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Дата издания
22.12.2025На каком языке издана
ISSN
23450533Область исследования
Тип исследования
Аннотация (краткое описание)
When actual intensity of transport traffic considerably exceeds the planned values, it leads to accelerated wear of road surface and formation of rutting. This problem is actual on high- speed main streets of Almaty city. Rutting in asphalt concrete pavement, especially in the areas of expansion joints, causes impacts of motor vehicles' wheels on the ends of joints (metal trims). Such loads lead to rapid failure of all expansion joints that are fixed in the roadway. It is obvious that the increase in traffic volume contributes to the increase in damage, but it is worth noting that uniform loading with a certain frequency leads to the same result, whereas impact loads occurring after the appearance and progression of damage have a much more damaging effect. To date, most efforts to reduce potholes and rutting at joints with expansion joints have focused on reducing rutting, especially in the areas adjacent to expansion joints.DOI
10.21595/vp.2025.25183Тип публикаций
Практическое значение
It has been established that after commissioning of bridges and overpasses in a couple of years deformations, displacements, deep cracks and potholes in the zones of expansion joints will be inevitable in the zones of road asphalt concrete pavement with the depth from 3 cm to 10 cm. As a result of the research: 1) It is established that the interface zone of the deformation seam and the pavement is the most vulnerable element of the bridge bed, where dynamic loads from vehicles and thermal deformations of structures are concentrated. 2) Experimental studies have shown that the main causes of premature destruction of the coating near the seam are the accumulation of plastic deformations in asphalt concrete and impaired adhesion between the layers. 3) Quantitative dependences between the parameters of the seam design and the rate of formation of coating defects have been revealed, which makes it possible to predict the timing of the inter-repair period.Квартиль
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SCImago (Scopus)Impact Factor
0.9Количество цитирований
0Данный документ располагается в коллекциях
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Scopus
Файлы документа
vp-60-25183.pdf