Dave Burroughs, an owner of J.A. Norris Concrete, a company in Hollywood, Maryland, that installs epoxy-coated stone using products from Sierra Stone (sierrastone.ca), also looked at a picture of ...

Q: My front walkway is made up of a concrete base covered by a pebble mixture. Over the years, some of the pebbles have come loose and disappeared, and in two places the underlying concrete is ...