METHOD OF REINFORCING PREFABRICATED REINFORCED CONCRETE HOLLOW-CORE SLABS WITH COMPOSITE MATERIALS Russian patent published in 2024 - IPC E04G23/02 

FIELD: construction.

SUBSTANCE: invention relates to methods of reinforcing prefabricated reinforced concrete hollow-core slabs. Method of reinforcing hollow-core slab includes device in each of hollow plates of two holes from above and introduction of reinforcement element through one of them. After arrangement of holes, dust is removed from lower surface of each void of plate along its entire length, then an adhesive composition is injected onto the lower surface of each void, followed by its distribution over the surface using an ellipsoidal roller attached to a cable, one end of which is passed through one hole, and the other end through the other hole and by alternate tension and release of the cable the adhesive composition is leveled. After that, a reinforcement element made in the form of a composite lamella is attached to one of the ends of the cable, removing the ellipsoidal roller from the void and drawing the composite lamella along the entire length of the void, it is lowered onto the adhesive composition and rolled to the lower surface of the void with an ellipsoidal roller similar to the process of leveling the adhesive composition. Then, brackets are inserted into holes of cavities with their resting on composite lamella, sealant is applied along the perimeter of the top of the bracket and the holes are filled with quick-hardening concrete.

EFFECT: higher bearing capacity of the slabs.

1 cl, 12 dwg