Exchange of Heat in the Process of HMA Compaction

Abstract

The temperature of asphalt mix during its laying out is not homogeneous. Apart from the aspect of the mass cooling during its transportation, the losses of heat are a result of climatic and weather conditions (the temperature and air humidity, wind, rainfall, etc.) the operation and manner of rollers compaction (their type, frequency of passes, etc.) water (technological and that contained in lower layers of the structure) and the location of the profile. Based on the rights, which govern the processes of heat exchange, one may anticipate the distribution of the temperature in a layer. This facilitates a proper planning of the process of compaction and getting required densities.

Keywords

• hot mix asphalt (hma)
• heat exchange
• convection
• radiation
• conducting
• compaction