Anchor Bolts Painting
Anchor Bolts Painting
(OP)
I am supervising a temporary site office (Porta-cabins) using structural steel materials. All steel members will be coated with epoxy before painting. my question is about anchor bolts shall be fitted in the concrete column nick, is it better to paint it with epoxy primer also before concrete pouring??





RE: Anchor Bolts Painting
What is a "column nick"?
RE: Anchor Bolts Painting
column neck = column pedestal (sorry for wrong spelling)
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And stop calling me "dear". Only my wife gets away with that.
RE: Anchor Bolts Painting
As stated above, you can also coat the exposed portions with grease, paint, gooey-anti-corrosion-stuff, or whatever after fastening, but not before.
RE: Anchor Bolts Painting
If paint is capable of interfering with proper fastening, How would HDG NOT create a similar concern?
I don't know any better. It just SEEMS like HDG would be as problematic if not more so.
Can you speak to this?
Thanks,
Steve
RE: Anchor Bolts Painting
Below is the link to the archived article.
h
To paraphrase the article. They make the bolts and nuts to be compatible by over tapping the threads prior to galvanizing.
RE: Anchor Bolts Painting
Another option is metallizing/thermal spray with sacrificial or corrosion-resistent alloy. These kinds of bolts and nuts are not widely available, but for long-term, critical applications, they might be an option.
RE: Anchor Bolts Painting
I am designing a pedestrian bridge spanning 60 feet. (it will be made and shipped in 3 "pieces" - 15 ft sloping up at 1":12", 30 ft level and then 15 feet back "down" at 1":12")
The pieces will be bolted with end plate moment connections.
We are specifying hot dip galvanizing for the bridge steel.
The question -
Should we specify Hot Dip Galvanized A325 bolts for the moment connection?
RE: Anchor Bolts Painting
I would specify galvanized bolts, which may result in HDG or mechanical galvanized coating. I don't know whether performance would be different with the bolt. (With ordinary steel, HDG creates a zinc-iron intermetallic/alloy layer which adds to resistance)
RE: Anchor Bolts Painting