The execution of the gravel or crushed surface is to dig the road bearing, securing its edges by setting the curb or laying retaining stones as well as the spread and leveling of the aggregate layer and it. In multi -layer surfaces, each layer should be rolled separately using a shaft with the required mass. Walling each layer should be carried out until the statement, that the aggregate is not inferior to the shaft surface. When rushing the surface layer, spraying with water is advisable, which greatly facilitates the shifting of aggregate particles and increases the degree of mutual inclination. The surface layer should not be used by crushed slag or aggregates from soft natural or artificial stones, such as. dolomite or brick, Due to the easy abrasion and formation of dust.
Gravel and crushed surfaces are very widespread because of their ease of performance and availability (Especially in some regions of the country) materials used for their construction. However, these surfaces have many disadvantages, which now cause a significant limitation of their use. These defects include: difficulty maintaining smooth surfaces, dusting, ease of rinsing aggregate on sections with larger declines, The need for the graore fortifications and ease of overgrowth by weeds. For these reasons, maintaining such roads requires a lot of work and is therefore expensive. Mechanical weed removal is often impossible due to the difficulty of using tools usually used for this purpose. Thus, weeds on gravel and crushed surfaces are usually destroyed by chemicals, But remember, that the operation of these funds can threaten other neighboring plants.