Abstract
A wide variety of destructions and deformations of the pavement, such as rutting, waves, fatigue cracks, is shown by the experience of operating roads with asphalt concrete pavements. The actual service life of road structures is often much lower than the standard. The service life of asphalt concrete pavements of roads in Ukraine is 5-7 years instead of 12 before overhaul.
Thus, a decrease in the service life generally leads to a deterioration in the transport and operational condition of the road network.
Bitumen is one of the materials most susceptible to changes in asphalt mixes.
In the world practice of road construction, the opinion is firmly established that a radical way to improve the quality of bitumen is their modification with polymers. However, the introduction of polymer additives into petroleum bitumen is not always able to provide the required performance of asphalt concrete in terms of shear resistance at high positive temperatures, crack resistance at low temperatures, and fatigue life when exposed to long-term dynamic loads.
The compositions and technologies for the production of technological complex-modified road asphalt mixtures for the construction of non-rigid pavements of increased durability based on basalt fiber have been developed at the National Aviation University.
Keywords: asphalt concrete; dispersed reinforcement; basalt fiber; crack resistance; shear resistance
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