Thermodynamic Approaches in Assessing Quality, Efficiency and Environmental Friendliness of Asphalt Concrete
https://doi.org/10.21122/2227-1031-2022-21-6-490-498
Abstract
The experience of developed countries shows that the development of the road network and transport infrastructure determines the intensity of economic ties and is one of the most important conditions for the development of the state’s economy. Optimization of the composition and production technology of asphalt concrete mixture – the basis of paved roads, is of great importance, both from an economic and environmental point of view. The production of asphalt concrete mixture directly (during the production process at asphalt concrete plants) and indirectly (during delivery from the plant to the place of installation) determines the energy costs for the production of asphalt concrete. At asphalt-concrete plants the specific energy consumption per ton of hot asphalt concrete mixture varies from 0.3 to 0.7 GJ. The range in energy costs is large. This situation indicates the presence of a significant energy-saving potential of asphalt concrete mixture thermal technology. The exergy analysis of technical systems proposed in this paper, which are operated in the asphalt concrete mixture production processes, makes it possible to judge the efficiency of energy use in their thermal units. This approach is expedient not only in the primary production of asphalt concrete mixture, but also for more environmentally friendly, energy- and resource-saving production processes for the operation of equipment during the regeneration of road asphalt concrete.
Keywords
About the Authors
Qing ZhangChina
Henan
V. N. Romaniuk
Belarus
Address for correspondence:
Romaniuk Vladimir N. –
Belаrusian National Technical University,
65/2 Nezavisimosty Ave., 2
20013, Minsk, Republic of Belarus.
Tel.: +375 17 293-92-16.
pte@bntu.by
Yu. G. Aliakseyeu
Belarus
Minsk
Qiang Hou
China
Henan
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Review
For citations:
Zhang Q., Romaniuk V.N., Aliakseyeu Yu.G., Hou Q. Thermodynamic Approaches in Assessing Quality, Efficiency and Environmental Friendliness of Asphalt Concrete. Science & Technique. 2022;21(6):490-498. https://doi.org/10.21122/2227-1031-2022-21-6-490-498