Drilling in concrete with a regular drill

[Anna Bo]

A small update. This morning I drilled my holes under a road bridge with a regular drill and a Bosch multi construction bit. It went perfectly well. A big thanks to cpalm who saved me from buying a hammer drill/impact drill!

 

[ArneTW]

A little update. This morning I drilled my holes under a viaduct with a regular drill and a Bosch multi construction drill bit. It went perfectly well. A big thanks to cpalm for saving me from buying a rotary hammer/impact drill!

Viaduct?

Hope we won't read about a blown-up bridge in the future...

/ATW

 

[Anna Bo]

Road bridge?

Let's hope we don't read about a blown-up bridge in the future...

/ATW

No, it was a birdhouse intended for the dipper. Possibly if someone else puts something in it

 

[HEM2121]

Relatively low speed and high pressure. Similar to when drilling in steel.
I use them where it's too tight to reach with the rotary hammer, and also to get through thicker rebar.

Don't buy cheap junk though. Tried a number of cheap universal drills before I found Bosch that actually worked.

The question is if a Green Bosch can handle it? Plus, it's a few years old. I would rent a machine instead.

 

[useless]

The question is whether a Green Bosch can handle it? Also, it's a few years old. I would rent a machine instead.

TS has already drilled the holes with that type of drill, so evidently, it worked.

 

[roli]

No, it was a birdhouse meant for the dipper. Possibly if someone else puts something in it

Hope it was a "private" bridge. Because if the owner is Trafikverket, they won't be happy if you've drilled into the concrete and damaged the cover for the reinforcement... Especially if you've used screws and plugs. However, if you've used stainless steel threaded rods that have been injected or anchored with anchor compound into the concrete, it might be okay.

 

[Anna Bo]

Hope it was a "private" bridge. If the owner is Trafikverket, they might not be happy if you've drilled into the concrete and damaged the cover layer to the reinforcement...

Don't I have to reach the reinforcement to damage the cover layer? Anyway, it was perhaps a bit misleading to write road bridge since it's no longer in use. The road has been rerouted, but the bridge remains abandoned in the forest.

 

[roli]

Don't I need to reach the reinforcement to destroy the cover layer?

No, a hole leads in moisture and wetness, which then reduces the distance to the reinforcement layer. If you seal it with anchoring compound or grouting when you attach your fixture, the hole is considered sealed.