SECTION 04 72 00
CAST STONE
Display hidden notes to specifier. (Don't know how? Click Here)
Copyright 2012 - 2015 ARCAT, Inc. - All rights reserved
PART 1 GENERAL
1.1
1.2
1.3
SECTION INCLUDES
A.
Custom cast stone veneer. (Custom Series).
B.
Cast stone veneer. (Heartland Series).
RELATED SECTIONS
A.
Section 03 30 00 - Cast-in-Place Concrete.
B.
Section 04 05 13.23 - Surface Bonding Masonry Mortaring.
C.
Section 04 05 16.26 - Engineered Masonry Grouting.
D.
Section 04 20 00 - Unit Masonry.
E.
Section 04 22 23.29 - Split-Face Concrete Unit Masonry.
F.
Section 04 22 00.16 - Surface-Bonded Concrete Unit Masonry.
G.
Section 05 40 00 - Cold-Formed Metal Framing.
H.
Section 05 50 00 - Metal Fabrications.
I.
Section 06 10 00 - Rough Carpentry.
J.
Section 06 16 36 - Wood Panel Product Sheathing.
K.
Section 07 10 00 - Dampproofing and Waterproofing.
L.
Section 07 60 00 - Flashing and Sheet Metal.
M.
Section 07 62 00 - Sheet Metal Flashing and Trim.
N.
Section 07 65 26 - Self-Adhering Sheet Flashing.
O.
Section 07 90 00 - Joint Protection.
P.
Section 09 26 00 - Veneer Plastering.
REFERENCES
A.
American Concrete Institute (ACI): ACI 530 - Building Code Requirements for Masonry
Structures.
04 72 00-1
1.4
B.
ASTM International (ASTM):
1.
ASTM A 615/A 615M - Standard Specification for Deformed and Plain Carbon-Steel
Bars for Concrete Reinforcement.
2.
ASTM A767/A767M - Standard Specification for Zinc-Coated (Galvanized) Steel Bars
for Concrete Reinforcement.
3.
ASTM C 33 - Standard Specification for Concrete Aggregates.
4.
ASTM C 140 - Standard Test Methods for Sampling and Testing Concrete Masonry
Units and Related Units.
5.
ASTM C 150 - Standard Specification for Portland Cement.
6.
ASTM C 260 - Standard Specification for Air-Entraining Admixtures for Concrete.
7.
ASTM C 270 - Standard Specification for Mortar for Unit Masonry.
8.
ASTM C 426 - Standard Specification for Linear Drying Shrinkage of Concrete
Masonry Units.
9.
ASTM C 494 - Standard Specification for Chemical Admixtures for Concrete.
10.
ASTM C 618 - Standard Specification for Coal Fly Ash and Raw or Calcined Natural
Pozzolan for use as a Mineral Admixture in Concrete.
11.
ASTM C 666 - Standard Test Method for Resistance of Concrete to Rapid Freezing
and Thawing.
12.
ASTM C 979 - Standard Specification for Pigments for Integrally Colored Concrete.
13.
ASTM C 989 - Standard Specification for Slag Cement for Use in Concrete and
Mortars.
14.
ASTM C 1194 - Standard Specification for Compressive Strength of Architectural Cast
Stone.
15.
ASTM C 1195 - Standard Specification for Absorption of Architectural Cast Stone.
16.
ASTM C 1364 - Standard Specification for Architectural Cast Stone.
C.
Architectural Precast Association (APA): Factory certification.
D.
Cast Stone Institute: Technical Manual.
E.
National Concrete Masonry Association (NCMA):
1.
NCMA TEK Bulletin 5-2A - Clay and Concrete Masonry Banding Details" for
guidelines.
2.
NCMA TEK Bulletin 10-1A - Design of Concrete Masonry for Crack Control.
3.
NCMA TEK Bulletin 10-2C - Control Joints for Concrete Masonry Walls - Empirical
Method.
4.
NCMA TEK Bulletin 10-4 - Crack Control for Concrete Brick and Other Concrete
Masonry Veneers.
5.
