On Jan 27, 2:18 am, "emaalyon" wrote:
We placed concrete in our backyard about a month and a half ago. It was
a cold day and my husband rushed the finish because it was getting
dark. Things weren't setting up as quickly as we would have liked so he
went ahead and did the broom finish before it was ready. Now we have a
very rough surface. Anybody know a good way to smooth it out? Please
help!


You can rent a concrete grinder.

It's like a floor buffer on steroids.