HomeMy WebLinkAbout047200 CAST STONE MASONRY.pdf Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST STONE MASONRY 047200 - 1
SECTION 047200 - CAST STONE MASONRY
1.1 SUMMARY
A. Section Includes:
1. Cast stone trim.
1.2 ACTION SUBMITTALS
A. Product Data: For each type of product indicated. Include dimensions and finishes.
B. LEED Submittals:
1. Product Certificates for Credit MR 5: For products and materials required to comply with
requirements for regional materials indicating location and distance from Project of
material manufacturer and point of extraction, harvest, or recovery for each raw material.
Include statement indicating cost for each regional material and the fraction by weight
that is considered regional.
C. Shop Drawings: Show fabrication and installation details for cast stone units. Include
dimensions, details of reinforcement and anchorages if any, and indication of finished faces.
D. Samples:
1. For each color and texture of cast stone required.
2. For colored mortar.
1.3 INFORMATIONAL SUBMITTALS
A. Qualification Data: For manufacturer.
B. Material Test Reports: For each mix required to produce cast stone, based on testing according
to ASTM C 1364, including test for resistance to freezing and thawing.
1.4 QUALITY ASSURANCE
A. Manufacturer Qualifications: A qualified manufacturer of cast stone units similar to those
indicated for this Project, that has sufficient production capacity to manufacture required units,
and is a plant certified by the Cast Stone Institute.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST STONE MASONRY 047200 - 2
PART 2 - PRODUCTS
2.1 CAST STONE UNITS
A. Manufacturers: Subject to compliance with requirements, available manufacturers offering
products that may be incorporated into the Work include, but are not limited to, the following:
1. Capital Cast Stone – Lebanon, IN
2. Custom Cast Stone Inc. – Westfield, IN
3. Architectural Cast Stone, Inc. – Chicago, IL
B. Regional Materials: Cast stone units shall be manufactured within 500 miles of Project site from
aggregates and cement that have been extracted, harvested, or recovered, as well as
manufactured, within 500 miles of Project site.
C. Provide cast stone units complying with ASTM C 1364 using either the vibrant dry tamp or
wet-cast method.
1. Provide units that are resistant to freezing and thawing as determined by laboratory
testing according to ASTM C 666/C 666M, Procedure A, as modified by ASTM C 1364.
2. Slope exposed horizontal surfaces 1:12 to drain unless otherwise indicated.
3. Provide raised fillets at backs of sills and at ends indicated to be built into jambs.
4. Provide drips on projecting elements unless otherwise indicated.
D. Cure units as follows:
1. Cure units in enclosed moist curing room at 95 to 100 percent relative humidity and
temperature of 100 deg F for 12 hours or 70 deg F for 16 hours.
2. Keep units damp and continue curing to comply with one of the following:
a. No fewer than five days at mean daily temperature of 70 deg F or above.
b. No fewer than six days at mean daily temperature of 60 deg F or above.
c. No fewer than seven days at mean daily temperature of 50 deg F or above.
d. No fewer than eight days at mean daily temperature of 45 deg F or above.
E. Acid etch units after curing to remove cement film from surfaces to be exposed to view.
F. Colors and Textures: As selected by Architect from manufacturer's full range.
2.2 ACCESSORIES
A. Anchors: Type and size indicated, fabricated from Type 304 stainless steel complying with
ASTM A 240/A 240M, ASTM A 276, or ASTM A 666.
B. Dowels: 1/2-inch- diameter, round bars, fabricated from Type 304 stainless steel complying
with ASTM A 240/A 240M, ASTM A 276, or ASTM A 666.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST STONE MASONRY 047200 - 3
C. Proprietary Acidic Cleaner: Manufacturer's standard-strength cleaner complying with
requirements in Section 042000 "Unit Masonry," and expressly approved for intended use by
cast stone manufacturer and cleaner manufacturer.
2.3 MORTAR
A. Comply with requirements in Section 042000 "Unit Masonry" for mortar materials and mixes.
1. For setting mortar, use Type S.
2. For pointing mortar, use Type N.
3. Pigmented Mortar: Use colored cement product.
B. Regional Materials: Aggregate for mortar shall be manufactured within 500 miles of Project site
from materials that have been extracted, harvested, or recovered, as well as manufactured,
within 500 miles of Project site.
