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  • The use of reinforced soils in the base of road pavements of highways located in 1 road-climatic zone

    The article is devoted to the use of reinforced soils in the base of pavements of highways located in the I road-climatic zone. The features of the operating modes of reinforced foundation soils are considered, and their physical and mechanical characteristics with various combinations of mineral and polymer modifiers are determined. The authors analyze the advantages and disadvantages of using reinforced soils. The article also discusses the design and construction of roads using reinforced soils.

    Keywords: highway, road pavement, foundation, soils, reinforced soils, modifiers

  • The feasibility of using bitumen when strengthening cement soil

    The article discusses the use of organic binders to modify the properties of cement soils. The scope of application of cement soils in construction practice, including the construction of highways, is considered. The influence of the use of organic binders as a complex additive that modifies the strength characteristics of cement soils has been studied. The influence of the use of complex modifiers and additives on the frost resistance and water permeability of cement soils has been determined.

    Keywords: cement soil, organic binder, highway, working layer, frost resistance, modifiers

  • Construction of metal corrugated pipes in the presence of permafrost soils

    The article deals with the issues of assessing the effectiveness of the construction and operation of metal corrugated pipes. The characteristic features and difficulties of the operation of corrugated metal culverts in areas of permafrost distribution are revealed. The characteristics of the main defects of culverts are systematized. The features of thermophysical calculations of metal corrugated pipes on a frozen base are analyzed in detail. Recommendations are given on the application of the most effective technical solutions in the construction of corrugated metal culverts on permafrost soils.

    Keywords: highway, culverts, metal corrugated pipes, thermal conductivity, permafrost soils