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The effect of multiaxial geocomposite reinforcement on fatigue performance and crack propagation delay in double-layered asphalt beams

Abstract

The presented study investigates the effect of a recently developed multiaxial geocomposite made of polypropylene geogrid and non-woven fabric on the delay of crack propagation, based on four-point bending tests of large asphalt concrete beams – both for reinforced and non-reinforced specimens. Several approaches are described in this study, including analysis of stiffness modulus decrease and analysis of crack propagation using dissipated energy. The study also includes investigation of the impact of reinforcement on shear resistance of the inter-layer bond. The reinforced system displays reduced decrease in stiffness during cyclic loading; it is able to bear loads over a longer period, in contrast to the unreinforced system. An increase in fatigue life by a factor of 10–22 is possible, as compared to the unreinforced system. The factor of relative increase in the number of cycles to the first initiation of crack in lower asphalt layer when reinforcement is introduced ranges from 5 to 10.

Citations

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Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
Road Materials and Pavement Design no. 24, pages S352 - S368,
ISSN: 1468-0629
Language:
English
Publication year:
2023
Bibliographic description:
Jaskuła P., Ryś D., Szydłowski C., Golos M., Kornacka K., Żółtko J., Kawalec J., Stienss M.: The effect of multiaxial geocomposite reinforcement on fatigue performance and crack propagation delay in double-layered asphalt beams// Road Materials and Pavement Design -Vol. 24,iss. supl1 (2023), s.S352-S368
DOI:
Digital Object Identifier (open in new tab) 10.1080/14680629.2023.2180998
Sources of funding:
  • IDUB
Verified by:
Gdańsk University of Technology

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