1. Galvanized fence framework, fabric, and accessories. 2. Excavation for post bases, and concrete for post footings.

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1 SECTION CHAIN LINK FENCES PART 1 GENERAL 1.1 SUMMARY A. This Section includes: 1. Galvanized fence framework, fabric, and accessories. 2. Excavation for post bases, and concrete for post footings. 3. Related hardware. 1.2 REFERENCE STANDARDS A. Chain Link Fence Manufacturers Institute (CLFMI), latest edition: 1. CLFMI Voluntary Standard for Chain Link Fence Installation. B. American Society for Testing and Materials (ASTM), latest edition: 1. ASTM A90 Testing for Weight of Coating on Zinc-Content (Galvanized) Iron on Steel Articles. 2. ASTM A153 Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware. 3. ASTM A569 Steel, Carbon (0.15 Max. Percent) Hot-Rolled Sheet and Strip, Commercial Quality. 4. ASTM A817 Metallic-Coated Sheet Wire for Chain Link Fence Fabric. 5. ASTM B6 Specification for Zinc (Slab Zinc). 6. ASTM C31/C31M Making and Curing Concrete Test Specimens in the Field. 7. ASTM C39/C39M Compressive Strength of Cylindrical Concrete Specimens. 8. ASTM C94 Ready-Mixed Concrete. 9. ASTM F567 Installation of Chain-Link Fence. 10. ASTM F626 Fence Fittings. 11. ASTM F1083 Pipe, Steel, Hot-Dipped Zinc-Coated (Galvanized) Welded for Fence Structures. Section Page 1 of 7

2 C. American Concrete Institute (ACI), latest edition 1. ACI 306 Cold Weather Concreting. 2. ACI Standard Specification for Cold Weather Concreting D. American Iron and Steel Institute (AISI), latest edition: 1. AISI T430 Specification for Stainless Steel. 1.3 SUBMITTALS A. Shop Drawings: Prior to fabrication and delivery, submit shop drawings clearly indicating: 1. Plan layout, spacing of components, post footing dimensions, gate components, hardware anchorage, and schedule of components. B. Product Data: Provide data on fabric, posts, accessories, fittings and hardware, including recommended installation instruction and procedures. C. Samples: Submit samples, 6-inches by 6-inches, of fabric material, and typical accessories. 1.4 QUALITY ASSURANCE A. Manufacturer Qualifications: Company specializing and regularly engaged in the domestic manufacture of fencing system with minimum of five years experience. B. Erector Qualifications: Company specializing in the erection of fencing system with documented minimum three years experience, and approved by fence manufacturer. PART 2 PRODUCTS 2.1 MATERIALS A. Framework Materials: Line, terminal and pull posts; top, middle, bottom rails or braces; gate frame materials shall be one of the following: 1. Steel Pipe Schedule 40 pipe with 1.8 ounce per square foot zinc coating on both inside and outside of all pipe, a minimum yield strength of 30,000 psi, conforming to the ASTM F1083, Standard Specifications for Black and Hot-Dipped Zinc Coated (Galvanized Welded and Seamless Steel Pipe for Ordinary Uses) Section Page 2 of 7

3 2. Pipe shall be straight, true to section and conform to the following weights: Pipe Size-Outside Diameter 1-5/8 inches 4 Inches 6-5/8 inches Pipe Weight Lbs./Ft B. Fence Fabric Core Wire: Shall be good commercial quality steel core wire, zinc-coated conforming to ASTM B6, with ASTM A817, Class 1, minimum of 1.2 ounces/sq.ft. of surface area, tested in accordance with ASTM A90.D. C. Fittings: ASTM F626; pressed steel or cast iron, hot-dipped galvanized with minimum of 1.2 ounces/sq.ft. of zinc coating of surface area, or aluminum alloy 360 die cast. 2.2 CHAIN LINK FABRIC A. Fence Fabric: Height as indicated on drawings; one-piece width fabric. 1. Fabric: a. Classification: CLFMI Light Industrial/Standard Residential. b. Mesh Size: 2-inch, diamond. c. Wire Gauge: 9 gauge; inch. 2. Breaking Strength: 1,290 lbs. 3. Selvage: Both top and bottom selvages knuckled. 2.3 FRAMEWORK COMPONENTS A. Framing: All steel parts shall be corrosion-protected as specified herein. B. Fence Posts: 1. All fence posts shall be 4 inch outside diameter galvanized steel pipe. 2. The diameter of the foundation for the posts shall be as shown on the Construction Drawings. C. Rails and Braces: 1-5/8-inch. 2.4 ACCESSORIES A. General: Shall conform to requirements of ASTM F626; galvanized to comply with ASTM A153 (except tie wires and barb tape). Section Page 3 of 7

4 B. Post Caps: Malleable steel, with provisions to permit passage of top rail, snug fitting on post and exclude moisture from inner surface of post. C. Fittings: Sleeves, rail ends, wire ties or clips, stretcher bars and brace bands, fasteners and fittings, as required, finish to match fence system. Fasteners shall be inaccessible from security side of fence. D. Truss Rods: inch diameter, galvanized steel and/or polymer (vinyl) coated. E. Extension Arms: Galvanized or polymer coated V type as specified, pressed steel, complete with provision for anchorage. 1. Arms shall be capable of withstanding without failure, 250 lbs. downward pull at outermost end of arm. 2. Arms shall have hole for passage of top rail with integral post top weather cap. F. Nuts and Bolts: Shall be stainless steel and/or polymer (vinyl) coated, AISI T430. G. Tie Wire: Shall be 9 gauge galvanized steel or polymer coated as specified. H. Stretcher Bars: One-piece lengths equal to full height of fabric, with cross-section size as recommended by manufacturer for gauge mesh used. On lower fabric only, provide one stretcher bar for each gate and end post, and two for each corner and pull post, except where fabric is integrally woven into post. I. Stretcher Bar Bands: Space not over 15 inches o.c., to secure stretcher bars to end, corner, pull end gate posts. 2.5 FINISHES A. Zinc Coating: All steel parts shall be galvanized, by either the hot-dipped or electrolytic process as specified herein. B. Workmanship: 1. Weaving: Fabric shall be helically woven into a diamond mesh having parallel sides and horizontal and vertical diagonals of approximately uniform dimensions. Elongated mesh will not be permitted. 2. End Treatment: All cut ends of fence fabric shall be galvanized at the factory during the weaving process. Section Page 4 of 7

