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   How to:  Clean  |  Seal  |  Restore

              Exposed Aggregate Concrete

      Sealing - Cleaning - Problem Solving - Protection - Care

help with flooring
exposed aggregate designs      exposed aggregate designs

  Exposed Aggregate Concrete Cleaning and Sealing      exposed aggregate designs

Can be installed indoors as well as outdoors.

An exposed aggregate surface is created by using an acid wash to the surface of a concrete slab to eat away the cement film at the surface and expose the faces of decorative pebbles that were used in the concrete batch. The pebbles are usually very dense and are now surrounded by relatively porous concrete.

See concrete installation tips below.

There is no need for confusion or problems brought about by misidentification of a surface type, yet it happens all too often. If you would like to see why this is the case and how to properly identify a surfacing material ..... Click here

If you are concerned about doing it yourself - consider that the satisfaction of a project is directly related to your knowledge of what needs to be done and how. Who actually does the work is less important. We estimate that 25% of the usage of Aldon products is by "do it yourself" homeowners and we know they are happy because we hear from them.

MATERIAL DESCRIPTION - With Identifying Characteristics

Typical absorption range =
pebbles are low - concrete is
high

Testing your surfacing for absorption rate

Testing for acid sensitivity

Note this on your worksheet for later reference

  • Pebbles are usually part of the wet concrete batch, then revealed after curing with an acid wash.

  • Another method is broadcasting the pepples on top of the newly poured concrete and tamped into place.

  • The density of the pebbles dictates a low solids sealer. Therefore, review "SBS Sealer" (will enhance the colors) and "Same Day Sealer" (no color enhancement).
exposed aggregate driveway

CONCRETE INSTALLATION TIPS:

  • Certain conditions that accelerate the drying process of freshly poured concrete (heat, wind, waterproof underlayment) can create two preventable conditions:
    • Surface or deeper shrinkage cracks.
    • Lower ultimate strength concrete
    Both are preventable by using a "curing compound" that slows down the water evaporation process. Note that Aldon Same Day Sealer provides both the sealing and the curing compound effects without any change to color or finish of the concrete. And, it can be applied any time for the sealing benefits, or the same day or the next day on the freshly poured and finished concrete to also get the curing compound benefits.

 

PROTECTION:

Unprotected exposed aggregate concrete will get gradually dirtier and dirtier over the years. It is worth considering sealing it early on to keep it looking like new.

The golden rule here is to choose the sealer for the least absorbent of the materials - the pebbles. Using the category of "Dense: Tile - Brick - Slate - Stone" on the How To Choose The Best Sealer For Your Project  will accomplish the proper sealing, without excess buildup on the denser aggregate surfaces. High sealer buildup on the usually rounded aggregate surfaces may show traffic wear faster.

Some installations of this surfacing can be very absorbent and will tend to soak up a lot of sealer if you just keep pouring it on. Too decrease the amount of sealer required - click here

ADVANTAGES TO THIS MATERIAL
  • One of the most maintenance free floorings available.
  • Dense, tough paving
  • Colors can be deep and rich depending on sealer
  • Many choices for finishing gloss - from none to high gloss
CONSIDERATIONS      (All Are Preventable!)

(Click links for Aldon's solutions to these issues!)

  • Efflorescence (subsurface originating white powdery stains) can occur. However, it is easily cleaned.
  • Colors can "fade". The appearance of fading is actually from light efflorescence and can be stopped by sealing with the appropriate Aldon sealer.
  • A few pebbles will inevitably come loose.  This is normal, however, can be minimized by using one of our sealers classified as "densifying".

Following are recommendations for products you may need (in sequence of use ) for whichever of the categories applies to you. Please review each and mark your printed worksheet accordingly.

Layed, But Not Grouted

  1.  Grout Easy
  2. Efflorescence            Treatment       
  3. Grout Residue
               Remover  
    (should not be needed after using Grout Easy)     
Grouted, But Not Sealed
  1. Grout Residue
               Remover     
  2.  Efflorescence            Treatment       
  3. .............Sealer ( see below )
  4. Lifeguard
  5. Care ...........

Sealer Has Been Applied

Important! - First - Click here!

  1. Aldon Products Premium Stripper
  2. ...........Cleaners   ?
  3. ...........Sealer ( see below )
  4. Lifeguard
  5. Care ..........

An Aldon sealer does far more than just bead water and look pretty! To see what that is click here.

Other care products you might need for this surface type


Insta-Clean

Maintain

Dust Whiz

Important: If your project has had any sealer applied in the past, it must be evaluated differently. To see why, Click here!

* Note:       will add another level of gloss to any sealed surfaces.
It also prevents traffic wear to the sealers finish.

Aldon is a supporter of
Intermountain Childrens Home
Click here to learn about
Intermountain Children's Home

 

 

 

 

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