SECTION 03455

GLASS FIBER REINFORCED CONCRETE

PART 1 GENERAL

SECTION INCLUDES

Architectural precast glass fiber reinforced concrete [wall panels] [cornices] [________].

[Integral insulation].

Supports, anchors, and attachments.

PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS SECTION

Section [_____-__________]: Placement of anchors for [embedding into] [placing in] [welding to] building structural components.

PRODUCTS INSTALLED BUT NOT FURNISHED UNDER THIS SECTION

Section [_____-__________]: Supply of [window units [and glass]] [flashing reglets] for shop placement by this Section.

Section [______-____________]: Metal framing for backup support.

RELATED WORK

Section [01400 - Quality Control: Testing laboratory services] [01410 - Testing Laboratory Services].

Section 03300 - Cast-in-Place Concrete: Building structural

frame.

Section 03366 - Post Tensioned Structural Concrete: Building structural frame.

Section 03410 - Structural Precast Concrete:	Building structural frame.

Section [______-____________]:	Back-up masonry.

Section 05120 - Structural Steel: Building structural frame.

Section 07190 - Vapor and Air Barriers: Air and vapor barrier seal at perimeter of units and at intersection with dissimilar materials.

[Section [______-____________]: Integral insulation.]

Section 07270 - Firestopping: Fire barrier seal between units and edge of floor slab.

Section [______-____________]: Metal flashings to fit recessed reglets in units.

Section 07900 - Joint Sealers: Application of backer rods or bond breakers and joint sealers.

Section [______-____________]: Windows [and glass] site installed in units.

REFERENCES

ANSI/ASTM A36 - Structural Steel.

ANSI/ASTM A386 - Zinc Coating (Hot-Dip) on Assembled Steel Products.

ANSI/ASTM A666 - Austenitic Stainless Steel, Sheet, Strip, Plate, and Flat Bar for Structural Applications

ANSI/ASTM C150 - Portland Cement.

ANSI/ASTM C260 - Air-Entraining Admixtures for Concrete.

ANSI/AWS D1.1 - Structural Welding Code.

ASTM A325 - High Strength Bolts for Structural Steel Joints.

ASTM A446 - Steel Sheet, Zinc-Coated (Galvanized) by the

Hot Dip Process, Structural (Physical) Quality.

ASTM A500 - Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Round and Shapes.

ASTM A501 - Hot-Formed Welded and Seamless Carbon Steel Structural Tubing.

ASTM A570 - Hot-Rolled Carbon Steel Sheet and Strip, Structural Quality.

ASTM A611 - Steel, Cold-Rolled Sheet, Carbon, Structural.

ASTM C33 - Concrete Aggregates.

ASTM C494 - Chemical Admixtures for Concrete.

ASTM C618 - Fly Ash and Raw Calcinated Natural Pozzolan for Use as a Mineral Admixture in Portland Cement Concrete.

ASTM C979 - Pigments for Integrally Colored Concrete.

ASTM E84 - Test for Surface Burning Characteristics of Building Materials.

PCI - Recommended Practice for Glass Fiber Reinforced Concrete Panels.

PCI MNL-117 - Manual for Quality Control for Plants and Production of Architectural Precast Concrete Products.

PERFORMANCE REQUIREMENTS

Units to withstand own weight, design loads due to pressure and suction of wind, erection forces, live and dead loads. Limit deflection of units to accommodate adjacent construction and opening tolerances.

Component connections to accommodate building movement, damage to components wracking of joint connections, and breakage of seals [or moisture penetration].

Provide adjustment to accommodate misalignment of structure without permanent distortion.

Insulated units to achieve insulation value R of [____] (RSI of [____]).

Units to conform to regulatory requirements for life and fire safety.

Fire Resistance Rating of [5/5/15] [__/__/__] in accordance with ASTM E84.

SUBMITTALS

Submit under provisions of Section [01300] [________].

Shop Drawings: Indicate locations, fabrication details, reinforcement, [metal framing details,] connection details, dimensions, and relationship to adjacent materials. [Provide erection drawings.]

Samples:	Submit [two] [____] samples [__ x __] inch ([__ x __] mm) in size illustrating surface color, finish and texture.

Manufacturer's Installation Instructions: Indicate [surface cleaning] [surface retarder] instructions.

