EVOLUTION ROADS

The Romans were successful in building roads.

They have built 400,000 km of roads, including over 80,000 km of stone surface. With the fall of the Roman Empire, nobody cared about keeping the roads and many of them break down. Further trips were dangerous. Even in Britain, which is famous for its good roads, transport in the eighteenth century was performed on animals because carriages could not overcome the road.

Due to increasing urban population there is a need for efficient transportation of food, raw materials, finished products

Modernity

The general principle of pavement construction in our time remained the same, only materials have changed. The use of hewn stones for paving stones in the 20's, 30's of the last century became too labor-intensive (they remained only in difficult conditions, such as on slopes, in the area of ​​transport stops, etc.), and cheaper and technological materials and coatings - asphalt were invented. and concrete, which will allow to create in the world a wide network of roads.

Asphalt is a mixture of oxidized hydrocarbons soluble in turpentine, chloroform, hydrogen sulfide, partly benzene, and alcohol.

Since the 1960s, rubber parts from old worn tires have often been added to asphalt, reducing noise and increasing the durability of the coating.