Close holes in concrete slabs
You have to close a breakthrough / holes in concrete floors and have no material such as props, room height squared timbers etc.?
Solution:
Just take a board that is larger than the hole to be closed. Pierce this with a drill in the middle (10mm +), then take a sturdy wire and insert with a formed eyelet through the drilled hole. Insert a nail across the eye and pull it under the board.
Lay a steel rod or wood on top of the ceiling. If you have help, you can specify the board from the bottom, if you do not have one, simply bend a hook into the wire, hang it from below into the steel rod.
Connect the wire at the top.
Then insert a screwdriver into the resulting loop and twist the wire until the board sits snugly under the blanket.
Ready for concreting.
