Effectiveness of the Steel Mesh Track in Strengthening Cracked Asphalt Pavements

4th International Conference on Road and Rail Infrastructure (CETRA 2016)

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Field Value
 
Title Effectiveness of the Steel Mesh Track in Strengthening Cracked Asphalt Pavements
 
Creator Piotr Zieliński; Cracow University of Technology Institute of Road and Railway Engineering
Wamda Grzybowska; Cracow University of Technology, Poland
 
Subject Bearing capacity of pavement; Reinforcement with geotextiles; Steel mesh track; FWD deflections; interlayer system
 
Description In recent years many works have been done in Poland on application of geotextiles and related products to strengthen existing, cracked asphalt pavement structures. Relatively frequently, besides glass, glass-coal and polyester nets, the pavement reinforcing with steel mesh track (to simplify called later as the steel net) is also met, specially on national roads, trafficked with heavy vehicles. The purpose of the paper is to present the selected experiences gained while renewing and strengthening the national roads in the South of Poland. To these works, the steel mesh track of tensile strength 40/50 kN/m was applied. In the paper some design data were given, among others the subgrade analyses, existing layers system, as well as results of the elastic deflections and modulus, measured with FWD apparatus, on the pavement before and after its strengthening. The concept of the reconstruction works comprised the milling of the upper bituminous layer of 4 cm in thickness, laying the profiling course, installing the steel mesh track and bonding it with slurry seal course to the lower surface. As the overlay, two bituminous layers: 4 cm SMA + 8 ÷ 10 cm AC in thickness were placed. After 3 ÷ 5 years of the service, the measuring of pavement deflection bowl with the FWD was conducted and on the base of it, the estimation of its bearing capacity was carried out. Finally, due to the back analyses using the mechanical-empirical calculations, the profit of applying the steel mesh as the reinforcing interlayer in the system of asphalt layers was proved.
 
Publisher CETRA 2016
 
Contributor General Directorate for National Roads and Motorways, Division Kraków
 
Date 2017-02-28 15:16:45
 
Type Peer-reviewed Paper
 
Identifier http://master.grad.hr/cetra/ocs/index.php/cetra4/cetra2016/paper/view/535
 
Source CETRA 2016; 4th International Conference on Road and Rail Infrastructure
 
Language en
 
Rights Authors who submit to this conference agree to the following terms:<br /> <strong>a)</strong> Authors retain copyright over their work, while allowing the conference to place this unpublished work under a <a href="http://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution License</a>, which allows others to freely access, use, and share the work, with an acknowledgement of the work's authorship and its initial presentation at this conference. <br /> <strong>b)</strong> Submitted full papers will be published in the book of proceedings "Road and Rail Infrastructure IV" as well as in digital form (on a CD). Conference organiser is allowed to publish author's names, institution and country as well as the paper abstract on the conference web site.
 

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