NCMA TEK Bulletin 3-6B - Concrete Masonry Veneers.
SUBMITTALS
A.
Submit under provisions of Section 01 30 00 - Administrative Requirements.
B.
Product Data: Manufacturer's data sheets for each assembly specified, including but not
limited to:
1.
Preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation Instructions.
C.
Shop Drawings: Submit manufacturer's shop drawings showing details including but not
limited to profiles, cross sections, modular unit lengths, reinforcement, exposed faces, joint
widths, anchors, anchoring method recommendations, annotation of cast stone types, and
locations of returns and finished ends.
D.
Test Results: Submit manufacturer's test results from cast stone units previously made by
manufacturer using materials from same sources proposed for use in project.
04 72 00-2
E.
1.5
1.6
Verification Samples: For each product specified, two samples representing actual product
colors and textures specified; samples demonstrating variation of texture and color.
QUALITY ASSURANCE
A.
Manufacturer Qualifications: As acceptable to Heritage Cast Stone, and a member in good
standing of the Cast Stone Institute and as follows:
1.
Minimum of 10 years experience in producing masonry units or cast stone.
2.
Manufacturer with sufficient plant facilities and capabilities to provide specified quality,
shapes, quantity, and sizes of cast stone units without delaying progress of the Work.
3.
Production Quality Control: Manufacturer shall have an internal Quality Assurance
Testing Program with certified laboratory technicians as follows
a.
Mix Designs: Test new and existing mix designs for applicable compressive
strength and absorption compliance before manufacturing cast stone units.
b.
Plant Production Testing: Test compressive strength and absorption from
specimens selected at random from plant production. Tests to be conducted by
certified laboratory testing technicians; in accordance with ASTM C 1194 and
ASTM C 1195.
B.
Mock-Up: Provide full-size cast stone units for use in construction of mock-ups.
1.
Finish areas designated by Architect.
2.
Do not proceed with remaining work until texture, color, fit of adjacent units, quality of
workmanship is approved by Architect.
3.
Rework mock-up area as required to produce acceptable work.
4.
Approved mock-ups shall be the standard for appearance, workmanship for project.
5.
Approved mock-ups may be incorporated as part of the completed work.
6.
Approved mock-ups may not be incorporated as part of the completed Work; demolish
mock-ups and remove debris.
DELIVERY, STORAGE AND HANDLING
A.
Delivery:
1.
Deliver cast stone units secured to shipping pallets and protected from damage and
discoloration.
2.
Provide itemized shipping list.
3.
Number each piece individually, as required, to match shop drawings and schedules.
4.
Inspection of Materials: Upon delivery, by Owner or Owner's representative.
a.
Texture: Approximately equal to approved sample when viewed in direct
daylight at 10 feet (3 m).
b.
Surface Air Voids: Not obvious under direct daylight at 10 feet (3 m).
c.
Color Variation: Compare in direct daylight at 10 feet, between units of similar
age, subjected to similar weathering conditions.
d.
Minor Chipping: Minor chips shall not be obvious under direct daylight at 20
feet, chipping resulting from shipping and delivery shall not be grounds for
rejection of units.
e.
Crazing or Efflorescence: The occurrence of crazing or efflorescence shall not
constitute a cause for rejection.
B.
Storage:
1.
Store cast stone units and installation materials in accordance with manufacturer's
instructions.
2.
Store cast stone units on pallets with nonstaining, waterproof covers.
3.
Do not double stack pallets.
4.
Ventilate units under covers to prevent condensation.
5.
Prevent contact with dirt and splashing.
C.
Handling:
04 72 00-3
1.
2.
3.
1.7
PROJECT CONDITIONS
A.
1.8
Maintain environmental conditions (temperature, humidity, and ventilation) within limits
recommended by manufacturer for optimum results. Do not install products under
environmental conditions outside manufacturer's recommended limits.
SEQUENCING AND SCHEDULING
A.
1.9
Protect cast stone units, including corners and edges, during storage, handling, and
installation to prevent chipping, cracking, staining, or other damage.
Handle long units at center and both ends simultaneously to prevent cracking.
