loading cycles and equipped with few types of gauges. The settlement of a concrete circular loading plate placed on the top surface of the asphalt layer was a key parameter. Furthermore, observations included a precise deformation of geogrid, deformation of the contact between the asphalt layer and aggregate base, and horizontal pressures on the experimental box side wall as well. Comparison of the performance of the models showed a very positive influence of the mechanically stabilized layer leading even to the possibility of some reduction of asphalt and base thickness. It has economic sense, of course, but it also could solve a lack of proper natural aggregate which is already observed in some regions.

Název v anglickém jazyce

The role of mechanically stabilized base on the performance of top asphalt layer

Popis výsledku anglicky

The paper describes a laboratory study aimed at the influence of a granular layer mechanically stabilized by a multiaxial geogrid as the base on the performance of the top asphalt layer. Full-scale models with standard and composite bases were assembled in the laboratory facility of the Czech Technical University in Prague. Comparative models were dynamically loaded with the same amount of 100,000 loading cycles and equipped with few types of gauges. The settlement of a concrete circular loading plate placed on the top surface of the asphalt layer was a key parameter. Furthermore, observations included a precise deformation of geogrid, deformation of the contact between the asphalt layer and aggregate base, and horizontal pressures on the experimental box side wall as well. Comparison of the performance of the models showed a very positive influence of the mechanically stabilized layer leading even to the possibility of some reduction of asphalt and base thickness. It has economic sense, of course, but it also could solve a lack of proper natural aggregate which is already observed in some regions.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/CK02000293" target="_blank" >CK02000293: Adaptace francouzské metody hodnocení konstrukce pražcového podloží pro vysokorychlostní železniční tratě do podmínek ČR</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

EUROGEO 8 - 8th European Conference on Geosynthetics

ISBN

—

ISSN

2555-0403

e-ISSN

2267-1242

Počet stran výsledku

10

Strana od-do

—

Název nakladatele

EDP Sciences - Web of Conferences

Místo vydání

Les Ulis Cedex A

Místo konání akce

Lille

Datum konání akce

15. 9. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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