5 3. Process: Weaving shall not crack, craze, tear, or peel the galvanized coating. 2.6 CONCRETE A. Concrete Mix: ASTM C94, normal Portland, air entrained cement with 3/4-inch aggregate, mix materials to obtain minimum compression strength of 3,000 psi. PART 3 EXECUTION 3.1 INSPECTION A. Ensure that final grading in fence locations is complete without irregularities that would interfere with fence installation. B. Ensure that galvanized structural support framing is completed without irregularities that would interfere with the overhead-suspended fabric installation. C. Do not start work until conditions are satisfactory. D. Do not place concrete in foundation borings that have free standing water, soft, spongy, frozen, or otherwise unsuitable conditions. 3.2 PREPARATION A. Measure and lay-out complete fence line. B. Locate, mark and drill post holes for post footings in firm, undisturbed or compacted soil, or bedrock. Maximum spacing of Posts: as indicated on the Construction Drawings. C. Excavate hole depth to a minimum 6 inches deeper than post bottom, with bottom post set in concrete for the full depth of the post, unless otherwise indicated. 3.3 INSTALLATION A. Install framework, fabric, and accessories, as indicated on Construction Drawings and in accordance with ASTM F567 requirements. B. Provide terminal posts (end, and corner) at the beginning and end of each continuous length of fence and at abrupt changes in vertical and horizontal direction of 20 degrees or more. C. Post Setting: Set posts in air entrained concrete around each post in continuous pour, vibrate for consolidation, and check each post for vertical and top alignment. Section Page 5 of 7

6 1. Cast and laboratory cure, in accordance with ASTM C31/C31M one set of four standard cylinder specimens from each concrete truck delivering concrete to the site. 2. Test, in accordance with ASTM C39/C39M 1 specimen at 7 days and 2 specimens at 28 days. 3. Concrete shall have a minimum 28 day compressive strength of 3,000 psi. D. Cold-Weather Placement: Comply with ACI 306, ACI and as follows. Protect concrete work from physical damage or reduced strength that could be caused by frost, freezing actions, or low temperatures. 1. When air temperature has fallen to or is expected to fall below 40 degrees Fahrenheit, uniformly heat water and aggregates before mixing to obtain a concrete mixture temperature of not less than 50 degrees Fahrenheit and not more than 80 degrees Fahrenheit at point of placement. 2. Do not use frozen materials or materials containing ice or snow. 3. Do not use calcium chloride, salt, or other materials containing antifreeze agents or chemical accelerators unless otherwise specified and approved by the Engineer in mix designs. 4. Place concrete insulating blankets, or other method approved by the Engineer, to protect concrete during curing if the air temperature falls below 40 degrees Fahrenheit. E. Install post to within 6-inches from bottom of concrete footing; top of footings shall be 3- inches above grade and sloped to direct water away from post. F. Top Rail: Install through line post loop caps connecting sections with sleeves or couplings to form a continuous brace between terminal posts. Securely fasten top rail to each terminal post. G. Brace Rail: Install brace rail as shown on the Contract Drawings and in accordance with ASTM F567. H. Fabric: Install fabric on security side of fence, unless otherwise indicated or noted on Contract Drawings, and anchor to framework so that fabric remains in tension, free of sags, after pulling force is released. Stretch fabric between terminal posts or at intervals of 100-ft. maximum, whichever is less, and fasten to terminal posts with tension bars threaded through mesh and secured with tension bands at maximum 15-inch intervals. Fasten fabric to top rail, line posts, braces, and bottom rail with tie wires spaced at Section Page 6 of 7

7 maximum 12-inch centers on posts and 15-inch centers on rails. Attach to bottom tension wire with hog rings spaced at maximum 12-inch intervals. I. When indicated, bottom of fabric shall extend below grade and terminated as shown. Keep fabric clean of concrete splash. J. Pass top rail through line post tops to form continuous bracing. Install 7-inch long expansion couplings as recommended by manufacturer to accommodate expansion and contraction of railings. K. Provide metal center and bottom rails in one piece between posts and flush with post on fabric side, using fittings as recommended by manufacturer to accommodate expansion and contraction of railings. L. Fasten fabric to top rail, line posts, braces and bottom rail with wire ties at maximum 12- inch centers. M. Stretch fabric between terminal posts or at intervals of 100 feet maximum, whichever is the least dimension. N. Fasteners: Install nets for fittings, bands, and hardware bolts with peened ends or scored threads to prevent removal. 3.4 ERECTION TOLERANCES A. Maximum Variation From Plumb: 1/4-inch. B. Maximum Offset From True Position: 1 inch. C. Components shall not infringe on adjacent property lines. 3.5 ADJUST AND CLEAN A. Adjust brace rails and tension rods for rigid installation. B. Tighten hardware, fasteners, and accessories. C. Remove excess and waste material from the project site. END OF SECTION Section Page 7 of 7