Detail publikace

Testing of Bituminous Pavement Layers Reinforced with Fiberglass Grids

HOLOMEK, J. ŠPERKA, P. KUDRNA, J. BOHUŠ, Š. SACHR, J.

Originální název

Testing of Bituminous Pavement Layers Reinforced with Fiberglass Grids

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

asphalt, bending test, glass grid, reinforcement, pavement

Autoři

HOLOMEK, J.; ŠPERKA, P.; KUDRNA, J.; BOHUŠ, Š.; SACHR, J.

Vydáno

19. 5. 2018

Nakladatel

Tiskara Zelina

Místo

Záhřeb, Chorvatsko

ISBN

978-953-8168-25-3

Kniha

Road and Rail Infrastructure V, Proceedings of the Conference CeTRA 2018

ISSN

1848-9850

Periodikum

Road and Rail Infrastructure V

Stát

Chorvatská republika

Strany od

1681

Strany do

1687

Strany počet

8

BibTex

@inproceedings{BUT148972,
  author="Josef {Holomek} and Pavel {Šperka} and Jan {Kudrna} and Štěpán {Bohuš} and Jiří {Sachr}",
  title="Testing of Bituminous Pavement Layers Reinforced with Fiberglass Grids",
  booktitle="Road and Rail Infrastructure V, Proceedings of the Conference CeTRA 2018",
  year="2018",
  journal="Road and Rail Infrastructure V",
  pages="1681--1687",
  publisher="Tiskara Zelina",
  address="Záhřeb, Chorvatsko",
  doi="10.5592/CO/CETRA.2018.937",
  isbn="978-953-8168-25-3",
  issn="1848-9850"
}