On Jun 12, 10:38*am, Captain Windsock
wrote:

I want to drill a number of holes through the concrete floor of my
house. *This is to fix some heavy equipment to the floor. *I presume
there is a damp proof membrane which would be punctured.

Is this advisable to do? *Would injecting some sort of silicone into the
holes make good the damp proofing? Or what is the solution to my
problem?

expansion bolts & bitumen, silicone, or any other totally waterproof
gloop. Note that many things sold as waterproof aren't really.

Another option is to resin some stud in (threaded rod). The resin does
both jobs then.


NT