METHOD OF ELIMINATION OF LOCAL DEPRESSIONS ON ASPHALT CONCRETE COATING OF MOTOR ROADS Russian patent published in 2015 - IPC E01C23/00 E01C7/18 

FIELD: construction.

SUBSTANCE: method of elimination of local depressions on asphalt concrete coating of motor roads includes cleaning of depression, its filling with granulated asphalt concrete mix of bitumen and filler, and formation of local coating. Walls and bottom of pre-cleaned local depression are wetted with combustible liquid and a flat combustible element is placed at the bottom of the depression and above the cleaned local depression a bearing element is placed which has the form of sheet mesh material, and is made, for example, from heat-resistant polymeric fibre and mineral fibre, providing its fixing on the paving, at least, from two opposite sides of the local depression outline with mechanical preload, and then on the bearing element the granulated asphalt concrete mix of bitumen and coarse mineral filler is placed with the layer necessary for depression compensation, and before formation from it of coating by compaction above the local depression the flat combustible element is burnt in it by ensuring its ignition from lighting-up of combustible liquid on the depression surfaces and air supply under the bearing element by its injection by pump.

EFFECT: simplification of technology, decrease of labour input, increase of coating service life.

2 dwg