Leave rebar exposed for future construction?
Leave rebar exposed for future construction?
(OP)
I have to plan for a future clarifier to be built adjacent to the pump station and clarifier I am currently designing. That is, eventually, it will be two clarifiers with a pump station between, but only the one clarifier will be built in this contract. What's the best way to detail the foundation so that it can be expanded later? Could I leave rebar exposed--coated and protected--ready to receive the future basin mat? Is there a "soft" concrete that could be demo'd later? Or should I just let the next guy worry about it?






RE: Leave rebar exposed for future construction?
RE: Leave rebar exposed for future construction?
RE: Leave rebar exposed for future construction?
This would be much easier than chipping away lean mix concrete.
They do a similar thing with ferrules in precast panels.
RE: Leave rebar exposed for future construction?
The best compromise solution that we (the Owner) found was to leave clearly defined area where the existing concrete could be drilled (in the future) and appropriate size rebar dowels grouted, epoxied, etc. into place.
www.SlideRuleEra.net
RE: Leave rebar exposed for future construction?
RE: Leave rebar exposed for future construction?
RE: Leave rebar exposed for future construction?
Dik
RE: Leave rebar exposed for future construction?
As far as your original question, I agree with SperlingPE. The threaded couplers are the way to go.
The real problem with this detail is to make sure the contractor puts it in at all. It's hard to get them to put in quality work to help out the guy on the next project.
RE: Leave rebar exposed for future construction?
RE: Leave rebar exposed for future construction?
The waterstop is the tougher issue. It needs to be protected, but not so protected that we damage it getting off the protection. I've seen several ways to do this all of which work preetty good. Using Class C (2500 psi) concrete, galvanized sheet metal, redwood all are OK, but it's never as good as new.