Beginning to sand if dealing with a large space, it is crucial to work in sections, particularly when sanding by hand.

How to sand concrete patio. Continue to pass the orbital over the porch concrete to remove all bumps, hairline cracks, imperfections and to smooth the surface of the concrete to your liking. Smooth them down, float, towel, screed, and add joints if necessary. Scrape away the excess sand and cut off the excess landscape fabric with a utility knife.

Use the whitewood or 2x4s planks to set up the concrete pavers form and then pour the concrete in them. I used some quikrete crack sealant from home depot to fill the cracks. This video shows how i repaired a crack in a concrete slab in our patio.

If there are flaws in the concrete, use 80 to 120 grit. Sweep off the patio (or walkway) surface with a broom to remove any dirt or loose debris; Concrete should be reinforced to minimize patio cracking.

You should partition off areas of about a square meter to work on. People think that bulk bags of sharp sand are of 1 ton and that’s. Use the pressure washer to remove any debris between pavers.

The first step in the process is to clean the surface of the concrete by using a hose. Let your concrete surface dry again for the slurry to set in. For large jobs, use an orbital grinder.

Clear the concrete flooring you want to sand, remove the furniture and other things. You can use chalk, string, or tape to mark the area. Grid does a better job.