Fixing Oversized Drill Holes in Concrete for Expansion Plugs Compatibility

Question

Hello, The matter is trivial, the ideas are there, but I want to be sure. Too large holes have been drilled for expansion plugs, unfortunately larger plugs cannot be inserted due to the size of the mounting screws. how to fix these holes? Glue the wall plugs with glue? Maybe it is possible to...

Anonymous · Answer

In the past, instead of pegs, expansion timber was used

spider446 · Answer

Depends on the loads the dowels will carry, how small the dowel can be glued onto the plaster, when it dries up, screw in the screw

shadow0013 · Answer

This depends on the load and whether the bolt will be pulled out by the load or sheared by it. If there are not many of these holes, you can use metal expansion bolts (they are more expensive but also have larger diameters).

mareklan · Answer

There is a special two-component adhesive in packaging such as silicone, which is used for gluing, for example, anchors.

Vein · Answer

Hello,

Thanks for the answers. Some of these fasteners will carry quite significant loads (e.g. cabinets, mirrors) and some only small (clothes hangers). The small holes are always the most problematic.

Best regards,

kemot55 · Answer

In Castorama, I saw a whole system for fixing dowels in porous and generally weak walls. It consists in inserting an appropriate tube with holes and then filling it with a special mass.
Personally, however, I have another patent from recent renovations. I fill the hole with elastic tile glue and push the plug in the wet mass (reaming a little - the glue is too thick) and then screw in the screw while wet. It is a bit cheaper than the ready-made mass and is effective.

And sometimes it may be better to drill a second hole and simply mask too large one (unless it is structurally not feasible)

mczapski · Answer

Well, you write in the title about holes in concrete and then in brick or hollow brick. Decide. And finally, how big are these holes, 1 mm or 5 mm? Another problem is how many of these holes. First, they are alternatives to the plastic pins. Secondly, you can put a type of T-shirt on the pegs. Thirdly, since you have time for the question, you could fill these holes a long time ago. It seems like you don't want to think.
We also do not know if we are dealing with holes of 5 mm or maybe 12 mm.

tomas323 · Answer

Sometimes I also recalibrated the hole. If it is a brick wall or some reinforced concrete or similar. it is best to fill the hole with tile adhesive, then press the fur of the pin. As the glue binds, you can screw the pin. The plaster dries faster, but it is weaker.

Vein · Answer

Hello,

I am accused of not thinking. The holes are different as I wrote, sometimes the problem is with 4mm holes when they will ream 5mm and sometimes with 8mm holes which will ream 9mm.

With light loads, I used paper tape as a "filler", but unfortunately the tape holds much too weakly.

Someone noticed that he writes once about concrete, another time about brick. The problem is that it just happens that I ream in concrete, sometimes in brick, and then in hollow brick. There are 5 badly made holes for the whole house. I was doing differently, either masking it or correcting it with tape.

Flexible tile adhesive is a very interesting tip

000andrzej · Answer

If it is only 1mm in diameter - a good expansion plug, as the name suggests, should expand. I also cope with plastering (there was no need to use glue yet). By always drilling with a 1mm smaller drill bit, then I calibrate it gently with the face value and there is no problem with the hole unless I find a hole in a brick. Then just stick with something. Always be careful when entering, because there is a layer of brittle plaster. I used a wooden dowel in the hole several times. It all depends on the circumstances.

Anonymous · Answer

No problem, a broomstick, shoot a knife, cut a piece and *** against the wall or wherever. Then a drill bit, drill a bit and you can screw a wood screwdriver.
He's great.
But you can do differently - a steel dowel. You drill a rod with a diameter like a hole, cut it in half lengthwise, place the cut part in a vice and squeeze it, then thread it. Now, when you screw the screw in, the thread will turn out to be too tight and will push the cut part apart.
A dowel like 102.

Vein · Answer

I coped with pasting pins on sudal, the glue that connects everything to everything

Fixing Oversized Drill Holes in Concrete for Expansion Plugs Compatibility

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