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MARY PURVIS 09-16-2012 08:41 PM

Pebble stone sidewalk
HoW do you remove the top layer of concrete on a pebble stone sidewalk after the concrete has already set up?

joecaption 09-16-2012 09:09 PM

Are you talking about exposed aggregate like in this picture?
If so that's just not going to happen.
It was suppost to be misted off with a hose before it set up.

MARY PURVIS 09-22-2012 08:25 PM

My screwed up pebblestone sidewalk

Originally Posted by mary purvis (Post 1011254)
hoW do you remove the top layer of concrete on a pebble stone sidewalk after the concrete has already set up?

can i use a concrete dissolver to expose the aggregate?

concretemasonry 09-22-2012 08:50 PM

Mary -

You are little late and you must understand the differences between real exposed aggregate and an epoxy bonded system.

If it is real exposed aggregate, the "pebbles" as in the concrete before it is curing and gains strength. The epoxy is just an after coating to stick the "pebbles" to the cured concrete.

If it is an epoxy system, you might be able to remove the "pebbles" if it was not done perfectly. If it is a real exposed concrete surface that could go all the way through the entire concrete slab. My patio was a 4" slab and it was better and cheaper to have the aggregate all the way through and just wash off the surface cement within 24 hours to expose the "pebbles" before the final concrete was cured. -Looks and works great after 10 years. Mine was a McDonald's mix (rounded rock) that was just a standard mix for the local supplier that supplied a lot of burger places. In that case, you could grind and polish the surface to get a slippery "terrazzo" effect.

There is not a pretty and easy way to get what you seem to want.


TRUEPRO 09-26-2012 02:17 AM

I highly doubt you can remove epoxy systems without a fight. Outdoor applications are generally only 1/2" but epoxys dont budge at all. More likely to tear up whats underneath first. I have used such products such as Sierra Stone and its installed to last forever. Such products were first used in climates such as canada where they experience -20 or worse. Not sure what options you have here. Find someone who can do a concrete overlay?

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