Exposed aggregate is concrete with the stone left showing at the surface. The rock is already in the mix. We wash and brush away the thin layer of cement paste on top before the slab hardens, and what sits underneath becomes the finish. It has grip underfoot, it hides the scuffs and tire marks a driveway picks up over years, and it does not need a pattern pressed into it to look like something. Around Marietta Square, where retail and restaurant frontage meets the walk, it holds up under steady foot traffic without going slick.
Every job starts with the same three questions: what the slab has to carry, how water leaves it, and which rock you want to see. A concrete contractor who skips that first part pours something that looks right for a season. We form the area, tie rebar or lay wire mesh, place the mix, then wait on the slab and read it. Timing the wash is the whole job. Too early and the stone loosens. Too late and the paste sets hard over the top of it and stays there.
Most of the failures we get called out to look at trace back to that window. A sidewalk washed unevenly shows pale streaks where the paste held and dark ones where it came away, and nothing fixes that afterward except taking the panel out and replacing it. Aggregate left loose sheds stone under traffic. Joints cut late or placed wrong let a slab crack on a line of its own choosing instead of the one we gave it. None of that is exotic. It comes from rushing a surface that will not be rushed.
Getting it right costs attention more than anything else. We choose the aggregate before the pour rather than after, because unlike stamped concrete, which takes its pattern from a tool, this finish can only show what already went into the truck. We pour sample panels you can stand over and look at in daylight. On larger areas we bring enough hands to wash the whole surface in one pass, since a crew that runs out of time halfway across a driveway leaves a seam in the color that never fades out.
Our work covers driveways, patios, walkways and commercial flatwork, new pours and replacement, for houses and for the businesses along the commuter corridors that run toward Atlanta. Most of what we place sits beside concrete somebody else poured years ago, so we spend real time getting a fresh slab to sit right next to what is already there. If you want to see an exposed aggregate finish in person before deciding, we can point you toward finished work. Call for a free estimate and tell us what the space is doing now.
