HomeMy WebLinkAbout32-18-20-Precast-Site-Furnishings_Rev_1Dennis Yarmouth Intermediate Middle School January 19, 2021
Dennis Yarmouth Regional School District 100% Construction Documents
Perkins Eastman DPC, project #71011
32 18 20 PRECAST SITE FURNISHINGS
1 of 7
Section 32 18 20
PRECAST CONCRETE SITE FURNISHINGS
PART 1 - GENERAL
1.1 SUMMARY
A. Drawings and General Provisions of Contract, including General and Supplementary
Conditions and Division 01 Specification section, apply to work of this section.
B. Related Sections: The following sections contain requirements that relate to this
section.
1. Section 03 30 00 – Cast In Place Concrete
2. Section 06 20 13 – Exterior Wood Components
3. Section 32 13 13 – Portland Cement Concrete Pavement
4. Section 01 60 00 - Product Requirements: Listing of Emissions and VOC
requirements.
5. Section 01 74 19 - Construction Waste Management and Disposal:
Procedural and administrative requirements for construction and
demolition recycling
6. Section 01 81 13 - Sustainable Design Requirements: Special
administrative and procedure requirements related to Owner’s LEED v4
for Schools Building Design + Construction (BD+C) goals of
Certification.
7. Section 01 81 13a - LEED v4 Materials Reporting Form: Materials
Tracking for Building Product Disclosure and Optimization credits
1.2 DESCRIPTION OF WORK
A. Provide all materials, equipment and labor necessary to complete the work as
indicated on the drawings and as specified herein.
B. The principal work of this section includes, but may not be limited to, the following:
1. Precast Concrete Site Furnishings
1.3 SUBMITTALS
A. Submit shop drawings and product data under provisions of Division 01 for all
manufactured/fabricated items. All submittals must be prior to fabrication and/or field
installation work.
1. Shop drawings shall include plans, details, elevations and specifications and
shall indicate profiles, sizes, dimensions, connection attachments,
reinforcement, connection details and methods, relationship to adjacent
material,size and type of fasteners, accessories, and color and finish as
indicated in these specifications and the plans.
2. Submit manufacturers printed product literature, specifications and data
sheets.
Dennis Yarmouth Intermediate Middle School January 19, 2021
Dennis Yarmouth Regional School District 100% Construction Documents
Perkins Eastman DPC, project #71011
32 18 20 PRECAST SITE FURNISHINGS
2 of 7
3. Clearly indicate on the shop drawings any deviations from the plans and
specifications.
B. Submit Contractor Qualifications as required under Quality Assurance section stated
herein.
C. Samples: Nominal size 6” sq. by appropriate thickness, of each type of unit and
finished facing shown and specified for approval of quality, color, and texture of
surface finish. Submit prior to fabrication.
D. Mix Design(s): Propose concrete mix design for each type and color of concrete
mix utilizing 21% recycled material.
E. Test Reports: Compressive Strength. Supply 12 test results from the last year
showing the required results of 5000 PSI.
F. LEED Submittals:
1. Provide manufacturers’ product documentation that includes recycled
content claims for the products contributing towards compliance. Claims
must conform to the definition in ISO 14021-1999, Environmental Labels
and Declarations, Self-Declared Environmental Claims.
2. Complete "LEED Materials Documentation Sheet" with MRc3 Option 2
information for products with recycled content installed in the building.
1.4 QUALITY ASSURANCE
A. Fabricator’s Qualifications: Firm shall have a minimum of twenty (20) years
experience in producing units similar to those required for this Project, with sufficient
production capacity to produce and deliver required units without causing delay in
Work.
1.5 GUARANTEE
A. Fabricator to provide a one-year guarantee against manufacturer’s defect
1.6 DELIVERY, STORAGE, AND HANDLING
A. Store all materials specified herein as to not impact, damage or otherwise
corrupt other work. Contractor shall be responsible for corrective measures as a
result of incorrect storage.
B. Protect materials from weather upon delivery to job site.
C. Store materials on raised supports. Cover materials with waterproof covering.
Provide adequate air circulation and ventilation.
E. Do not store materials in wet or damp areas.
F. Store and dispose of solvent-based materials, and materials used with solvent-
Dennis Yarmouth Intermediate Middle School January 19, 2021
Dennis Yarmouth Regional School District 100% Construction Documents
Perkins Eastman DPC, project #71011
32 18 20 PRECAST SITE FURNISHINGS
3 of 7
based materials, in accordance with requirements of local authorities having
jurisdiction.
1.7 SEQUENCING AND SCHEDULING
A. Coordinate the work of this Section with the respective trades responsible for
installing interfacing work, and ensure that the work performed hereunder is
acceptable to such trades for the installation of their work.
PART 2 - PRODUCTS
2.1 Any manufacturer’s names and/or model numbers identified herein are intended to assist
in establishing a general level of quality, configuration, functionality, and appearance
required. This is NOT a proprietary specification and it should be noted that “or
equivalent” applies to all products denoted herein. It is understood that all manufacturers
will have minor variations in configuration, appearance, and product specifications and
such minor variations shall not eliminate such manufacturers as an equivalent. It is the
intent of this specification to encourage open and competitive involvement from multiple
manufacturers that are able to supply similar products.
2.2 MATERIALS
A. Acceptable manufacturers include the following:
1. Approved Fabricators:
Quick Crete Products Corp. P.O. Box 639 Norco, CA 92860.
Tel. (951)737-6240
Web. www.quickcrete.com
2. Or Approved Equivalent
B. Concrete Materials
1. Portland Cement: ASTM C 150, Type III (gray), to achieve desired finish
colors. Use only one brand, type, and color from the same mill.
