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SECTION 03 35 43 Updated April 6, 2011
C.
Application of finish system shall take place a minimum of 21 days prior to
fixture and trim installation and/or substantial completion.
D.
Finish Concrete area shall be closed to traffic during finish floor application
and after application, for the time as recommended by manufacturer.
1.09
CONCRETE MIX DESIGN
Note to specifier:
1.
Minimum concrete compressive strength should be 3,500 psi.
2.
Normal Weight concrete, No light weight aggregate.
3.
Non-Air entrained.
4.
Natural Concrete slump of 4 ½ to 5”, Admixtures may be used.
5.
Flatness requirements:
a.
Overall Ff 40
b.
Local Ff 20
c.
Overall FL not required
d.
Local FL not required
2.
Tight Hard Troweled (three passes) concrete. No burn marks.
Reference ACI 302.1R, class 5 or class 6 floor.
3.
Curing: Options:
a.
ASTM C 309 Membrane forming curing
compound
i.
No acrylic curing and sealing
compounds.
b.
ASTM C 171 Sheet membrane
c.
Damp curing, seven-day cure.
PART 2 PRODUCTS AND MANUFACTURERS
2.01
ACCEPTABLE PRODUCTS AND MANUFACTURERS
A.
3 or 6 head planetary rotating InovaCrete
®
approved floor grinder with at least
300 pounds of down pressure. For example: Lavina 25 Pro, Lavina 25N Pro,
Lavina 32 Pro by Superabrasive, Inc.
B.
Dust extraction system for above grinders incorporating HEPA filter(s)
capable of containing airborne dust.
C.
Hand or edge grinders with dust extraction or dust suppression attachment.
