Introduction. Modern road constructions are based on two types of pavement: asphalt concrete and cement concrete. Theory and practice show that in any climatic conditions, any intensity and any composition of movement, cement concrete coatings are durable. At the same time, in developed countries, with an established developed network of roads and an efficient maintenance service, they maintain an approximate parity in the ratio between asphalt and cement concrete pavements in the total volume of roads under construction.
Topic. The technology of building roads using cement concrete coatings has been used in the world for several decades. It has found application in countries with a wide variety of climatic conditions. The average operation life of such roads is at least 20 years, with minimal repair and maintenance costs. A comparative analysis of the costs of materials during the construction of cement concrete and asphalt concrete pavements and taking into account the numerous overhauls of asphalt concrete pavement during its operation life shows that the cost for the concrete option is several times less than for the asphalt concrete option: 2 times for the overhaul period for asphalt concrete pavement 5 years and 3 times, with a three-year overhaul period. The high durability of cement concrete coatings is due to the peculiarity of cement concrete as a material. Strength and deformation properties of cement concrete, unlike asphalt concrete, practically do not depend on temperature and air humidity. Over time, over the operation life, the strength of cement concrete increases (on average, by 10 % – 20 %), despite the intense movement of vehicles and the aggressive effects of climatic factors. Accordingly, on cement concrete pavements, the formation of a rut because ofsurface deformations or wear is almost impossible, while rut is one of the most common defects in modern roads with asphalt pavement.
Materials and methods. In accordance with the approved strategic plans for the development of the road industry of the Republic of Kazakhstan, as well as taking into account international experience, over the past 15 years, 1,452 km of roads with cement concrete pavements have been built in the Republic.
Results. The result is the development of the construction of concrete roads, which, along with their positive properties, require new technological solutions to ensure the stability of coatings to the action of transport and weather and climate factors. As well as world experience in the construction of roads with cement concrete coatings, promises a great future of this direction development. Definitely the advantages of cement concrete coating are stable transport and operational performance and high durability.
