If you plan to use exposed aggregate in recently laid concrete as a public walk way surface, Ultra High Pressure Water Blasting is a process to achieve that finish faster and cheaper.

If in your design plan you have used abrasive blasting to expose aggregate in the past and have opted to compromise your design plan for a more environmentally finished option, then this could be the breakthrough you have been looking for.

Please see images below:

Concrete Before

 Exposed Aggregate After

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After exposing aggregate 

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