QUALITY ASSURANCE

Perform Work in accordance with PCI - Recommended Practice for Glass Fiber Reinforced Concrete Panels.

Welding: ANSI/AWS D1.1.

Maintain [one copy] [[____] copies] of [each] document on site.

QUALIFICATIONS

Fabricator: Company specializing in performing the work of this Section with minimum [__________] years [documented] experience.

Fabricator and Erector: Qualified in accordance with PCI MNL-117.

Design wall units under direct supervision of a Professional Structural Engineer experienced in design of this work and licenced [at the place where the Project is located] [in the State of [____________]].

FIELD SAMPLES

Provide under provisions of Section [01400] [________].

Construct [one] [____] sample panel, [_____] feet ([____]

long by [______] feet ([____] m) wide, with surface

finish applied.

Locate [where directed] [__________________________].

Accepted sample may [not] remain as part of the Work.

****** [OR] ******

MOCKUP

Provide mockup under provisions of Section [01400] [________].

Construct [one] [____] sample panel, [_____] feet ([____]

long by [______] feet ([____] m) wide, with surface finish applied, including supporting backup structure, attachments, fire, air and vapor seals applied and [________________].

Mockup may [not] remain as part of the Work.

PRE-INSTALLATION CONFERENCE

Convene [one] [_____] week prior to commencing work of this Section, under provisions of Section [01039] [________].

DELIVERY, STORAGE AND HANDLING

Deliver, store, protect and handle units to site under provisions of Section [01600] [________].

Handle units to position, consistent with their shape and design. Lift and support only from support points.

Lifting Device: Capable of maintaining unit shape during manufacture, storage, transportation, erection, and in position for fastening.

Blocking and Lateral Support During Transport and Storage: Clean, non-staining, without causing harm to exposed surfaces. Provide temporary lateral support to prevent bowing and warping. Place spacers in same location during transport and site storage.

Protect edges of units to prevent staining, chipping, or spalling of concrete.

FIELD MEASUREMENTS

Verify that field measurements are as [indicated [on shop drawings]] [instructed by the manufacturer].

COORDINATION

Coordinate Work under provisions of Section [01039] [________].

Coordinate the Work with installation of backup supporting structure [, windows] [, application of joint sealers].

PART 2 PRODUCTS

FABRICATORS

[__________________________________].

[__________________________________].

[__________________________________].

Substitutions: Under provisions of Section [01600] [________].

CONCRETE MATERIALS

Cement: ANSI/ASTM C150, Portland Type [I - Normal] [II -Sulphate Resisting]; [white] [gray] color.

Concrete Materials: [ASTM C33] [________________].

Reinforcement: Alkali resistant [chopped] glass fiber rovings specifically formulated for use in concrete, with lengths varying from 1-1/2 to 2 inches (38 to 51 mm).

Admixtures: Conforming to ANSI/ASTM C260, ASTM C494 and ASTM C618.

Color Pigment: [ASTM C979,] [________] type, [________] color, resistant to alkali, resistant to fading in direct sunlight; [________] manufactured by [________________].

FRAMING MATERIALS

[Metal Framing Members: [ASTM A446, galvanized steel] [ASTM A611 cold rolled carbon steel] [ASTM A570 hot rolled carbon steel], Grade [B] [____].]

****** [OR] ******

[Metal Framing Members: Structural tubing, [ASTM A500, Grade [B] [____]] [ASTM A501].

SURFACE FINISH MATERIALS

Surface Finish Aggregate: Clean, washed, [smooth] [________] natural [gravel] [quartz] [granite] [limestone] [marble] [________]; [____] inch ([________] mm) nominal size; [____] color [as selected]; [from single source throughout] [from [________] source] [, conforming to ASTM C33].

****** [OR] ******

Surface Finish Aggregate: Conforming to sample [in office of Architect/Engineer] [________________].

SUPPORT DEVICES

Connecting and Support Devices: [ANSI/ASTM A36 [Weldable] [General Construction] steel] [ANSI/ASTM A666 Grade [________], Type [________] stainless steel].

Fasteners:	ASTM A325, high strength steel.

Primer: [Zinc rich oil alkyd] [________________].

ACCESSORIES

Integral Insulation:	Rigid [polystyrene] [polyurethane] [________] type, as specified in Section [07212] [________].

