Actual Efficiency of Road Pavement Rehabilitation

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

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Title Actual Efficiency of Road Pavement Rehabilitation
Creator László Gáspár; KTI Nonprofit Ltd.
Subject road rehabilitation; efficiency of road rehabilitation; trial section monitoring; pavement condition parameter; pavement life cycle
Description Most European countries, including Hungary have already practically completed the development of highway network (excluding the construction of new motor-way sections and bypasses). Instead, the real challenge is the condition pre-servation of existing road network, among others, by properly planned, designed and executed pavement rehabilitation. This is the reason why the knowledge on the actual efficiency of various road rehabilitation techniques
can be considered of utmost importance. 60 trial sections selected of Hungarian national highway network in 1991 have been yearly monitored since then. (Condition parameters systematically characterized are: bearing capacity, longitudinal and transversal unevenness, micro and macro texture, surface defects). However, the main aim of the already 25-year-old pavement monitoring is the development of ever im-proving pavement performance models for several road management purposes (done by KTI Institute for Transport Sciences Non-Profit Ltd., Budapest in a continuous research work) the condition data time series obtained can be utilized also for the evaluation of the actual road pavement rehabilitation techniques in Hungary. During such a long (25-year) monitoring period, it is obvious that almost every trial section ought to be rehabilitated (using surface dressing, thin asphalt layer, pavement strengthening) at least once. Since the monitoring of re-habilitated sections have continued after their condition improving intervention, the following information types could have been collected: actual condition level at intervention, actual condition improving effect for various condition parameters and deterioration trend in the pavement life cycle after rehabilitation compared to the previous one(s). KTI has carried out this kind of analysis, and can give information on the actual efficiency of various road pavement rehabilitation in Hungary for 14 combinations of pavement structure type (flexible, super-flexible, semi-rigid), traffic size (heavy, medium and light) and subgrade soil type (granular, intermediate, cohesive) based on the case studies performed.
Publisher CETRA 2016
Date 2017-02-28 15:19:58
Type Peer-reviewed Paper
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="">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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