The aim of master's thesis was to determine the influence of the temperature of hot-rolled asphalt mixture during installation on its achieved density after the end of installation. The main emphasis was on the perception of temperature-segregated local sites. We first studied this field with the help of foreign and Slovenian literature, and then summarized the findings. We performed measurements on a real project for the repair of the highway. With the help of appropriate measuring equipment, we systematically measured the density in pre-marked local cold places. The interaction between the temperature at installation and the achieved density after the end of installation was determined under the same installation conditions. The influence of temperature on the density of the asphalt mixture was examined for four different functional asphalt layers. We also used different measurement methods. We studied the problem of temperature segregation in asphalt mixtures using IR thermography before rolling and performed measurements of the density of embedded asphalt after rolling. Density measurements were performed by the destructive (core removal) and non-destructive methods (electromagnetic and isotope probe). We looked for a relationship between temperature and asphalt density because we were interested in whether we could deduce the expected asphalt density based on temperature.
Our hypothesis was that the higher the temperature, the greater the density in the temperature range when the asphalt is “liquid” and unsegregated. We also wanted to determine from the obtained results whether the locally cooled places of the asphalt mixture still achieve the minimum level of compaction prescribed by Slovenian technical regulations.
The last part of the paper presents the results of measurements, findings, suggestions for improvements and comment.
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