Thermal insulation in pavement as a means of preserving or restoration the historical vertical layout of city streets

• Published in: IOP conference series. Materials Science and Engineering 2020-03, Vol.775 (1), p.12075
• Main Author: Simanovskii, A M
• Format: Article
• Language: English
• Subjects: Elevation; Freezing; Historic sites; Insulation; Pavements; Polystyrene resins; Reconstruction; Soils; Thermal insulation; Thickness; Underground roadways; Underground utilities
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/775/1/012075

The article is devoted to the problem of street reconstruction in areas with historically valuable buildings using the example of St. Petersburg. Saving the appearance of architectural monuments and street surface elevation points without reconstruction of underground utilities requires a reduction in the thickness of the road pavement. The solution to this contradiction is the use of insulating materials in pavement. The work is devoted to the theoretical study of road structures using thermal insulation made of polystyrene foam. Comparative thermotechnical calculations for traditional structures and structures with thermal insulation on various heaving soils have been performed. It is demonstrated that the use of traditional structures in the reconstruction of road structures leads to an increase in their thickness and frost depth. It is shown that the use of thermal insulation reduces the thickness of the pavement and completely prevents the freezing of soils under it. This allows saving and lowering elevation points of the road surface without reorganizing the underground utilities.