By Larry Walton AN EXPOSED AGGREGATE WALKWAY
One of my favorite home projects is building a new concrete walk- way. It could be because I grew up on the west side of the Coast Range in Oregon where rainfall can reach 200 inches in a year.
With conditions like these, it doesn’t take many foot falls for sod to
become mud. Whether you are walking around the garage to roll the
trash bins out to the street or you’re headed out to the green house,
you’ll have an appreciation for a new concrete walkway.
Anytime you do concrete work you have the privilege of choosing the
type of finish the new concrete will have. Exposed aggregate can be a
good choice, especially if you are matching existing concrete or making
a purposeful contrast to another finished surface.
Aggregate is the sand and gravel part of the concrete mix. It’s what
the cement bonds to, and it gives the concrete substance and strength.
Smooth, stamped or broomed concrete hides the larger pieces of gravel
below the surface. The exposed aggregate method removes the top fine
layer so individual gravel pieces are visible on the surface.
With the exception of the concrete mix you order, the setup for
exposed aggregate is the same as with other finishes. “There’s nothing