With the onset of positive ambient temperatures on city streets and roads outside settlements, you can see the laying of asphalt concrete pavement or minor patching with the use of an asphalt concrete mixture.
This building material is made in special asphalt concrete plants of a mobile or stationary nature.Before starting the work, the road company prepares all the necessary components for the production of asphalt concrete mixture of the required brand and type.The main components of asphalt are: inert materials of various fractions, a binder of petroleum origin and various additives.
The mineral skeleton of the asphalt concrete mix consists of coarse, medium and fine aggregates.in the production of coarse-grained material, the need for medium and fine aggregate is eliminated.Fractionated crushed stone with a size of individual particles in diameter from 10 to 20 millimeters is used as a large aggregate.It is this inert material that is the main link responsible for the strength of the finished product.Medium and fine aggregates make it possible to minimize the porosity of the asphalt concrete mixture, reduce the degree of water saturation and lower the coefficient of porosity.Thus, the quality of the material increases significantly, and the service life of the coating increases for a single year.To increase the strength characteristics of asphalt concrete, no more than 6 percent of mineral powder is added to the mineral framework.
Min.the powder is crushed limestone and resembles ordinary food flour in its consistency.It is produced in specialized factories and released in batches, both in bulk and in sealed moisture-proof bags.The choice of one or another product release depends entirely on the volume of production of asphalt concrete mixture.
As an organic binder in the manufacture of asphalt road oil bitumen is used, grade BND 90 to 130. This constituent material is produced at oil refineries.Its transportation is carried out by special vehicles and constant heating.
Inert materials are stored on the territory of the ABZ under a canopy, and mineral powder and bitumen in special containers.When materials arrive at the asphalt concrete plant, the incoming quality control is necessarily carried out for each component separately and the laboratory data obtained is compared with regulatory tolerances.If a defect is found, the products are returned to the supplier. With online casino reviews websites like automaty247.com easy to find casinos that suits your needs.