MULTILAYER COMBINED ROAD SURFACE AND METHOD OF PRODUCING MULTILAYER COMBINED ROAD SURFACE Russian patent published in 2017 - IPC E01C7/04 B32B11/12 

FIELD: construction.

SUBSTANCE: multilayered combined road surface consisting of active slag mix and crushed stone is described. The coating includes four layers consisting of the first layer on the basis of crushed stone fraction 40*70 mm, with a layer height of 300-500 mm, the second layer on the basis of crushed stone fraction 20*40 mm, with a layer height of 200-400 mm, the third layer on the basis of crushed stone fraction 5*20 mm, with a layer height of 50-300 mm, the finishing layer on the basis of an active slag mixture containing crushed stone fraction 0*5 mm, with a layer height of 10-50 mm. Crushed stone is a homogeneous material, which is a by-product of converter production. A method for obtaining road surface is also described.

EFFECT: road surface has been obtained which withstands high mechanical loads.

6 cl, 1 dwg