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Finishing Guideline for Polished Concrete

General

 

Care must be taken during concrete finishing to avoid overworking, surface watering, chatter marks, and application of non-approved curing compounds that will blemish and/or weaken the surface. (For approved curing agents and methods, refer to PolishedCrete ready-mix specification). It is paramount to maintain consistent placement and finishing techniques throughout the pour without adding water to the surface as cloudiness, inconsistent strength and non-uniform appearance may result.

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Additional Considerations

For Slabs to Receive the PolishedCrete System

  • Concrete should be batched and placed in accordance with ACI standards.
  • Concrete should be hard steel troweled finished but not “burned”.
  • Maintain consistent water to cement ratio.
  • Ensure slump remains consistent and does not exceed five (5) inches.
  • Use a wood float as magnesium floats can entrap bleed water.
  • Finish edges first, and finish all surfaces within the same approximate timeframe.
  • Care should be taken not to overwork or trowel-burn edges.

 Do not over apply curing compounds, as a milky appearance will result.

 Do not topically apply water during finishing, as it will weaken the surface and can cause a washed out appearance.

 

Consult QC bulletin 22.102 for additional requirements for integrally colored concrete.

 

  • For best results - water cure the concrete for 3 to 7 days.

If more stringent ASTM guidelines (e.g. 1315) are required, contact PolishedCrete for additional recommendations if curing compounds must be used. Do not over-apply as a milky appearance will result.

 

WARNING: If you do not follow all PolishedCrete specifications, your floor may not turn out properly. All concrete reacts differently therefore, inconsistencies should be expected and no sample can be exactly matched. 






Polished-Crete
(800)350-6021

info@Polished-Crete.com


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