Sealing snap tie holes in poured concrete foundation walls
The contractor pouring the concrete foundation walls on my new home is using flat snap ties, steel plates roughly 3/32″ thick and 1-1/2″ wide, to retain the interior and exterior wall forms at the proper spacing while the concrete is being poured. The snap ties have indentations along each edge which allow them to be broken off after the forms are removed with the “snapped” end of the plate being slightly below the surface of the concrete.
What should be done to seal the ends of these snap ties at the surface of the wall so that they don’t rust and won’t provide a point for moisture ingress?
The exterior surface of the walls has a brickwork pattern. The intent of this is to avoid a costly exterior covering or finish. I am planning to just apply concrete sealer and/or stain to the above grade portions of the walls. So I want any material applied at the ends of the snap ties to behave similarly to the concrete with respect to stains and sealers. Perhaps just brick mortar? Perhaps sanded grout?
Any help would be appreciated.
BTW… The contractor says he typically does nothing to seal the snap tie ends and has never had a problem or call back. Am I worrying too much?
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