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How to Install Pavers Over an Aggregate Patio

By Aurora LaJambre ; Updated September 21, 2017
The colors and pattern of pavers lend a cozy atmosphere to a patio.

An aggregate patio is a concrete surface that has had the outer layer of cement paste removed to show the course aggregate beneath. Its skid resistance and durability make aggregate a practical choice for a patio, but if you don't like the appearance, you can install pavers over it. Laying pavers over the surface re-purposes the aggregate as a strong foundation.

Clean the aggregate surface of debris with a scrub brush and mild laundry detergent. If you see any grease stains, scrub them with a concrete stain remover. Hose off all soap and stain remover and let the surface dry.

Dry-lay your pavers over a section of the aggregate to practice the pattern you want to use, allowing a 1/2-inch of space in between each paver.

Mix four parts sand and one part cement with water until the mixture is stiff, not soupy.

Spread 1 inch of sand mortar over the aggregate with a trowel, enough to lay four pavers at a time.

Place the pavers into the mortar following your pattern and spaced ½-inch apart. Level the pavers using the handle of the trowel, and press them ½-inch into the mortar. Remove excess mortar and spatters from the pavers as you go using the trowel or a clean, moist cloth. Let the pavers set in the mortar for two days.

Mix grout in a bucket with one part sand, one part cement and a small amount of water so it is stiffer than the sand mortar.

Pack the grout between the pavers with the edge of the trowel, removing excess as you work. Use a concave jointing tool between the joints to make the surface smooth and neat.

 

Things You Will Need

  • Scrub brush
  • Mild laundry detergent
  • Concrete stain remover
  • Hose
  • Sand
  • Cement
  • Trowel
  • Cloth
  • Bucket
  • Concave jointing tool

About the Author

 

Aurora LaJambre is a writer and editor living in Brooklyn, N.Y. For over five years she's covered topics in culture, lifestyle, travel, DIY design and green living for print and online media. Her publication credits include "WOW Women on Writing," "Six States" and Catalogs.com. She graduated from New York University in 2003 with a Bachelor of Fine Arts in creative writing.