Do not use pry bars or other equipment in a manner that could damage units.
Conference: Convene a pre-installation conference to establish procedures to maintain
optimum working conditions and to coordinate this work with related and adjacent work.
WARRANTY
A.
Manufacturer's Warranty: Standard 15 year limited warranty against defects in materials and
workmanship.
PART 2 PRODUCTS
2.1
2.2
MANUFACTURERS
A.
Acceptable Manufacturer: Heritage Cast Stone , which is located at: 2400 Allen Terrace;
Kansas City, MO 64108; Tel: 855-709-7696; Fax: 816-474-5022; Email:request info
(info@hertitagecaststone.com); Web:www.heritagecaststone.com
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of Section 01 60
00 - Product Requirements.
CAST STONE MATERIALS
A.
Portland Cement: ASTM C 150, Type I or III. White or gray as required for specified color.
B.
Coarse Aggregates: ASTM C 33, except for gradation; granite, quartz, or limestone.
C.
Fine Aggregates: ASTM C 33, except for gradation; manufactured or natural sands.
D.
Pigments: ASTM C 979, except do not use carbon black pigments; inorganic iron oxide
pigments.
E.
Admixtures:
1.
Water Reducing, Retarding, and Accelerating Admixtures: ASTM C 494.
2.
ASTM C 260 for air-entraining admixtures.
3.
Other admixtures: integral water repellents and other chemicals, for which no ASTM
Standard exists, shall be previously established as suitable for use in concrete by
proven field performance or through laboratory testing.
4.
ASTM C 618 for mineral admixtures.
5.
ASTM C 989 for ground granulated blast-furnace slag.
F.
Water: Potable.
G.
Reinforcing Bars: ASTM A 615, deformed steel bars. Epoxy coated or galvanized when
covered with less than 1-1/2 inches of material.
04 72 00-4
1.
H.
2.3
2.4
Galvanized Coating: ASTM A 767.
Ancillary Installation Products: Materials not incorporated into composition of cast stone.
1.
Anchors: As scheduled or indicated on Drawings.
2.
Anchors: Brass, non-corrosive, sized for conditions.
3.
Anchors: Hot-dip galvanized steel, sized for conditions.
4.
Anchors: Type 304 stainless steel, sized for conditions.
5.
Cleaners: Prosoco Enviro Klean Safety Klean.
6.
Cleaners: Prosoco Sure Klean 600 Detergent.
7.
Mortar Materials: ASTM C 270, Type N.
8.
Mortar Materials: As specified in Section 04 05 13.23 - Surface Bonding Masonry
Mortaring.
9.
Mortar Materials: As specified in Section 04 20 00 - Unit Masonry.
10.
Mortar Materials: As specified in Section 04 22 23.29 - Split-Face Concrete Unit
Masonry.
11.
Sealants: As specified in Section 07 91 26 - Joint Fillers.
12.
Sealer: Prosoco Sure Klean Weather Seal Siloxane WB.
13.
Sealer: Prosoco Sure Klean Weather Seal Siloxane PD.
CAST STONE - GENERAL
A.
Fabrication of Cast Stone Shapes: Unless otherwise indicated on Drawings, provide:
1.
Suitable wash on exterior sills, copings, projecting courses, and units with exposed
top surfaces.
2.
Drips on projecting units, wherever possible.
B.
Tolerances: Manufacture cast stone within tolerances in accordance with Cast Stone
Institute Technical Manual, unless otherwise specified.
1.
Cross Section Dimensions: Do not deviate by more than plus or minus 1/8 inch from
approved dimensions.
2.
Length of Units: Do not deviate by more than length/360 or plus or minus 1/8 inch,
whichever is greater, not to exceed plus or minus 1/4 inch.
3.
Warp, Bow, or Twist: Do not exceed length/360 or plus or minus 1/8 inch, whichever is
greater.
C.
Curing:
1.
Initial Curing: As determined by manufacturer to meet design requirements.
2.
Initial Curing: In an enclosed chamber at 95 percent relative humidity at 100 degrees
F for 12 hours.
