| Abstract [eng] |
Nowadays all newly paved asphalt layers are assessed and controlled by conventional destructive methodology, which does not provide data and results on real-time for contractors and customers. The purpose of this thesis is to evaluate the methodologies used for the automated registration of quality parameters of asphalt layer installation and the possibilities for their usage. Researchers note that compaction and temperature registration devices and systems are currently the most advanced, but are still in the testing phases for reliability and purpose of using the data. The Northern European countries introduced the bonus system methodology, which encourages contractors to use automated registration systems and to increase the quality of the road construction work performed. An experimental study of asphalt pavement compaction/resistance was conducted, and the data obtained show the limited reliability of automated methods compared to the results of destructive tests. A survey of specialists showed that 3 out of 8 contractors use automated registration technologies in their daily construction work, which record the number of compaction roller passes, the temperature of the compacted layer, and the modulus of resistance. The implementation of a bonus system or lower costs of these technologies would ensure a significantly higher involvement of contractors, specialists say. According to respondents, automated registration technologies would significantly improve the quality of road construction but are currently too expensive to use without additional incentives. The lack of competence of technical operators of mechanisms and an unpreprared legal basis framework are the main disadvantages. Master's thesis consists of 82 pages that include 43 figures, 13 tables, and 59 references. |
