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Control joint strips shall be in accordance with NTMA Info Guide and shall
be [_____] mm inches deep, [_____] mm gauge thick and of [brass] [zinc].
Neoprene filler shall be [_____] mm inches thick in color as indicated [on
the drawings] [in Section 09915 COLOR SCHEDULE].
2.6
COLORANTS
Colorants shall be alkali-resistant and nonfading. Pigments shall be of
colors required to match NTMA Info Guide color plate indicated [on the
drawings] [in Section 09915 COLOR SCHEDULE].
2.7
CURING MATERIAL
Curing material shall be either liquid membrane-forming compound, wet sand,
polyethylene sheeting, or water. Liquid membrane-forming compound shall
conform to ASTM C 309, Type I. Polyethylene sheeting shall conform to ASTM
C 171.
2.8
TERRAZZO CLEANER
Terrazzo cleaner shall be biodegradable, phosphate free and shall have a pH
factor between 7 and 10 and be of a type specially prepared for use on
terrazzo.
2.9
SEALER
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NOTE: Include bracketed pH factor for
WESTNAVFACENGCOM projects only.
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Sealer shall [have
a pH factor between 7 and 10 and ]be a penetrating type
specially prepared
for use on terrazzo. The sealer shall not discolor or
amber the terrazzo
and shall produce a slip resistant surface. Flash point
of sealer shall be
in accordance with NTMA Info Guide.
2.10
SHEET MATERIALS
Sheet materials used for curing the terrazzo shall conform to ASTM C 171.
PART 3
EXECUTION
3.1
TERRAZZO PROPORTIONS
3.1.1
Underbed
Underbed shall be composed of one part
portland cement to [4] [4.5] parts
sand. Water shall be added to provide
workability at as low a slump as
possible. Spread to a level 13 mm 1/2
inch below the finished floor, to a
thickness of approximately 30 mm 1-1/4
inches.
3.1.2
Terrazzo Topping
Topping shall be composed of one 43 kg 94 pound bag of portland cement per
91 kg 200 pounds of marble chips and approximately 20 L 5 gallons of water.
Color pigment shall be added as needed but not to exceed 1 kg 2 pounds per
bag of cement. Water shall be added in sufficient quantity to provide
SECTION 09410
Page 7
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