3.
Initial Curing: In an enclosed chamber at 95 percent relative humidity at minimum 70
degrees F for 16 hours.
4.
Additional Yard Curing: 350 degree-days, such as 7 days at 50 degrees F or 5 days at
70 degrees F.
ARCHITECTURAL SERIES CAST STONE VENEER
A.
Architectural Series Cast Stone Veneer: Heritage Cast Stone Architectural Series as
manufactured by Heritage Cast Stone.
1.
Compliance: Cast stone meeting or exceeding requirements of ASTM C 1364.
a.
Compressive Strength (ASTM C 1194): Minimum 6,500 psi at 28 days.
b.
Absorption (ASTM C 1195): Maximum 6 percent, cold water method, at 28
days.
c.
Linear Shrinkage (ASTM C 426): Less than .065 percent.
d.
Density (ASTM C 140): Greater than 120 pounds per cubic foot.
e.
Freeze-Thaw (ASTM C 666): Less than 5 percent cumulative mass loss after
300 cycles.
f.
Color Variation:
04 72 00-5
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
1)
Total Color Difference: ASTM C 1364, 6 units.
2)
Hue Difference: ASTM C 1364, 2 units.
Description: Architectural masonry units manufactured to copy fine grain texture and
color of natural cut stone used in unit masonry applications.
Dry Cast Concrete Products: Manufactured from zero-slump concrete.
Wet Cast Concrete Products: Manufactured from measurable slump concrete.
Texture of Exposed Surfaces:
a.
Surface Texture: As scheduled or indicated on Drawings.
b.
Surface Texture: Smooth finish; fine-grained texture similar to natural stone .
c.
Surface Texture: Rock finish.
d.
Surface Texture: Chisel finish.
e.
Surface Texture: Hammered finish.
f.
Surface Texture: Chamfer finish.
Surface Air Voids:
a.
Size: Maximum 1/32 inch (0.8 mm).
b.
Density: Less than 3 occurrences per any 1 square inch (645 square mm).
Color: Custom, _______________.
Color: As indicated on Drawings
Color: Dakota.
Color: Buff.
Color: Buckskin.
Color: Graystone.
Color: Gunpowder.
Color: Graham.
Color: Snowcap.
Color: Sand Dune.
Color: Wheat.
Color: Terra Cotta.
Color: Leather.
Color: Coal.
Configurations and Locations: As indicated on Drawings.
Product Type: As scheduled or indicated on Drawings.
Product Type: Sills.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: SIL 10.
c.
Item Number: SIL 20.
d.
Item Number: SIL 30.
e.
Item Number: SIL 10-458.
Product Type: Sills / bands.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: BND 20 BN.
c.
Item Number: BND 20 BNR.
d.
Item Number: BND 20 BNL.
e.
Item Number: BND 30 BN.
f.
Item Number: BND 30 BNR.
g.
Item Number: BND 30 BNL.
h.
Item Number: BLN 05.
i.
Item Number: BLN 05 RL.
j.
Item Number: BLN 10.
k.
Item Number: BLN 10 RL.
l.
Item Number: BLN 20.
m.
Item Number: BLN 20 RL.
n.
Item Number: BLN 30.
o.
Item Number: BLN 30 RL.
Product Type: Smooth bands.
a.
Item Number: As scheduled or indicated on Drawings
04 72 00-6
26.
27.
28.
29.
30.
31.
32.
b.
Item Number: BND 20 F.
c.
Item Number: BND 30 F.
d.
Item Number: BND 40 F.
e.
Item Number: BND 50 F.
f.
Item Number: BND 60 F.
Product Type: Chamfered bands.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: BND 30 C.
c.
Item Number: BND 30 CL.
d.
Item Number: BND 30 CR.
e.
Item Number: BND 60 C.
f.
Item Number: BND 60 CL.
g.
Item Number: BND 60 CR.
h.
Item Number: BND 10 DC.
i.
Item Number: BND 10 DC RL.
j.
Item Number: BND 20 DC.
k.
Item Number: BND 20 DC RL.
l.
