x
 
 
Learn which plants thrive in your Hardiness Zone with our new interactive map!

How to Pour Concrete on Sand

By Marsanne Petty ; Updated September 21, 2017

Patios can turn out really well when concrete is poured over sand. With the sand properly leveled, the patio will be relatively flat, a perfect space for chairs and a small table for entertaining.

Mark the boundaries of your sand area with a chalk line from a building supply store.

Create a concrete curb by placing the 2x10 form boards around the perimeter of the sand area, about 6 inches higher than the top of the poured concrete. The boards will help keep the concrete from escaping your sand area.

Hammer the stakes into the ground at equal intervals (about 12 inches) using double headed nails. The stakes should be directly against the 2x10 form boards to hold them steady.

Dampen your sandy area and use a rake to smooth it out. The smoother the sand is, the smoother the concrete area will be after it is poured.

Spray the form boards thoroughly with diesel fuel so the concrete will not adhere to the wood. The diesel fuel must be completely dry before continuing.

Using ½ rebar rods, construct a grid on your sand area, forming 16-inch squares inside the boundary. You will need to lay one layer vertically and then another layer horizontally.

Tie the rebar pieces together with rebar wire, so the squares do not shift when you pour the concrete on top of them.

Pour concrete onto the sandy area, keeping it inside the form boards.

Allow the concrete to set for three or four days, and then remove the 2x10 form boards.

 

Things You Will Need

  • Concrete
  • Chalk line
  • 2x10 form boards
  • Hammer
  • Double headed nails
  • 12-inch wooden stakes
  • ½ inch rebar rods
  • Rebar wire
  • Diesel fuel
  • Water hose
  • Rake

References

About the Author

 

Marsanne Petty has been a writer and photographer for over ten years, and is currently pursuing the combination in tandem. She attended Madison Community College, receiving a degree in Administration. She has published several articles for magazines, including Jack Magazine, and the local newspaper, the Jasper News. Her latest creation, a pictoral history of Hamilton County, Florida, was published in early 2009 through Arcadia Publishing.