SPECIFICATIONS

MULTI POLISSAGE MONTREAL | SINCE 2002

TECHNICAL INFORMATION 

Disclaimer

Considering the multiple variations from the actual mix, region, finishing and curing methods then multiply this by design specifications. Then you will agree that concrete is by characteristic artistic in nature, Hence it would be unrealistic to expect otherwise. Therefore Multi Polissage Montreal assumes that concrete was mixed, poured, placed and finished in accordance with standards set by the (ACI) American Concrete institute, (PCA) Portland Cement Association and the (CSA) Canadian Standards Association, as well as the (ASTM) American standards for testing materials. As stated above Multi Polissage Montreal shall not be held liable for circumstances that are beyond our control.

DESCRIPTIONS

  • Samples

    The importance of a sample work can’t be overstated; as a policy we try to perform samples for each project we agree to. A sample will provide a fair reading for both the intended client and service provider. On occasions samples are just not possible due to schedules, locations and so on. In such cases we need to work with reliable data and history to determine a reasonable reading. Furthermore a written acceptance form must be signed by architects, designer, owners and the General‘s implemented in such cases. Project will be delayed until final approval has been documented.

  • Gloss Reading

    The combinations of floor flatness, smoothness and concrete treatment yield gloss unless intended otherwise. Because cement finishing has many variables, such as cement mixes, admixtures, temperatures, and actual workers. A precise throughout uniform reading is usually impossible unless these factors are properly controlled before the fact and not after.

  • Uniformity Cream Polish

    Concrete finishing because of curing methods and troweling is never uniform in color or texture, therefore achieving uniformity after diamond polishing can be a very difficult challenge. Is there a solution? Yes! Cement finishing contractor should take measures to distribute curing compounds evenly. Power troweling should be equally burnished throughout; caution should be taken not to over burnish. It is worth noting that humidity can also contribute to different shades on concrete. A good advice on moisture issues is to take preventative measures (Always take this monster seriously).

  • Uniformity Aggregate Finishes

    Concrete is a mix of water, cement, and a mix of fine and coarse aggregates once concrete has been poured, floated and troweled, the control of uniformity has already expired. Therefore we recommend that a for better chance of even spread of aggregates, that choice of aggregates should be no greater than 5-12 mil or 15-25 mils for a random exposure. We also recommend that for the case of aggregate finishes, that concrete polishing should be performed before divisions are made.

  • Edge Work

    In general edge work of concrete by default is usually rough and poorly troweled, if compared to main floor areas. We highly recommend that in accordance with the practice of concrete polishing that extra care be taken to prevent such defects. We also recommended that before any framework is done that the first few steps of polishing be performed. This method will yield a much better result at the end.

  • Cracks, Pits, Scaling, Levels, Stains

    Naturally we can't be held responsible for cracks, pits, scaling and levels of concrete or stains. These problems are usually directly related to the cement finishing, other sub-trades on premises or weather conditions can also contribute to damaged concrete.

    Concrete treatment (Sodium silicate) or (Lithium)


    It is highly recommended that each intended concrete to be polished be treated with a sodium silicate or Lithium, these penetrating sealing will seal the pores, density concrete and prevent dusting or contamination. Properly maintained these treatments can have an indefinite life span.

  • Stain Proof

    There are some good maintenance procedures and products available that will act as good stain retardants. However Spills that are acid or alkaline base should be wiped as soon as possible.

TIPS FOR FRESHLY POURED CONCRETE

(for floors that will be polished)

Concrete must be Portland cement and meet ASTM C150 (CSA362).
Freshly poured concrete must be cured for at least 28 days and have a minimum 25 MPA (3600psi).
A wet cure is strongly encouraged for an intended polish floor.
Metal fibres should be avoided and if necessary can be replaced with plastic fibres.(polypropylene) Metal can distort the finished product and are visible to the naked eye and can rust.
Concrete finishing should include strike-off, bull floating followed by machine troweling. Installing Expansion joint’s Is encouraged and should done as soon as machine trowel Is completed (soft cut)
Concrete installations should be at least 3 inches thick (75mils) with a preferred mix of fine aggregates.
Self levelling concrete should be minimum one quarter inch (25 mils)
Admixtures will not effect the polished floors, however air entrainments of more than 3% can cause miniatures air holes in concrete surface.
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