Item Number: BND 30 DC.
m.
Item Number: BND 30 DC RL.
n.
Item Number: BND 40 DC.
o.
Item Number: BND 40 DC RL.
p.
Item Number: BND 50 DC.
q.
Item Number: BND 50 DC RL.
r.
Item Number: BND 60 DC.
s.
Item Number: BND 60 DC RL.
Product Type: Smooth lug sills.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: SIL 120 LR.
c.
Item Number: SIL 20 LL.
d.
Item Number: SIL 1030 LR.
e.
Item Number: SIL 1030 LL.
Product Type: Chamfered lug sills.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: SIL 20 LCR.
c.
Item Number: SIL 20 LCL.
d.
Item Number: SIL 30 LCR.
e.
Item Number: SIL 30 LCL.
Product Type: Water tables.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: WTB 30.
c.
Item Number: WTB 30 R.
d.
Item Number: WTB 30 L.
e.
Item Number: WTB 30 BN.
f.
Item Number: WTB 30 BNR.
g.
Item Number: WTB 30 BNL.
Product Type: Smooth surrounds.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: SUR 20 F.
c.
Item Number: SUR 30 F.
Product Type: Chamfered surrounds.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: SUR 20 DC.
c.
Item Number: SUR 30 DC.
Product Type: Smooth jack arches.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: JAS 30 F.
04 72 00-7
33.
34.
35.
36.
37.
38.
39.
c.
Item Number: JAS 40 F.
d.
Item Number: JAS 41 F.
e.
Item Number: JAW 30 F.
f.
Item Number: JAW 40 F.
g.
Item Number: JAW 41 F.
Product Type: Chamfered jack arches.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: JAS 30 C.
c.
Item Number: JAS 41 C.
d.
Item Number: JAW 40 C.
e.
Item Number: JAW 41 C.
Product Type: Smooth keystones.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: KEY 30 F.
c.
Item Number: KEY 40 F.
d.
Item Number: KEY 50 F.
e.
Item Number: KEY 60 F.
Product Type: Chamfered keystones.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: KEY 30 C.
c.
Item Number: KEY 40 C.
d.
Item Number: KEY 50 C.
e.
Item Number: KEY 60 C.
Product Type: Smooth medallions.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: MED 30 F.
c.
Item Number: MED 40 F.
d.
Item Number: MED 41 F.
e.
Item Number: MED 50 F.
f.
Item Number: MED 60 F.
Product Type: Chamfered medallions.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: MED 30 C.
c.
Item Number: MED 40 C.
d.
Item Number: MED 41 C.
e.
Item Number: MED 50 C.
f.
Item Number: MED 60 C.
Product Type: Pyramid pier caps.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: PPC 12.
c.
Item Number: PPC 14.
d.
Item Number: PPC 16.
e.
Item Number: PPC 18.
f.
Item Number: PPC 20.
g.
Item Number: PPC 22.
h.
Item Number: PPC 24.
i.
Item Number: PPC 26.
Product Type: Copings / caps.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: COP 10 SS.
c.
Item Number: COP 10 SSOR.
d.
Item Number: COP 10 SSIR.
e.
Item Number: COP 10 SSOL.
f.
Item Number: COP 10 SSIL.
g.
Item Number: COP 12 SS.
h.
Item Number: COP 12 SSOR.
04 72 00-8
40.
41.
42.
43.
44.
2.5
i.
Item Number: COP 12 SSIR.
j.
Item Number: COP 12 SSOL.
k.
Item Number: COP 12 SSIL.
l.
Item Number: COP 14 SS.
m.
Item Number: COP 14 SSOR.
n.
Item Number: COP 14 SSIR.
o.
Item Number: COP 14 SSOL.
p.
Item Number: COP 14 SSIL.
q.
Item Number: COP 16 SS.
r.
Item Number: COP 16 SSOR.
s.
Item Number: COP 16 SSIR.
t.
Item Number: COP 16 SSOL.
u.
Item Number: COP 16 SSIL.
v.
Item Number: COP 18 SS
w.
