Method and apparatus to fill and fire proof holes in concrete floors of commercial buildings utilizing a precast plug

摘要

The present apparatus and method relates in general to sealing a hole in a floor with a precast plug. A precast plug is created by pouring a wet aggregate mix into a form mold and thereafter inserting a pre bent rod into the uncured mixture, positioning it such that the center of the rod rests in the center of the form mold and the ends of the rod extend outward near the top of the form mold. The mix is then cured. The precast plug may then be transported to the hole that it is destined to fix. Grooves may be carved on either side of the hole to accommodate the rod's ends. The interior of the hole and the exterior of the plug may then be covered with a sealant, after which the plug may be inserted into the hole. Once the sealant cures, the hole is fully repaired.

主权项

1. A floor assembly in a building, comprising:
a floor including a hole that previously housed an electrical unit; one or more grooves on the surface of the floor and adjacent to the hole; and a precast plug, the precast plug comprising:
a concrete housing configured to substantially seal the hole in the floor of the building; anda rod situated within the concrete housing, the rod including a first and second portions situated external to the concrete housing, wherein the first and second portions are configured to register with the one or more grooves on the surface of the floor and adjacent to the hole.