eliminate dust residue has to be captured floor has to be auto-scrubbed initial grinding - wet

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•Eliminate dust •Residue has to be captured •Floor has to be auto- scrubbed Initial Grinding - Wet

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• Eliminate dust• Residue has to be captured• Floor has to be auto-scrubbed

Initial Grinding - Wet

• Dust has to be captured• Particulate can be used for patching• Floor has to be vacuumed• Honing and polishing

always performed dry

Initial Grinding - Dry

Aggregate Exposure ClassesCLASS NAME

SURFACE CUT DEPTH

APPEARANCE

A Cream Very little Little aggregate exposure

B

Fine Aggregate (Salt and Pepper)

1/16 inch Fine aggregate exposure with little or no medium aggregate exposure at random locations

C Medium Aggregate

1/8 inch Medium aggregate exposure with little or no large aggregate exposure at random locations

D LargeAggregate

1/4 inch Large aggregate exposure with little or no fine aggregate exposure at random locations

Class A – Cream

Class B – Fine Aggregate (Salt & Pepper)

Class C – Medium Aggregate

Class D – Large Aggregate

• Holes• Surface damage• Air hole voids• Spalls • Small and micro cracks

Dust particulate can be mixed with patching material

Repairs

• Denser the concrete, the better the results

Densifying

• Hallmark characteristic of polished concrete is that the surface is harder, more durable, and more stain-resistant because of the densifier

Densifier reacts with excess calcium hydroxide to form calcium silicate hydrate to fill the capillaries left by hydration

Densifying

Coloring• Integral color in

concrete mix• Water-based

dyes• Acid stains• Solvent-based

stains

Honing and PolishingEver increasing abrasive grits used

to establish gloss levels

Gloss LevelsLEVEL NAME

REFLECTIVECLARITY

REFLECTIVESHEEN

GRITRANGE

MINIMUM NUMBER OF ABRASIVE PASSES

1Flat

[Ground]

Flat appearance with no to very slight diffused reflection

10to

100None to very low

15to80

Below 100

4

2Satin

[Honed]

Matte appearance with or without slight diffused reflection

Low to medium

100 to 400

5

3Semi-

Polished

Objects being reflected are not quite sharp and crisp but can be easily identified

Medium to high

800 and higher

6

4Highly-

Polished

Objects being reflected are sharp and crisp as would be seen in a mirror-like reflection

High to highest

7

• Degree of sharpness • Reflective crispness of overhead

objects

Reflective Clarity

• Viewed 5 ft. above and perpendicular

• ASTM D 5767

• Degree of gloss reflected from surface• Viewed 20 ft. from and at an angle• ASTM D 4039

Reflective Sheen