Item Number: COP 18 SSOR
x.
Item Number: COP 18 SSIR
y.
Item Number: COP 18 SSOL
z.
Item Number: COP 18 SSIL.
Product Type: Smooth quoins, sized to set flush with brick.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: QSF 6004F.
c.
Item Number: QSF 6008F.
d.
Item Number: QSF 6012F.
e.
Item Number: QSF 6016F.
Product Type: Smooth quoins, sized to project 1 inch (25 mm) from brick.
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: QSX 6004F.
c.
Item Number: QSX 6009F.
d.
Item Number: QSX 6012F.
e.
Item Number: QSX 6017F.
Product Type: Chamfered quoins:
a.
Item Number: As scheduled or indicated on Drawings
b.
Item Number: QSX 6004C.
c.
Item Number: QSX 6009C.
d.
Item Number: QSX 6012C.
e.
Item Number: QSX 6017C.
Product Type: Lintels.
a.
Item Number: ____________.
b.
Item Number: As scheduled or indicated on Drawings
Product Type: Sign panels.
a.
Item Number: ____________.
b.
Item Number: As scheduled or indicated on Drawings
CAST STONE VENEER (HEARTLAND SERIES)
A.
Cast Stone Veneer: Heritage Cast Stone Heartland Series as manufactured by Heritage
Cast Stone.
1.
Compliance: Cast stone meeting or exceeding requirements of ASTM C 1364.
a.
Compressive Strength (ASTM C 1194): Minimum 6,500 psi at 28 days.
b.
Absorption (ASTM C 1195): Maximum 6 percent, cold water method, at 28
days.
c.
Linear Shrinkage (ASTM C 426): Less than .065 percent.
d.
Density (ASTM C 140): Greater than 120 pounds per cubic foot.
e.
Freeze-Thaw (ASTM C 666): Less than 5 percent cumulative mass loss after
300 cycles.
f.
Color Variation:
04 72 00-9
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
1)
Total Color Difference: ASTM C 1364, 6 units.
2)
Hue Difference: ASTM C 1364, 2 units.
Surface Texture: As scheduled or indicated on Drawings.
Surface Texture: Smooth finish.
Surface Texture: Rock finish.
Surface Texture: Chisel finish.
Surface Texture: Hammered finish.
Surface Texture: Chamfer finish.
Item Number: As scheduled or indicated on Drawings.
Item Number: HCS-0424.
a.
Nominal Dimensions:
1)
Depth: 4 inches.
2)
Height: 4 inches.
3)
Length: 24 inches.
b.
Actual Dimensions:
1)
Depth: 3-5/8 inches (92 mm).
2)
Height: 3-5/8 inches (92 mm).
3)
Length: 23-5/8 inches (600 mm).
Item Number: HCS-0824.
a.
Nominal Dimensions:
1)
Depth: 4 inches.
2)
Height: 8 inches.
3)
Length: 24 inches.
b.
Actual Dimensions:
1)
Depth: 3-5/8 inches (92 mm).
2)
Height: 7-5/8 inches (194 mm).
3)
Length: 23-5/8 inches (600 mm).
Item Number: HCS-0832.
a.
Nominal Dimensions:
1)
Depth: 4 inches.
2)
Height: 8 Inches.
3)
Length: 32 inches.
b.
Actual Dimensions:
1)
Depth: 3-5/8 inches (92 mm).
2)
Height: 7-5/8 inches (194 mm).
3)
Length: 31-5/8 inches (803 mm).
Item Number: HCS-1224.
a.
Nominal Dimensions:
1)
Depth: 4 inches.
2)
Height: 12 inches.
3)
Length: 24 inches.
b.
Actual Dimensions:
1)
Depth: 3-5/8 inches (92 mm).
2)
Height: 11-5/8 inches (295 mm).
3)
Length: 23-5/8 inches (600 mm).
Item Number: HCS-1624.
a.
Nominal Dimensions:
1)
Depth: 4 inches.
2)
Height: 16 inches.
3)
Length: 24 inches.
b.
Actual Dimensions:
1)
Depth: 3-5/8 inches (92 mm).