2. Aggregates: ASTM C 33, gradation may differ to achieve desired finish
characteristics. Select coarse and fine aggregate colors and screen sizes to
match approved sample(s). Verify that adequate supply, from one pit or
quarry, for each type of aggregate is available for the entire Project. If
possible obtain entire aggregate supply prior to starting Work, or have
aggregate supply held in reserve by aggregate supplier.
3. Water: Potable. Clean, clear, and free from deleterious amounts of salts,
acids, alkali’s, organic materials, oils, detergents, or other matter that may
interfere with color, curing, or strength of concrete.
4. Admixtures: Select to be compatible in specified mix.
a) Air Entraining: ASTM C 260.
b) Water Reducing: ASTM C 494, Type A,B,C,F. or G.
Dennis Yarmouth Intermediate Middle School January 19, 2021
Dennis Yarmouth Regional School District 100% Construction Documents
Perkins Eastman DPC, project #71011
32 18 20 PRECAST SITE FURNISHINGS
4 of 7
c) Coloring Agent: ASTM C 979, compatible with other concrete
materials.
C. Formwork
1. Provide forms with acceptable form facing materials that are non-reactive
with concrete or form release agents and will produce required finish
surfaces.
2. Construct and maintain forms to produce precast concrete units of shapes,
lines, and dimensions indicated, within specified tolerances.
D. Reinforcing Materials
1. Reinforcing Bars: ASTM A 615, Grade 40
E. Connection Materials
1. Bolts, washers, nuts to be zinc plated.
2.3 MIXES
A. Design mixes for each type of concrete specified may be prepared by an
independent testing agency or by architectural precast manufacturing plant personnel
at precast fabricator’s option.
B. Proportion mixes by either testing agency trial batch or field test data methods in
accordance with ACI 211.1, using materials to be used on the project, to provide
normal weight concrete with properties as follows:
1. Compressive Strength: 5,000 psi when tested in accordance with ASTM C
39.
2. Maximum water cement ratio 0.47 at point of placement.
3. Add air-entrainment admixture to result in air content at point of placement
complying with ACI 533 requirements.
2.4 FABRICATION
A. General:
1. Fabricate precast concrete units with manufacturing and testing procedures,
quality control recommendations, and dimensional tolerances as specified in
ACI 533, unless more stringent requirements are shown or specified.
2. Fabricate units straight, smooth and true to size and shape, with exposed
edges and corners precise and square, unless otherwise indicated.
3. Benches must be made without any visible lift points.
B. Reinforcement: Comply with CRSI “Manual of Standard Practice” and ACI 318
recommendations. Reinforce architectural precast concrete units to resist handling,
transportation stresses, and to comply with specified performance criteria.
Dennis Yarmouth Intermediate Middle School January 19, 2021
Dennis Yarmouth Regional School District 100% Construction Documents
Perkins Eastman DPC, project #71011
32 18 20 PRECAST SITE FURNISHINGS
5 of 7
C. Comply with ACI-533 requirements for measuring, mixing, transporting, and placing
concrete.
D. Consolidate concrete using equipment and procedures complying with ACI 533.
E. Discard units that are warped, cracked, broken, spalled, stained, or otherwise
defective unless repairs are approved by the Owner and meet specified
requirements.
F. Fabrication Tolerances: Fabricate to tolerances listed in ACI-533.
2.5 FINISHES
A. Finish texture shall be Craftman’s Etch. Color shall be Mission White. Sealer shall
be Standard Gloss Sealer.
1. Surface finish free from pockets, sand streaks, honeycomb, with uniform
color and texture. Bug holes larger than 1/4 inch in diameter are not
acceptable and must be filled.
B. Seam lines to be stoned neatly to minimize appearance. Products with wide or
uneven seam lines could be subject to rejection.
2.6 SEALERS
A. All surfaces to be sealed with three coats of a water based gloss acrylic sealer, which
has graffiti-resistant qualities. Must be non-sacrificial so most graffiti can be cleaned
with lacquer thinner and not require resealing. Sealer shall be per fabricator’s
specifications.
2.7 SOURCE QUALITY CONTROL
A. Inspect and test architectural precast concrete in accordance with ACI 533.
B. Defective Work: Discard units that do not conform to requirements as shown or
specified. Replace with units which meet requirements.
2.8 LEED Requirements
A. Wood products that are not reused, salvaged, or recycled must be certified to
the standards of the Forest Stewardship Council.
B. Provide products manufactured and extracted within 100 miles of the project site
whenever possible.
C. Provide products with the maximum recycled content possible. Minimum
recycled content 20%
Dennis Yarmouth Intermediate Middle School January 19, 2021
Dennis Yarmouth Regional School District 100% Construction Documents
Perkins Eastman DPC, project #71011
32 18 20 PRECAST SITE FURNISHINGS
6 of 7
PART 3 - EXECUTION
3. 1 GENERAL
A. Any precast site furnishings damaged during delivery, storage or installation
shall not be accepted.
B. Verify all dimensions in the field and check work by other trades for
conformance with the drawings before proceeding with the work. Report any
discrepancies to the Owner before proceeding.
3.2 PLACEMENT
A. Pattern and placement shall be as shown on construction drawings.
3.4 CLEANING
A. Remove debris from project site associated with precast product. Clean precast
product of dirt, dust and debris and per fabricator’s specifications.
3.5 PROTECTION
A. During the installation of the precast, protect the work of the other trades against
undue soilage and damage by the exercise of reasonable care and precautions.
Repair or replace any work so damaged and soiled.
END OF SECTION 32 18 20
Dennis Yarmouth Intermediate Middle School January 19, 2021
Dennis Yarmouth Regional School District 100% Construction Documents
Perkins Eastman DPC, project #71011
32 18 20 PRECAST SITE FURNISHINGS
7 of 7
(THIS PAGE IS BLANK)