Exposed aggregate - can I cover

by Angela
(San Jose)



My pool deck and patio is covered with exposed aggregate. I want to remodel the whole area. Most contractors have said removed the exposed aggregate, pour new concrete and cover with stone. I do want the stone finish. However, two guys have said to put a bonding agent, then put the stones over the aggregate. Is that possible?

ANSWER
To be honest, I don't know. To be safe (and if it was my own project), I would remove what is there. You'll be spending a lot of money to install stone pool decking, so why not do it the correct way.

What kind of stone are you considering? Have you considered travertine pavers? They are reasonably priced for stone and can also be dry laid for a less expensive application...and they are beautiful. Plus, they are cool on your feet...good for pool areas.
Take a look at this page here.
Travertine Pavers

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Mar 24, 2010
 Yes it can be covered
by: Brian Mininger

Existing concrete (including exposed aggregate) can be used as a base for mortared and dry laid applications of pavers or stone. The structural integrity of the slab is the main issue. It must be solid and not shifting and settling. Also, remember that this process can raise the patio level by as much as 3 1/2" so make sure that doesn't cause any problems with doors, steps, etc.

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