2)
Height: 15-5/8 inches (397 mm).
3)
Length: 23-5/8 inches (600 mm).
Item Number: HCS-1632.
a.
Nominal Dimensions:
04 72 00-10
15.
16.
17.
18.
19.
20.
21.
22.
23.
1)
Depth: 4 inches.
2)
Height: 16 inches.
3)
Length: 32 inches.
b.
Actual Dimensions:
1)
Depth: 3-5/8 inches (92 mm).
2)
Height: 15-5/8 inches (397 mm).
3)
Length: 31-5/8 inches (803 mm).
Finished Ends: 1 face, 1 end; for use with 23-5/8 (600 mm) units.
a.
Nominal Dimensions:
1)
Depth: 4 inches.
2)
Height: 8 inches.
3)
Length: 16 inches.
b.
Actual Dimensions:
1)
Depth: 3-5/8 inches (92 mm).
2)
Height: 7-5/8 inches (194 mm).
3)
Length: 15-5/8 inches (397 mm).
Finished Ends: 1 face, 1 end; for use with 31-5/8 (803 mm) units.
a.
Nominal Dimensions:
1)
Depth: 4 inches.
2)
Height: 8 inches.
3)
Length: 20 inches.
b.
Actual Dimensions:
1)
Depth: 3-5/8 inches (92 mm).
2)
Height: 7-5/8 inches (194 mm).
3)
Length: 19-5/8 inches (499 mm).
Thin Veneer Size:
a.
Actual Dimensions:
1)
Depth: 1-1/4 inches (32 mm).
2)
Height: 3-5/8 inches (92 mm).
3)
Length: 23-5/8 inches (600 mm).
Thin Veneer Size:
a.
Actual Dimensions:
1)
Depth: Depth: 1-1/4 inches (32 mm).
2)
Height: 7-5/8 inches (194 mm).
3)
Length: 23-5/8 inches (600 mm).
Thin Veneer Size:
a.
Actual Dimensions:
1)
Depth: 1-1/4 inches (32 mm).
2)
Height: 11-5/8 inches (295 mm).
3)
Length: 23-5/8 inches (600 mm).
Thin Veneer Size: 3-5/8 inch (92 mm) returns.
a.
Actual Dimensions.
1)
Depth: 1-1/4 inches (32 mm).
2)
Depth: 3-5/8 inches (92 mm).
3)
Length: 23-5/8 inches (600 mm).
Thin Veneer Size: 3-5/8 inch (92 mm) returns.
a.
Actual Dimensions:
1)
Depth: 1-1/4 inches (32 mm).
2)
Height: 7-5/8 inches (194 mm).
3)
Length: 23-5/8 inches (600 mm).
Thin Veneer Size: 3-5/8 inch (92 mm) returns.
a.
Actual Dimensions:
1)
Depth: 1-1/4 inches (32 mm).
2)
Height: 11-5/8 inches (295 mm).
3)
Length: 23-5/8 inches (600 mm).
Color: Custom, _______________.
04 72 00-11
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
Color: As indicated on Drawings
Color: Dakota.
Color: Buff.
Color: Buckskin.
Color: Graystone.
Color: Gunpowder.
Color: Graham.
Color: Snowcap.
Color: Sand Dune.
Color: Wheat.
Color: Terra Cotta.
Color: Leather.
Color: Coal.
PART 3 EXECUTION
3.1
EXAMINATION AND PREPARATION
3.2
Examine cast stone units before installation; do not install unacceptable units.
3.3
Products are shipped on a pallet and have one unfinished side. Textured units are to be set with
the texture face forward and smooth units are stacked "face up" on the pallet.
3.4
Identify returns, finished ends and note corresponding locations on shop drawings.
3.5
A.
Do not proceed with installation until substrates have been prepared using the methods
recommended by the manufacturer and deviations from manufacturer's recommended
tolerances are corrected. Commencement of installation constitutes acceptance of
conditions.
B.
If preparation is the responsibility of another installer, notify Architect in writing of deviations
from manufacturer's recommended installation tolerances and conditions.
