INTERIOR PRODUCT SPECIFICATIONS

SECTION 09290 - GLASS FIBER REINFORCED GYPSUM

+ PART 1 GENERAL

1.01 DESCRIPTION OF WORK

Interior glass fiber reinforced gypsum components. (GRG) "Two Bit Clips" ^TM by Plastrglas, Inc.

1.02 RELATED SECTIONS

Section 09250 Gypsum Board

Section 09900 Painting

Section 07900 Joint Sealers

1.03 RELATED DOCUMENTS

Glass Reinforced Gypsum Guide by CISCA Levels of Gypsum Board Finish

1.04 SUBMITTALS

Product Data: Submit manufacturers detailed technical data for material and fabrication, including catalog cuts of anchors, hardware, fastenings, and related accessories.

Shop Drawings: Submit shop drawings for fabrication and erection of GRG components, and installation for anchorage devices. Indicate material, construction, dimensions, locations, tolerances, installation, and connection details.

1.05 QUALITY ASSURANCE

Quality Control: Each component must be clearly stamped by the manufacturers quality control inspector.

1.06 DELIVERY, STORAGE AND HANDLING

Deliver material in undamaged condition and store in interior dry area free from moisture. Keep material in manufacturer's original crate until ready to install. In the event of freight damage, note freight bill and contact manufacturer immediately.

+ PART 2 PRODUCTS

2.01 MANUFACTURER

Subject to compliance as stated herein; the following manufacturer conforming to these specs is as follows:

PLASTRGLAS, INC.

4200 N. 30TH STREET

OMAHA, NE 68111

Phone: (402) 455-0652 Fax: (402) 451-5375

As Represented by:

Substitutions: Must be preapproved before bid time and must on form to the specification. Substitution must also show  individual test results showing compliance with physical properties. All test data must be stamped by an independent testing lab.

2.02 MATERIALS

General: Provide materials selected for surface smoothness with out pitting, seam marks, stains, and other imperfections on finished units.

Anchorage and Fasteners: Manufacturers "Two-Bit Clips" for fastening and alignment of part to part connections.

Adhesives: Solvent base type, suitable for gypsum wallboard applications. Similar or equal to Liquid Nails, PL400, PL Premium or equal.

Embedment: Cold rolled galvanized channel or Styrofoam Bead Board is acceptable for reinforcing. NO wood or metal to be used at attachment points because of delamination.

2.03 FABRICATION

General: Furnish GRG Components and "Two-Bit Clips" device as indicated on contract documents, unless otherwise indicated. Furnish units with custom shapes, brackets, and attachment hardware as required.

GRG Components: Prefabricated glass-fiber reinforced gypsum units using multidirectional spray lay-up procedures and combined with gypsum plaster formulated for combination with glass fiber. NO HAND LAY-UP METHOD WILL BE ACCEPTED.

Shell thickness: 3/16" nominal

Minimum weight: 2 lbs/ft²

Non-combustible material with primer ready surface

Pinholes and mold voids filled and over-spray trimmed

2.04 PHYSICAL PROPERTIES OF GRG SHAPES

Matrix: Gypsum Cement

Glass Fiber: 5-6% by weight, Type E 38 % by volume

Thickness: 3/16" Nominal

Flexural Strength (ASTM C580): 10,660 PSI

Modulus of Elasticity: 1.43 x 106 psi

Ultimate Tensile Strength (ASTM D638): 2,250 psi

Modulus of Elasticity: 3.87 x 106 psi

Flammability (ASTM E84-81A):

Flame Spread Index -0

Smoke Developed Value -0

Fuel Contributed -0

Impact Strength (ASTM D256): 12.9 ft lb/in

Thermal Conductivity (ASTM C518):"C" of 1.56 BTU/hr ft² °F

Barcol Hardness (ASTM D2583): 64

Rockwell Hardness (ASTM D785): 98.8 'M' Scale

Density: 106.4 lbs/ft³

Thermal Coefficient of Expansion (ASTM D696): 5.4 x 106 in/in/°F

Compressive Strength (ASTM C39/C109): 7,080 psi

Water Resistance (ASTM C473): 12.5% Weight Gain

Humidified Deflection (ASTM C473): 1/8"

Toxicity NBS/U.S. Testing: Non-Toxic

Mold Construction: Molds to be made of fiberglass to insure dimensional accuracy, resulting in a smooth finished product conforming to profiles indicated. NO wood or metal molds will be accepted for part production.

