Issue |
MATEC Web Conf.
Volume 262, 2019
64 Scientific Conference of the Committee for Civil Engineering of the Polish Academy of Sciences and the Science Committee of the Polish Association of Civil Engineers (PZITB) (KRYNICA 2018)
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Article Number | 05019 | |
Number of page(s) | 5 | |
Section | Transportation Engineering | |
DOI | https://doi.org/10.1051/matecconf/201926205019 | |
Published online | 30 January 2019 |
Flexible pavement rehabilitation with continuously reinforced concrete slab with HFRP bars - mechanistic analysis
1
MSc., Eng., Warsaw University of Technology, Faculty of Civil Engineering, L. Kaczyńskiego 16, 00-637 Warsaw, Poland
2
Prof., PhD., Eng., Warsaw University of Technology, Faculty of Civil Engineering, L. Kaczyńskiego 16, 00-637 Warsaw, Poland
3
Prof., PhD., Eng., Warsaw University of Technology, Faculty of Civil Engineering, L. Kaczyńskiego 16, 00-637 Warsaw, Poland
4
PhD., Eng., Warsaw University of Technology, Faculty of Civil Engineering, L. Kaczyńskiego 16, 00-637 Warsaw, Poland
5
MSc, Eng., Warsaw University of Technology, Faculty of Civil Engineering, L. Kaczyńskiego 16, 00-637 Warsaw, Poland
* Corresponding author: p.radziszewski@il.pw.edu.pl
Asphalt road pavements are subject to damage under the influence of loads from the traffic of vehicles and of the environmental factors. One of the ways to strengthen damaged flexible pavements is to apply a cement concrete overlay with continuous reinforcement. The purpose of this paper is to analyze the road structure with concrete overlay with continuous reinforcement HFRP composite bars, which is laid on the existing cracked asphalt layers of a typical flexible road of KR3 traffic category. In HFRP bars some of the basalt fibers have been replaced with carbon fibers with the addition of resin binders. This do the possibility of making concrete slabs with increased resistance for environmental aggression, with good mechanical properties, which is especially important in the case of road constructions. An analysis of fatigue life of the strengthened asphalt pavement with a concrete slab with continuous reinforcement of HFRP bars was carried out, implementing the mechanistic model of the pavement structure. The stress analysis in the structure under the action of static loading was determined by the Finite Element Method using the Abaqus/Standard program. The maximum value of stress caused by temperature gradient in the concrete slab was calculated from the Westergaard’s formula for infinite slab. It has been shown that strengthening the analyzed road pavement with a continuous reinforcement is a technology that ensures an increase in fatigue life and reinforcement with HFRP bars further increases durability due to the negative impact of environmental factors.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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