****** [OR] ******

Integral Insulation:	Rigid [polystyrene] [polyurethane] [________] type, [insulation value R of [____] (RSI of [____])] [[____] inch ([____] mm) thick]; [________] manufactured by [________________].

Reglets:	[Galvanized steel] [Stainless steel] [Plastic] shaped and flanged to remain in place once cast; [foam plastic filled] [taped closed] to eliminate concrete intrusion.

Sealant Materials: Type [____] sealant and related materials, as specified in Section [07900] [________].

MIX

Concrete Mix: Of strength to accommodate panel configuration, panel size and weight, and manufacturing criteria [, air entrained].

FABRICATION

Maintain plant records and quality control program during production of units. Make records and access to plant available to Architect/Engineer upon request.

Use rigid molds, constructed to maintain unit panel uniform in shape, size and finish.

Spray-up concrete mix in multiple passes; maintain consistent quality during manufacture.

[Place metal framing members in position in mold.]

Embed anchors, inserts, plates, angles, and other cast-in items as indicated on shop drawings.

Cast [window units] [________] in place while fabricating unit panels. Protect window units from damage.

Fit integral insulation into units for continuous thermal protection of building interior.

Place and embed flashing reglets [provided by Section [________]] continuous and straight.

Fabricate connecting devices, [items fit to framing members,] fasteners and accessories for placement by Section [________].

Locate hoisting devices to permit device removal after erection.

Cure units to minimize appearance blemishes such as non-uniformity, staining or surface cracking.

Identify each unit with corresponding code on erection drawings, in location not visible in finish work.

FINISH - PANEL UNITS

Ensure exposed-to-view finish surfaces of units are uniform in color and appearance.

Sand blast exposed-to-view precast unit surfaces to [[____] percent of unit aggregate surface] [light] [medium] [heavy] exposure. Protect adjacent surfaces.

FINISH - SUPPORT DEVICES [AND METAL FRAMING]

Clean surfaces of rust, scale, grease, and foreign matter.

Prime paint in [one coat] [two coats], except surfaces in direct contact with concrete or requiring field welding.

****** [OR] ******

Galvanize after fabrication to [2.0] [____] oz/sq ft ([610] [____] g/sq m) in accordance with ANSI/ASTM A386.

PART 3 EXECUTION

EXAMINATION

Verify structural frame opening dimensions under provisions of Section [01039] [________].

Verify building structure, anchors, devices, and openings are ready to receive work of this Section.

PREPARATION

Provide for erection procedures and induced loads during erection. Maintain temporary bracing in place until final support is provided.

Provide necessary hoisting equipment.

ERECTION

Erect units without damage to shape or finish. Replace or repair damaged panels.

Erect units level and plumb within allowable tolerances.

Align and maintain uniform horizontal and vertical joints as erection progresses.

When units require adjustment beyond design or tolerance criteria, discontinue affected work and advise Architect/Engineer.

Site cutting of panels not permitted.

[Fasten] [and] [Weld] units in place. [Perform welding in accordance with ANSI/AWS D1.1.]

Touch-up [field welds and] scratched or damaged [primed painted] [galvanized] surfaces.

TOLERANCES

Maximum Variation from Plane of Location: 1/4 inch in 10 feet and 3/8 inch in 100 feet (2 mm/m and 3mm in 30 m), non-cumulative.

Maximum Offset from True Alignment Between Two Connecting Units: [1/4] [____] inch ([6] [____] mm).

Maximum Out of Square: [1/8] [____] inch in 10 feet ([one] [____] mm/m), non-cumulative.

Variation in Dimensioning Indicated on Shop Drawings:

Plus or minus [1/8] [____] inch ([3] [____] mm).

Maximum Misalignment of Anchors, Inserts, Openings: [1/8] [____] inch ([3] [____] mm).

Bowing of Units: Length of Unit/ [360] [____].

Exposed Joint Dimension:	[1/2] [____] inch ([12] [____] mm) plus or minus 1/4 inch (6 mm).

Location of Reglets:	[1/4] [____] inch ([6] [____] mm) from true position.

FIELD QUALITY CONTROL

Field [inspection and] testing will be performed under provisions of Section [01400] [________].

[Take water absorption test in accordance with PCI MNL-117.]

PROTECTION

Protect units from damage.

Provide non-combustible shields during welding operations.

END OF SECTION