FIELD: pipeline construction.
SUBSTANCE: method comprises applying interrupted layer of concrete-sand coating along the section of the pipeline to be repaired, allowing the layer to solidify, and applying the coating throughout the length of the pipeline section to be repaired. The coating mixture is supplied through the step hose thus allowing the thickness of the coating to be up to 400 mm for the diameter of the pipeline up to 5000 mm.
EFFECT: enhanced reliability.
2 cl, 5 dwg
