Specifying Question

[ReverenceEng]

I have a client that attached something to a wall with a concrete anchor, but the wall is actually clay brick. Most anchors do not have load tables for clay brick and also I never never seen an ICC-report for clay brick except one of the hilti epoxy anchors that requires a ridiculous embedment though multiple wythes. Normally I spec the Hilti HLC sleeve anchor since they at least have load tables for it.

The question is: does anyone have any guidance or precedence for doing something like this? IN general terms, specifying anchors that don't actually have load tables for the technical substrate? Of course, I could just do it if I feel comfortable based on some reasoning, but how to justify?

Any relevant guidance appreciated.

 

[dik]

Can you check with:

https://www.masonryinstitute.org/products.php?catID=5

They may have some technical information.

Dik

 

[briancpotter]

It also might be worth giving Hilti a call, they tend to have information about their product performance that doesn't always make it into the printed specs.

That said, depending on the exact conditions, I'm skeptical you could recoup enough in engineering fees to justify the rather significant risk you're assuming here.

Brian C Potter, PE
Simple Supports - Back at it again with the engineering blog.

 

[hawkaz]

Pull test

 

[MrHershey]

Can always pull test to a proof load as well. We've done this when anchoring to questionable ungrouted masonry in the past to give a little bit better comfort level, even though we actually had tables for the anchors we were using.

I know some of the Hilti/Simpson sales engineers out there will do it for free on their products.

 

[wannabeSE]

The BIA has a technical note on Anchor Bolts for Brick Masonry. It has some basic information on post-installed anchors used in brick.

http://www.gobrick.com/portals/25/docs/technical notes/tn44.pdf