Exposed Aggregate Walk
Unlike the bigger jobs of pouring a patio or building a driveway, you needn't move a lot of earth or prepare extensive footings to build this type of walkway. You can work at your own pace, completing several sections one weekend, more the next.
Masonry dealers offer a variety of aggregates that vary by region. We used pea gravel uniform in size, but you might prefer the look of river pebbles, granite chips, or another option. As with any concrete project, timing plays a critical role in the outcome of an exposed-aggregate finish. Don't try to scrape away the concrete until the aggregate holds firm. If weather conditions are right, this stage should occur in about 1-1/2 hours, but it could take up to 6 hours. To test, lay a board on the surface and kneel on the board; if the board leaves marks, allow more time. If any aggregate dislodges when you start brushing, stop and let the concrete set some more. Finally slow curing is what gives concrete its strength, so wait a week or so before walking on it. Also, dampen the concrete daily as it cures.
What You Need:- 2x4s
- Sand
- Wire reinforcing mesh
- Wood sealer (optional)
- Concrete mix
- Aggregate
- Masonry tools
- Wire brush
- Goggles, gloves, protective clothing