Matrix: Combine glass fiber and matrix slurry at a constant rate to achieve desired mix proportions and glass content. Spray in accordance with manufacturers instructions.

Embedments: Embed required inserts in matrix to develop full strengths. Embed only after required 3/16" nominal thickness has been achieved. No embedments will be accepted at connection joints.

2.05 FINISH

Surface: GRG Components shall be free of scratches and blemishes.

+ PART 3 EXECUTION

3.01 GENERAL

Inspection: Inspection adjacent construction for conditions that would prevent proper installation of reinforced gypsum units.

Expansion Joints: Expansion joints such as USG 893 shall be installed in runs exceeding 35 feet.

Installation: Install reinforced gypsum units true, plumb and level in accordance with manufacturers installation instructions.

Joint Finishing: Joints between reinforced gypsum units shall be taped and finished in accordance with gypsum board finish manual. Joint shall follow curvature of unit if applicable. Patch and repair surface imperfections due to damage as jobsite. Exercise care in taping and finishing to prevent “crowning”. Sand joint smooth after joint finished.  Blow unit clean and primer before painting.

END OF INTERIOR SECTION

EXTERIOR PRODUCT SPECIFICATIONS

SECTION 09290 - GLASS REINFORCED CONCRETE (GRC) UNITS

+ PART 1 GENERAL

1.01 RELATED DOCUMENTS

Drawing and General provisions of Contract, including General Supplementary Conditions and Division 1 specification sections, apply to work of this section.

1.02 SUMMARY

A. This section covers all labor, material, accessories, scaffolding and appliances necessary for the complete installation of glass reinforced concrete units. Items not mentioned specifically here, which are necessary to make a complete installation shall also be included.

1.03 RELATED WORK SPECIFIED ELSEWHERE

A. SECTION                             

B. Paint: Finish Coating will be an emulsified acrylic, latex, or a water-based epoxy and shall be suitable for exterior concrete. SECTION                             

1.04 SUBMITTALS

A. Shop Drawings: Submit in accordance with Section                              Indicate materials, construction, dimensions, locations, tolerances, connections and installation details.

B. Product data: Submit in accordance with Section                              Indicate materials, construction, dimensions, locations, tolerances, physical properties, connections and installation details.

1.05 QUALITY ASSURANCE

A. Manufacturer's qualifications: Minimum of five years experience in the actual production of Glass Reinforced Concrete.

B. Installer's qualifications: Minimum of five years experience in installation of systems of similar complexity to those specified for this project.

1.06 SUBSTITUTIONS

Manufacturers desiring to furnish material other than specified shall submit to the architect, at least 10 working days prior to bid date, all product data as listed above (including copies of all tests and certifications), a 12 x 12 product sample, proof of least five years of GRC product manufacturing experience, and a list of five completed projects with similar product application and size.

+ PART 2 PRODUCTS

2.01 MANUFACTURER

WEATHR ROK DIVISION of PLASTRGLAS, INC.

4200 N. 30th Street

Omaha, NE 68111

Phone: (402) 455-0652  Fax: (402) 451-5375

2.02 MATERIALS: REINFORCED CONCRETE UNITS

A. Shall be Weathr Rok pre-fabricated glass reinforced concrete units using multi- directional unlayered spray lay-up procedure. The GRC shall be made from Type III Portland Cement, washed and dried silica sand, potable water, alkali resistant glass fibers complying with PCI-MNL 128, and curing additives.

B. TOLERANCES (FABRICATION)

Shell Thickness: ¼" - 0"/+ ¼"

Dimensional: ± 1/8" per part

 Warpage and Bow: ± 1/8" per part

C. PHYSICAL PROPERTIES

Unit Weight (Weight Per Volume): 123.9 lb/ft³

Compressive Strength (ASTM C39/C109): 9510 psi

Flexural Strength (ASTM C580): 3790 psi

Flexural Strength (MOR) (ASTM C947): +1900 psi

Flexural Strength (PEL) (ASTM C947): +800 psi

Tensile Strength (ASTM D638): 1350 psi

Impact Resistance (IZOD): 9.86 ft-lbs/in²

Rockwell Hardness (ASTM 785): 57.6

Fuel Contributed (ASTM E84): Zero

Flame Spread (ASTM E84): Zero

Smoke Developed (ASTM E84): Zero

2.03 FABRICATION:

A. Moulds for the reinforced concrete units shall be rigid and constructed of materials that will result in smooth, finished products conforming to profiles and dimensions indicated on the shop drawings.

