New Build Block Efflorescence

[thoyer]

New build garage, thought I'd be slick and use split faced block for the stem walls. Looks great from the outside but the inside now has multiple areas of efflorescence showing.

I was hoping to keep the natural block look on the inside, but now I'm second guessing this decision.

Anyone gone down this path before?

Tom

 

[quick60]

I would think once you are done and the inside of the garage has dried out a bit you can remove it and it probable wont come back.

 

[The Cobbler]

im wondering if the mortar had calcium added ?

 

[Hilltopmasonry]

Give it some time and it should go away on its own, some Times masonry products have to acclimate to a new climate and if it the staining does not go away there is efflorescence removers that can be used


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[1mikeg]

My experience has been to spray white vinegar on the efflorescence - cleans it right up (cheapest method). The efflorescence should stop in the near future. The only time I've seen the issue continue has been when the brick is on a block retaining wall that doesn't have any waterproofing. Water migrates through the block and brick leaving a salt residue.

 

[thoyer]

Thanks for the replies.

Once everything is buttoned up and I get the heat going (radiant floor) we'll see what happens. I'll go the vinegar route in the spring if it is still a problem.

All below grade bock was sealed.

 

[rayra]

muriatic acid. I'm coming up on the third go at my brick patio. I failed to put a moisture barrier under it. As moisture wicks up the decomposed granite base and into the mortar bed and brick. But it's not entirely unwanted, as the effect is getting the new brick to blend with the very old.