Features of application of modern types of concrete in transport construction

Abstract

The paper considers the problem of using modern types of concrete, in particular self-compacting concrete, fiber concrete and ultra-high-strength concrete. The issues of the importance of analyzing the possibility of using innovative types of concrete were raised in order to improve the quality of the resulting structures, increase their durability, reduce labor costs, reduce the time of work. The principle of operation of self-compacting concrete and concrete using various fibers instead of conventional reinforcement is described. Their strength characteristics are shown, the principle of operation, the features of its use, as well as manufacturing methods are described. The main types of fibers, both metallic and non-metallic, are distinguished, their main features are described. It also discusses the importance of adhering to the technology for laying concrete mixtures and how to care for them. Examples of their possible and actual use in transport construction and not only are given. The experience of using self-compacting concrete and fiber concrete in tunneling, bridge building. The issues of their development and features of their application are raised. The importance of their use from an environmental point of view (the use of recycled materials) is noted. A comparison of the main mechanical characteristics of several types of concrete (ultrahigh-strength concrete, high-strength concrete, ordinary concrete) is carried out. The principle of tensile operation of ultrahigh-strength concrete in comparison with other materials is considered. Using the authors’ works as an example, the work emphasizes the importance of further research of these materials, the development of regulatory documentation for further implementation in various areas of construction, the importance of developing new types of reinforced concrete structures with new section shapes, which is possible with the correct approach and use of modern materials, is emphasized.