B. Portland cement, sand, water, chemical admixtures (water reducers, latex bonding agents, accelerators) shall be metered by electronic measuring instruments to insure the highest consistency of the batch mix ingredients. The actual batch mixing process in the creation of the concrete slurry shall be timed to manufacturer's prescribed formulations.

C. Meter glass fiber and concrete slurry rates at spray head to achieve desired mix proportion and glass content. Check in accordance with the standard procedures recommended by PCI-MNL-128.

D. Machine spray in accordance with the manufacturer's standards for multi-directional, chopped fibers.

E. Carefully remove units from moulds and factory repair hollows, voids, scratches, or other surface imperfections. Surface shall be primer ready.

F. Each reinforced concrete unit shall bear a stamp indicating it has been inspected and approved by the manufacturer's Quality Assurance inspector.

2.04 JOINT TREATMENT MATERIALS

A. Monolithic Joints: The monolithic joint shall be finished with Weathr Rok Joint Compound. The joint compound shall be a latex modied cement, tested in accordance with ASTM C900. The bond strength shall exceed 140 psi when tested on the manufacturer's GRC units. WATER SOLUBLE OR OTHER JOINT FILLERS CAN NOT BE USED. Should small surface voids require filling, use Synkaloid Exterior spackle.

B. Caulk Joints: See caulking manufacturer's instructions for joint preparation and caulking applications.

2.05 PAINT

A. Primer: The GRC shall be primed by the painting contractor with Weathr Rok Primer prior to applying the finish coat. The primer will meet the following test requirements established for the coating: Freeze / Thaw Adhesion: ASTM D 3359/2246 - A minimum rating of 4A after 10 cycles shall be required. (The test will demonstrate these adhesion characteristics on both the Glass Reinforced Concrete, and the joint compound.) Sand all surfaces to be primed using a medium grit sandpaper. Blow off all dust with compressed air. Surface should be clean, dry, and free of contaminants. One coat of Weathr Rok Primer shall be applied to the entire GRC part using a 3/8" nap roller at a spreading rate of 200 square feet per gallon. The primer shall be allowed to cure 12 hours at 75 degrees F. prior to top coating.

B. Top Coating: Finish coating will be applied by the painting contractor, and will be an emulsified acrylic, latex, or water-based epoxy, and shall be suitable for exterior concrete.

2.06 RELATED MATERIALS

A. Fasteners: TWO BIT CLIPS by Plastrglas, Inc. Self drilling, self tapping TAPCON screws DUROCK self taping screws.

B. Adhesives: Solvent base construction adhesives: PL Premium PL 400

C. Joint Tape: 2" wide 6 ga. 10 x 10 Leno scrim (Alkali-Resistant) tape

+ PART 3 DELIVERY, STORAGE, AND HANDLING

3.01 DELIVERY

A. Reinforced concrete units shall be crated in wooden crates, suitably designed for the specific product. The units shall be cushioned and blocked as necessary, to reduce the susceptibility to freight damage. All crates shall bear the manufacturer's name and a stamp indicating they have been inspected and checked by the Quality Assurance Department. The material is to be warranted against deviation from the shop drawings, by the manufacturer until removed from the crates.

3.02 STORAGE

A. Reinforced concrete units shall be stored on the job in a level area in the manufacturer's crates unit ready for use.

B. The Weathr Rok Joint Compound and Weathr Rok Primer, shall be kept from freezing.

+ PART 4 EXECUTION

4.01 INSPECTION

A. Inspection areas directly adjacent to planned installation for conditions that will prevent proper installation of reinforced concrete units.

B. Inspect parts from crates for variations from dimensions and tolerances shown on the manufacturer's shop drawings. Report any discrepancy to the manufacturer before proceeding.

4.02 INSTALLATION

A. Install reinforced concrete units true, plumb, and level in accordance with the manufacturer's printed installation instructions, and shop drawings.

B. Dead air spaces must by vented.

+ PART 5 WARRANTY

5.01 WARRANTY

A. Submit at the time of the shop drawings, the manufacturer's warranty that the materials furnished herein will not warp or sag for a period of one (1) year when installed in conformance with the manufacturer's recommendations.

END OF EXTERIOR SECTION