Aluminum / Concrete Embedment
Aluminum / Concrete Embedment
(OP)
Is it possible to embed Aluminum in concrete without spalling the concrete? Do all Aluminum alloy react the same? Does anyone know of a good reference? I have not been able to find much on this topic.





RE: Aluminum / Concrete Embedment
RE: Aluminum / Concrete Embedment
Best Wishes
www.SlideRuleEra.net
RE: Aluminum / Concrete Embedment
ACI 318 Section 6.3.2 including the commentary deals with provisions for aluminum conduits and pipes.
RE: Aluminum / Concrete Embedment
RE: Aluminum / Concrete Embedment
RE: Aluminum / Concrete Embedment
(or anyone else)
Say you have a client who wants an aluminum guardrail (post and horizontals) instead of a galvanized steel system.
The architects don't want all that "ugly" base plate & anchor bolt stuff where you might be able to use SS bolts with a neoprene pad under the plate to separate from the concrete.
So would an installation using PVC sleeves in the concrete, with the aluminum posts set into it and filled with some sort of epoxy work? Not necessarily epoxy grout - but would that work?
RE: Aluminum / Concrete Embedment
RE: Aluminum / Concrete Embedment
The reason I ask is that I have recently seen aluminum curtainwall anchors set into recesed pour stops along the edge of the poured concrete floor slab. The contractor was then coming back and filling the pour stop flush to the floor slab with grout to accomidate interior flooring. The aluminum anchors were about 1/2" thick extruded with a conversion coating for finishing.
It's currently not in my scope of work but raised my curiosity when I saw it so I'm doing a little research so I can comment on it intelligently.
RE: Aluminum / Concrete Embedment
I wouldn't leave a PVC sleeve in place unless it had some type of anchoring knobs or similar to get bond to the concrete and to the grout. PVC is prone to shrinkage for the long term and the bond will break, loosening the handrail.
RE: Aluminum / Concrete Embedment
RE: Aluminum / Concrete Embedment