Testing of Bituminous Pavement Layers Reinforced with Fiberglass Grids
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU128510" target="_blank" >RIV/00216305:26110/18:PU128510 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.5592/CO/CETRA.2018.937" target="_blank" >http://dx.doi.org/10.5592/CO/CETRA.2018.937</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5592/CO/CETRA.2018.937" target="_blank" >10.5592/CO/CETRA.2018.937</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Testing of Bituminous Pavement Layers Reinforced with Fiberglass Grids
Popis výsledku v původním jazyce
The usage of fiberglass grids in asphalt layers helps to restrain the crack propagation and thus can significantly improve pavement life time. The grids can be used in both new road constructions with decreased asphalt layer thickness and in road rehabilitations, respectively. Further, it can be used to decrease the road failure caused by settling of pavement construction in outer vehicle path of strengthened and widened old secondary road, which is a frequent type of pavement failure in the Czech Republic. However, the testing methods for evaluating grid effect and its bond condition to the surrounding asphalt layers differ. This paper presents the specimen preparation, specimen quality test and results of the four-point bending creep test performed on reinforced asphalt beams. The results are then compared with specimens without a fiberglass grid. The possible modes of failure are described and discussed. The test arrangement and loading procedure was adopted from the American standard ASTM D7460, where the specimens are loaded by a constant force and mildly oscillated. However, the four-point bending test cannot properly describe the real behaviour of fiberglass grid and asphalt in real road construction. The paper therefore mentions also an alternative test arrangement for better modelling and understanding of the grid contribution to the pavement.
Název v anglickém jazyce
Testing of Bituminous Pavement Layers Reinforced with Fiberglass Grids
Popis výsledku anglicky
The usage of fiberglass grids in asphalt layers helps to restrain the crack propagation and thus can significantly improve pavement life time. The grids can be used in both new road constructions with decreased asphalt layer thickness and in road rehabilitations, respectively. Further, it can be used to decrease the road failure caused by settling of pavement construction in outer vehicle path of strengthened and widened old secondary road, which is a frequent type of pavement failure in the Czech Republic. However, the testing methods for evaluating grid effect and its bond condition to the surrounding asphalt layers differ. This paper presents the specimen preparation, specimen quality test and results of the four-point bending creep test performed on reinforced asphalt beams. The results are then compared with specimens without a fiberglass grid. The possible modes of failure are described and discussed. The test arrangement and loading procedure was adopted from the American standard ASTM D7460, where the specimens are loaded by a constant force and mildly oscillated. However, the four-point bending test cannot properly describe the real behaviour of fiberglass grid and asphalt in real road construction. The paper therefore mentions also an alternative test arrangement for better modelling and understanding of the grid contribution to the pavement.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20104 - Transport engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/TH01011292" target="_blank" >TH01011292: Výzkum a aplikace nových technologií stavby a oprav vozovek se sníženou tloušťkou asfaltových vrstev</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2018
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
Road and Rail Infrastructure V, Proceedings of the Conference CeTRA 2018
ISBN
978-953-8168-25-3
ISSN
1848-9850
e-ISSN
—
Počet stran výsledku
8
Strana od-do
1681-1687
Název nakladatele
Tiskara Zelina
Místo vydání
Záhřeb, Chorvatsko
Místo konání akce
Zadar
Datum konání akce
17. 5. 2018
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
000518218300213