FIELD: hydraulic structures.
SUBSTANCE: invention relates to construction and operation of hydraulic structures, in particular to repair of concrete and reinforced concrete structures of sluices of navigable channels. Method of restoring reinforced concrete and concrete structural elements of hydraulic structures includes restoring a solid structure of concrete and reinforced concrete of a hydraulic structure by injecting an injection mixture into injection wells, drilled to the source of the defective zone, wherein the injection works are carried out from the day surface of the hydraulic structure. Injection mixture for recovery of reinforced concrete and concrete structural elements of hydraulic structures contains linker-free hydraulic binder, including finely ground blast-furnace slag with grain dispersion of 95% less than 5 mcm, hydrated lime, plasticising and water-retaining additives in the following ratio of components, wt.%: finely ground blast-furnace slag – 75-85; hydrated lime – 10-15; plasticising additive – 0.5-1.0; water-retaining additive – 3-5.
EFFECT: development of method providing restoration of reinforced concrete and concrete structural elements of hydraulic structures, prolonging their service life.
2 cl, 2 dwg, 1 tbl
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