METHOD FOR REPAIRING CONCRETE FACING OF IRRIGATION CHANNELS Russian patent published in 2017 - IPC E02B3/16 E02B5/02 

FIELD: construction.

SUBSTANCE: method comprises removing the defective portion of the coating, applying the concrete 3 with a layer thickness δ= 0.05 m, and laying the polymeric profiled geomembrane 4 on the concrete, with rigid ribs down. The concrete 3 is applied along the damage contour 2 on each of its sides to a pre-wetted surface. In presence of serious damage with the width b_surf≥1.5 m, a polymer geomesh is laid on the concrete 3 layer. The width of the geomembrane 4 strip is determined depending on the concrete facing 1 damage 2 size, considering the stock.

EFFECT: use of the polymer profiled geomembrane and the geomesh for repairing the damaged concrete facings of irrigation channels will significantly extend the service life of the structures by 30-40 years, to reduce water losses through seepage, as well as to abandon large amounts of concrete work.

2 cl, 2 dwg