SECTION 12 93 34

advertisement
SECTION 02871
SITE FURNISHINGS – PRECAST CONCRETE
PART 1 - GENERAL
1.1
SUMMARY
A.
1.2
Section Includes: Manufactured architectural precast concrete planter pots.
SUBMITTALS
A.
General: Submit in accordance with Section 01330 Submittal Procedures.
B.
Product Data: Submit Form and Fiber Inc. technical product data for Boardform precast concrete
planter pots.
C.
Submit following Informational Submittals:
1.
Qualification Data: Manufacturer’s qualification data.
1.3
QUALITY ASSURANCE
A.
1.4
Single Source Responsibility:
Provide architectural precast concrete planters from one
manufacturer with consistent color and finish.
DELIVERY, STORAGE, AND HANDLING
A.
Comply with manufacturer’s requirements.
B.
Transport, store, and handle concrete units in an upright position.
C.
Protect base, edges, inside and outside rim to prevent staining, cracking, chipping, spalling,
bowing and warping.
D.
Use equipment and methods for transportation, site handling and installation as recommended by
manufacturer.
E.
Storage:
1.
Store units off ground, preferably on a wood pallet, and in manner to prevent cracking,
staining or other physical damage.
2.
Place stored units in a singular upright position and according to manufacturer
specifications.
3.
Store so that singular units are accessible and undamaged.
F.
Protect drainage holes from water and ice during freezing weather.
PART 2 - PRODUCTS
2.1
MANUFACTURER
A.
Products specified in this Section are manufactured by Form and Fiber Inc., 3824 Cedar
Springs Rd., #195, Dallas, Texas 75219, Tele. (888) 314-8852, www.formandfiber.com
Form and Fiber Inc.
Site Amenities - Precast Concrete
02871
2.2
MATERIALS
A.
Concrete: Manufacturer’s proprietary blend of sand, aggregate, portland cement, fiberglass
fiber, sand, water, and admixtures, including natural color pigment.
1.
Use only one brand, type and source of cement for entire Project.
2.
Standard Manufacturer Colors: Natural Gray ______ or natural color pigment as selected
from Davis Colors, a trademark of Rockwood Pigments.
B.
Wood:
1.
Selection of species based on expression of wood grain, moisture resistance, and
consistency of form and alignment.
2.
Board selection should be straight and true to form.
C.
Water: Clean, and drinkable.
D.
2.3
Sealants:
1.
Inside Sealant, water-based polyurethane, high-solid coating. UV stable, non-yellowing.
2.
Outside Sealant, water-based penetrating sealant. Clear, matte, UV stable, non-yellowing.
FABRICATION - GENERAL
A.
Formwork:
1.
Fabricate wood forms for close control of dimensions and details per designer specification,
utilizing: 4 inch ____ 6 inch ____ or 8 inch ____ nominal board widths.
2.
Alignment of wood forms: Horizontal Aligned ______ or Offset Layout ______.
3.
Provide level 1/8" to 1/4" finger joints between boards ____ or tightly butted joints ____.
4.
Fabricate forms sufficiently rigid to meet casting tolerances.
5.
Coat formwork with form release agent.
B.
Casting:
1.
Provide precast concrete mix for full unit depth.
2.
Cast units to minimum 2.5 inch thickness.
3.
Provide optional drainage hole according to designer specifications.
4.
Cast internal steel loops for lifting and locating of units.
5.
Ensure fluidity of mix to capture wood grain detail.
6.
Fabricate units to required profiles and sizes. Execute work accurately to specified
tolerances and free of broken edges. Fabricate edges straight and with clean accurate
arises.
7.
Ensure exposed edges and ends match finish and texture of face of unit.
C.
Curing:
1.
Protect units from exposure to weather until concrete strength is adequate for form
removal.
2.
Cure units under identical conditions.
3.
Cured units compressive strength: minimum 4,000 psi.
2.4
A.
PLANTER POTS
Boardform Series Planters: Applications Heavy Public Traffic-to-Residential
Form and Fiber Inc.
Site Amenities - Precast Concrete
02871
1.
2.
Square or rectangular boardform concrete planter pots.
Product Dimensions for height, depth, and width (up to 96" length) as specified by
designer.
a.
Color: ___________________________
b.
Quantity Required ______
PART 3 - EXECUTION
3.1
EXAMINATION
A.
3.2
Examine deliveries upon arrival at site to verify each unit is without damage.
INSTALLATION
A.
3.3
General:
1.
Comply with manufacturer's written installation instructions.
2.
Install units without damage to shape or finish. Damage includes chips or cracks in
exposed-to-view areas.
3.
Do not install damaged units, except as approved by Architect.
4.
Repair [Replace] damaged units.
5.
Set units level, plumb, square and true within allowable tolerances.
6.
Install units in final locations and in arrangements, as indicted on Drawings.
ADJUSTING
A.
Adjust each concrete planter pot so that units are in proper location and orientation.
B.
Drainage holes cannot be added to units in the field and must be fabricated during casting
process.
3.4
CLEANING
A.
Clean dirt or blemishes from surface of exposed units.
Form and Fiber Inc.
Site Amenities - Precast Concrete
02871
B.
Wash and rinse in accordance with manufacturer’s recommendations.
C.
Protect adjacent surfaces from damage due to cleaning operations.
D.
Do not use cleaning materials or processes which could alter character of exposed finishes.
END OF SECTION
Form and Fiber Inc.
Site Amenities - Precast Concrete
02871
Download