FIELD: construction.
SUBSTANCE: invention is related to the field of construction, in particular to method for strengthening of reinforced concrete ribbed floor slab and helical polymer screed. Strengthening method consists in removal of broken concrete, recovery of design after-repair section of slab and reinforcement of slab structure. Recovery of design after-repair section of slab is done by means of concrete coat application in areas of broken concrete removal. Reinforcement of slab structure is done by means of anchoring into opposite walls of slab arranged across its rib, two helical polymer rods with opposite thread. Rods have strength of at least 500 MPa and are connected to each other by means of helical turn-buckle. Later correcting pressing load is created to slab rib to recover bearing capacity and reduce intolerable sagging.
EFFECT: reduced cost, reduced terms of city utilities repair and increased reliability of structure after repair.
4 cl
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