INSTALLATION
A.
Install products in accordance with manufacturer's instructions and approved submittals.
1.
Per ACI 530.1, it is not necessary, nor recommended, to wet units prior to installation.
2.
Set units in full bed of mortar, unless otherwise indicated on the drawings. It is not
necessary to rake joints for later tuckpointing; standard full mortar application with
tooling.
3.
Vertical Joints: Fill vertical joints with mortar.
4.
Head Joints: Leave head joints in copings and similar components open for sealant.
5.
Joints:
a.
Width: 3/8 inch wide; unless otherwise indicated on the Drawings or elsewhere
in the specifications.
b.
Mortar joints should have a slight concave profile; unless otherwise indicated
on the Drawings or elsewhere in the specifications.
c.
Remove excess mortar immediately, remove mortar fins and smears before
tooling joints.
6.
Cover wainscot for protection and bond separation with plastic, felt paper or other
approved products.
7.
Cover freshly installed masonry products as required to assist with the curing process.
8.
Inspect completed installation in accordance with recommendations of Cast Stone
Institute Technical Manual.
B.
Control Joints: In accordance with recommendations of the following:
1.
NCMA TEK Bulletin 5-2A: Clay and Concrete Masonry Banding Details.
04 72 00-12
2.
3.
4.
3.6
C.
Veneer Anchoring: In accordance with recommendations of CMA TEK Bulletin 3-6B;
Concrete Masonry Veneers.
D.
Sealant Joints:
1.
As specified in Section 07 91 26 - Joint Fillers.
2.
Prime ends of units, insert properly sized backing rod, and install sealant.
3.
Provide sealant joints at following locations:
a.
Copings and cast stone units with exposed tops.
b.
Joints at relieving angles.
c.
Control and expansion joints.
d.
As indicated on the drawings.
E.
Sealer: Apply water repellant for weatherproofing in accordance with water repellant
manufacturer's instructions, after installation, cleaning, repair, inspection, and acceptance of
units are completed
TOLERANCES
A.
3.7
3.8
NCMA TEK Bulletin 10-1A: Design of Concrete Masonry for Crack Control.
NCMA TEK Bulletin 10-2C: Control Joints for Concrete Masonry Walls - Empirical
Method.
NCMA TEK Bulletin 10-4: Crack Control for Concrete Brick and Other Concrete
Masonry Veneers.
Installation Tolerances:
1.
Variation from Plumb: Do not exceed 1/8 inch in 5 feet or 1/4 inch in 20 feet or more.
2.
Variation from Level: Do not exceed 1/8 inch in 5 feet, 1/4 inch in 20 feet, or 3/8 inch
maximum.
3.
Variation in Joint Width: Do not vary joint thickness more than 1/8 inch or 1/4 of
nominal joint width, whichever is greater.
4.
Variation in Plane Between Adjacent Surfaces: Do not exceed 1/8 inch difference
between planes of adjacent units or adjacent surfaces indicated to be flush with units.
CLEANING
A.
Clean exposed units after mortar is thoroughly set and cured.
B.
Perform test of cleaner on small area of 4 ft x 4 ft (1 m x 1 m) on each type and color and
receive approval by Architect before full cleaning. Let test area dry 4 to 5 days before
inspection. Keep test area for future comparison.
C.
Areas with heavy soiling use a wood block or non-metallic scraper.
D.
Apply cleaner to units in accordance with cleaner manufacturer's instructions.
E.
Do not use the following to clean units:
1.
Muriatic acid.
2.
Power washing.
3.
Sandblasting.
4.
Harsh cleaning materials or methods that would damage or discolor surfaces.
PROTECTION
A.
Touch-up, repair or replace damaged products before Substantial Completion.
1.
Repair chips and other surface damage; repair with touchup materials provided by
manufacturer in accordance with manufacturer's instructions.
2.
Repair methods and results to be approved by Architect.
04 72 00-13
B.
Protection: Protect installed products and finishes from splashing, stains, mortar, and other
damage during construction.
END OF SECTION
04 72 00-14