concretedrillrebar
I am pouring a reinforced concrete beam. It contains rebar. I would like to insert the rebar (horizontally) into this rock:
What kind of drill and drill bit and to what depth should I drill to insert the rebar? My beam is using 10* 16mm steel bars, although I could use a lower size for the anchor.
You can actually punch surprising large holes in the middle of a beam without diminishing its load-bearing capacity. This is because that capacity is largely a function of only the top and bottom portions of the beam and how far apart they are.
Engineered floor joists are a good example of this:
It would take a structural engineer to tell you exactly how much the load-bearing capacity will be reduced, but I can tell you that this amount will be at least an order of magnitude less than the margin for error in manufacturing the beam.
Don't worry about it. It's what these things are made for.
It's been a long while since I worked construction, but I think I remember dowelling into concrete in a similar manner with a 1/2" drill bit and #4 rebar. We used a sledgehammer to drive the rebar pegs in. It MAY have been a larger bit, but I think I remember it being the same size.
Best Answer
A rotary hammer is the standard tool for a job like this, with a carbide-tipped masonry bit. You can rent a heavy-duty model at your local rental center. They're not difficult to use. Be sure to wear ear, eye, and resipration protection.
As for your question about depth, you haven't provided nearly enough information about your plans for anyone to speculate.