2.4 SOURCE QUALITY CONTROL
A. Engage a qualified independent testing agency to sample and test cast stone units according to
ASTM C 1364.
1. Include one test for resistance to freezing and thawing.
PART 3 - EXECUTION
3.1 SETTING CAST STONE IN MORTAR
A. Install cast stone units to comply with requirements in Section 042000 "Unit Masonry."
B. Set units in full bed of mortar with full head joints unless otherwise indicated.
1. Fill dowel holes and anchor slots with mortar.
2. Fill collar joints solid as units are set.
3. Build concealed flashing into mortar joints as units are set.
4. Keep head joints in coping and other units with exposed horizontal surfaces open to
receive sealant.
5. Keep joints at shelf angles open to receive sealant.
C. Rake out joints for pointing with mortar to depths of not less than 3/4 inch. Rake joints to
uniform depths with square bottoms and clean sides. Scrub faces of units to remove excess
mortar as joints are raked.
D. Point mortar joints by placing and compacting mortar in layers not greater than 3/8 inch.
Compact each layer thoroughly and allow it to become thumbprint hard before applying next
layer.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST STONE MASONRY 047200 - 4
E. Tool exposed joints slightly concave when thumbprint hard, using a jointer larger than joint
thickness unless otherwise indicated.
F. Provide sealant joints at copings and other horizontal surfaces, at expansion, control, and
pressure-relieving joints, and at locations indicated.
1. Keep joints free of mortar and other rigid materials.
2. Prepare and apply sealant of type and at locations indicated to comply with applicable
requirements in Section 079200 "Joint Sealants."
3.2 SETTING ANCHORED CAST STONE WITH SEALANT-FILLED JOINTS
A. Set units accurately in locations indicated with edges and faces aligned.
1. Install anchors, supports, fasteners, and other attachments to secure units in place.
2. Shim and adjust anchors, supports, and accessories.
B. Fill anchor holes with sealant.
1. Where dowel holes occur at pressure-relieving joints, provide compressible material at
ends of dowels.
C. Set cast stone supported on clip or continuous angles on resilient setting shims. Hold shims back
from face of cast stone a distance at least equal to width of joint.
D. Keep joints free of mortar and other rigid materials. Remove temporary shims and spacers from
joints after anchors and supports are secured in place and cast stone units are anchored.
E. Prepare and apply sealant of type and at locations indicated to comply with applicable
requirements in Section 079200 "Joint Sealants."
3.3 INSTALLATION TOLERANCES
A. Variation from Plumb: Do not exceed 1/8 inch in 10 feet, 1/4 inch in 20 feet, or 1/2 inch
maximum.
B. Variation from Level: Do not exceed 1/8 inch in 10 feet, 1/4 inch in 20 feet, or 1/2 inch
maximum.
C. Variation in Joint Width: Do not vary joint thickness more than 1/8 inch in 36 inches or one-
fourth of nominal joint width, whichever is less.
D. Variation in Plane between Adjacent Surfaces (Lipping): Do not vary from flush alignment with
adjacent units or adjacent surfaces indicated to be flush with units by more than 1/16 inch,
except where variation is due to warpage of units within tolerances specified.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST STONE MASONRY 047200 - 5
3.4 ADJUSTING AND CLEANING
A. Remove and replace stained and otherwise damaged units and units not matching approved
Samples. Cast stone may be repaired if methods and results are approved by Architect.
B. Replace units in a manner that results in cast stone matching approved Samples, complying with
other requirements, and showing no evidence of replacement.
C. In-Progress Cleaning: Clean cast stone as work progresses.
1. Remove mortar fins and smears before tooling joints.
2. Remove excess sealant immediately, including spills, smears, and spatter.
D. Final Cleaning: After mortar is thoroughly set and cured, clean exposed cast stone to comply
with requirements in Section 042000 "Unit Masonry."
END OF SECTION 047200