Kushnir O. Increasing the durability of asphalt pavement on approaches to road bridges

In the dissertation work the analysis of increase of durability of an asphalt concrete covering on approaches to road bridges is carried out. The analysis of working conditions of asphalt concrete pavement on approaches to bridges is carried out and calculation schemes are developed. The method of calculating the durability of the road surface on the approaches to the bridge has been improved. Based on the developed calculation scheme of asphalt concrete layers on the approaches to road bridges and analytical dependences to assess the limit state of asphalt layers, improved the method of calculating the durability of asphalt layers with the combined action of temperature stresses and horizontal normal and vertical loads. in asphalt concrete layers of a covering, taking into account thermoreological characteristics of road-building materials. Improving the durability of asphalt pavement of non-rigid pavement on approaches to road transport structures and taking into account the joint impact of temperature changes and the action of pneumatic wheels of vehicles will increase the durability of individual elements of artificial dispute and the transport structure as a whole.