Hello.
I was drilling into concrete to install plastic plugs for concrete. But it turns out there’s already a hole almost exactly where I planned to drill. It overlaps significantly. And I don't want to move it now. So the plug will definitely sit loosely now.
So, the question is how do I fill in an old drill hole in concrete, so I can drill a new one that partially overlaps the old hole? What material, etc.
It's just for securing a threshold to the floor, but the threshold and measurements have already been adjusted. And I'm curious because it could happen again in other places.
I was drilling into concrete to install plastic plugs for concrete. But it turns out there’s already a hole almost exactly where I planned to drill. It overlaps significantly. And I don't want to move it now. So the plug will definitely sit loosely now.
So, the question is how do I fill in an old drill hole in concrete, so I can drill a new one that partially overlaps the old hole? What material, etc.
It's just for securing a threshold to the floor, but the threshold and measurements have already been adjusted. And I'm curious because it could happen again in other places.
The simple answer is that it is not possible. At least not without special solutions.
Eh, why wouldn't it work? You can just fill it with fine concrete or something even softer like plaster mortar. Husfix also seems popular but is expensive per kg. If it's just to hold a screw, it doesn't need to be strong, but it might be difficult to drill if it's of varying hardness, I don't know.
Use a narrow straw when you fill it to give the air somewhere to go, that's my tip. Otherwise, you risk mostly having air in the hole when you poke something into it.
Use a narrow straw when you fill it to give the air somewhere to go, that's my tip. Otherwise, you risk mostly having air in the hole when you poke something into it.
I read that it is about one that is a few mm in diameter and a few cm deep that already exists and that you want to drill a similar one right next to it?
In a few cases, it is clear that, for example, it is possible to enlarge the existing hole and fill it with suitable glue, epoxy, polyurethane, or just some new cement, insert the plug, and screw the threshold in place.
In a few cases, it is clear that, for example, it is possible to enlarge the existing hole and fill it with suitable glue, epoxy, polyurethane, or just some new cement, insert the plug, and screw the threshold in place.
Of course, it's possible to fill the hole, but when you have to drill a new one that overlaps the old one, it's very difficult to avoid the drill from "sliding down" into the old hole. Sure, if you manage to fill it so that the material becomes sufficiently homogeneous, it is possible. But it's easier said than done.J jishi said: