B. Related Sections include: 1. Division 2, Section , Miscellaneous Cast-in-Place Concrete 2. Division 9, Section , Stone Paving

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1 SECTION STONE VENEER WALLS PART 1 - GENERAL 1.1 SUMMARY A. This Section includes the following applications: 1. Stone Veneer on Cast-in-Place Concrete retaining walls, 2. Stone Veneer on CMU retaining walls. 3. Stone Veneer on freestanding CMU site walls. B. Related Sections include: 1. Division 2, Section , Miscellaneous Cast-in-Place Concrete 2. Division 9, Section , Stone Paving 1.2 SUBMITTALS A. Stone Samples: For each color, grade, finish, and variety of stone required. B. Colored Mortar Samples: For each color required. C. Qualification Data: For stone mason installer. 1.3 QUALITY ASSURANCE A. Installer Qualifications: An installer who employs experienced stone masons and stone fitters who are skilled in installing stone veneer assemblies similar in material, design, and extent to those indicated for this Project and whose projects have a record of successful in-service performance. B. Mockups: Build mockups to verify selections made under sample Submittals and to demonstrate aesthetic effects and qualities of materials and execution. 1. Build mockups for each type of stone veneer assembly indicated above in sizes approximately 48 inches long by 48 inches high by full thickness, including face and backup. 2. Approved Mock-ups may serve as in place-constructed portion of completed work. 1.4 PROJECT CONDITIONS A. Protection of Stone Veneer Assemblies: During construction, cover tops of walls, projections, and sills with waterproof sheeting at end of each day's work. STONE VENEER WALLS

2 B. Stain Prevention: Immediately remove mortar and soil to prevent them from staining the face of stone veneer assemblies. C. Cold-Weather Requirements: Do not use frozen materials or materials mixed or coated with ice or frost. Do not build on frozen subgrade or setting beds. Comply with cold-weather construction requirements contained in ACI 530.1/ASCE 6/TMS Cold-Weather Cleaning: Use liquid cleaning methods only when air temperature is 40 deg F and above and will remain so until masonry has dried. D. Hot-Weather Requirements: Comply with hot-weather construction requirements contained in ACI 530.1/ASCE 6/TMS 602. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. In other Part 2 articles where subparagraph titles below introduce lists, the following requirements apply for product selection: 1. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work include, but are not limited to, the products specified. 2. Products: Subject to compliance with requirements, provide one of the products specified. 2.2 STONE A. Fieldstone: 1. Ramone Brown Oversized. 2. Ramone Brown, and 3. Luna Azul B. Stone as supplied by Quarry Connections, Middletown. MD 21769, C. Walls are to be a blend of predominately the Ramone Brown (regular sized) with a handful of oversized Ramone Brown mixed in. Along the top of the wall there is more of the Luna Azul. D. Stone sizes and coursing to match existing CCC Golf Pro-shop. 2.3 MORTAR MATERIAL A. Portland Cement: ASTM C 150, Type I or II, except Type III may be used for cold-weather construction. Provide natural color or white cement as required to produce mortar color indicated. 1. Low-Alkali Cement: Not more than 0.60 percent total alkali when tested according to ASTM C 114. STONE VENEER WALLS

3 B. Hydrated Lime: ASTM C 207, Type S. C. Masonry Cement: ASTM C 91. D. Sand: Shall be certified highly Washed Sand products to remove all salts that may result in efflorescent in mortar. Contract to provide submittals for approval by Landscape Architect. E. For pigmented mortar, use a colored cement formulation as required to produce color indicated or, if not indicated, as selected from manufacturer's standard formulations. 1. Available Products: a. Colored Portland Cement-Lime Mix: 1) Blue Circle Cement; Eaglebond. 2) Glen-Gery Corporation; Color Mortar Blend. 3) Holnam, Inc.; Rainbow Mortamix Custom Color Cement/Lime. 4) Lafarge Corporation; Centurion Colorbond PL. 5) Lehigh Portland Cement Co.; Lehigh Custom Color Portland/Lime. 6) Riverton Corporation (The); Riverton Portland Cement Lime Custom Color. b. Colored Masonry Cement: 1) Blue Circle Cement; Magnolia Masonry Cement. 2) Essroc Materials, Inc.; Brixment-in-Color. 3) Holnam, Inc.; Rainbow Mortamix Custom Color Masonry Cement. 4) Lafarge Corporation; Centurion Colorbond. 5) Lehigh Portland Cement Co.; Lehigh Custom Color Masonry Cement. 6) National Cement Company, Inc.; Coosa Masonry Cement. 7) Riverton Corporation (The); Flamingo Color Masonry Cement. 8) Southdown, Inc.; Richcolor Masonry Cement. F. Aggregate: ASTM C 144 and as follows: 1. For pointing mortar, use aggregate graded with 100 percent passing No. 16 sieve. 2. Colored Aggregates: Natural-colored sand or ground marble, granite, or other sound stone; of color necessary to produce required mortar color. G. Mortar Pigments: Natural or synthetic iron oxides, compounded for use in mortar mixes and with a record of satisfactory performance in stone masonry mortars. 1. Available Products: H. Water: Potable. a. Bayer Corporation, Industrial Chemicals Div.; Bayferrox Iron Oxide Pigments. b. Davis Colors; True Tone Mortar Colors. c. Lafarge Corporation; Centurion Pigments. d. Solomon Colors; SGS Mortar Colors. STONE VENEER WALLS

4 2.4 VENEER ANCHORS A. Adjustable Veneer Anchors: 2-piece assemblies that allow vertical or horizontal adjustment but resist tension and compression forces perpendicular to wall, for attachment of Veneer Stone to CMU Block and that are capable of withstanding a 100-lbf load in both tension and compression without deforming or developing play in excess of 0.05 inch. Space anchors at 16 on center vertically. 1. Screw-Attached Veneer Anchors: Units with triangular wire tie and rib-stiffened, sheet metal anchor section with screw holes top and bottom and with raised rib-stiffened strap stamped into center to provide a slot for connection of wire tie. a. Products: 1) Dur-O-Wal, a Dayton Superior Company; D/A MASONRY CLEANERS A. Job-Mixed Detergent Solution: Solution of 1/2-cup dry-measure tetrasodium polyphosphate and 1/2-cup dry-measure laundry detergent dissolved in 1 gal. of water. 2.6 STONE FABRICATION A. General: Fabricate stone in sizes and shapes necessary to comply with requirements indicated, including details on Drawings. B. Shape stone for type of masonry (pattern) as follows: 1. Match existing stone veneer of the CCC Pro-shop seat wall. C. Finish exposed faces, edges of stone, jointing thickness, coursing and color to comply with the existing Pro-shop Seat wall. 2.7 MORTAR MIXES A. General: Do not use admixtures, including pigments, air-entraining agents, accelerators, retarders, water-repellent agents, antifreeze compounds, or other admixtures, unless otherwise indicated. 1. Do not use calcium chloride. 2. Mixing Pointing Mortar: Thoroughly mix cementitious and aggregate materials together before adding water. Then mix again, adding only enough water to produce a damp, unworkable mix that will retain its form when pressed into a ball. Maintain mortar in this dampened condition for one to two hours. Add remaining water in small portions until mortar reaches desired consistency. Use mortar within 30 minutes of final mixing; do not re-temper or use partially hardened material. B. Mortar for Stone Masonry: Comply with ASTM C 270, Proportion Specification. STONE VENEER WALLS

5 1. Limit cementitious materials in mortar to Portland cement, mortar cement, and lime. 2. Mortar for Setting Stone: Type S. C. Pigmented Mortar: Select and proportion pigments with other ingredients to produce color required. 1. Pigments shall not exceed 10 percent of Portland cement by weight, or 5 percent of masonry cement by weight. PART 3 - EXECUTION 3.1 SETTING OF STONE VENEER, GENERAL A. Perform necessary field cutting, as stone is set. Do not use power saws to cut stone. Trim and break stone so that edges are dressed to match the dressed stone of CCC. Ease edges slightly to prevent snipping. B. Arrange and trim stones for accurate fit in the style of the CCC Pro-shop, with course heights as indicated, random lengths, and uniform joint widths, with offset between vertical joints as indicated. C. Maintain uniform joint widths except for variations due to different stone sizes and where minor variations are required to maintain bond alignment, if any. Lay walls with joints matching the CCC Pro-shop. 3.2 CONSTRUCTION TOLERANCES A. Variation from Plumb: For vertical lines and surfaces, do not exceed 1/4 inch in 10 feet, 3/8 inch in 20 feet, or 1/2 inch in 40 feet or more. For external corners, expansion joints, control joints, and other conspicuous lines, do not exceed 1/4 inch in 20 feet or 1/2 inch in 40 feet or more. B. Variation from Level: For lines of exposed lintels, sills, parapets, horizontal grooves, and other conspicuous lines, do not exceed 1/4 inch in 20 feet or 1/2 inch in 40 feet or more. C. Variation of Curved Wall Line: For position shown in plan, do not exceed 1/2 inch in 20 feet or 3/4 inch in 40 feet or more. 3.3 INSTALLATION OF ANCHORED STONE VENEER ASSEMBLIES A. Anchor stone veneer to concrete with corrugated-metal veneer anchors as follows: 1. Embed veneer anchors in mortar joints to within 1 inch of face. B. Anchor stone veneer to unit masonry with metal veneer anchors as follows: 1. Embed anchors in veneer mortar joints to within 1 inch of face. STONE VENEER WALLS

6 C. Space veneer anchors not more than 16 inches o.c. vertically and 32 inches o.c. horizontally, with not less than 1 veneer anchor per 2.67 sq. ft. of wall area. Install additional veneer anchors within 12 inches of openings, sealant joints, and perimeter at intervals not exceeding 12 inches. D. Set stone in full bed of mortar with full head joints, unless otherwise indicated. Build veneer anchors into mortar joints, as stone is set. 1. Install continuous wire reinforcement in horizontal joints indicated and attach to seismic veneer anchors, as stone is set. E. Fill collar joint with mortar as stone is set. F. Mortar joints for pointing with mortar to depth of not less than 1 inch. Rake joints uniformly to match the jointing of CCC-Pro-shop. 3.4 ADJUSTING AND CLEANING A. In-Progress Cleaning: Clean stone veneer assemblies as work progresses. Remove mortar fins and smears before tooling joints. B. Final Cleaning: After mortar is thoroughly set and cured, clean stone veneer assemblies as follows: 1. Remove large mortar particles by hand with wooden paddles and nonmetallic scrape hoes or chisels. 2. Test cleaning methods on mockup; leave one-half of panel un-cleaned for comparison purposes. 3. Protect adjacent stone and non-masonry surfaces from contact with cleaner. 4. Wet wall surfaces with water before applying cleaner; remove cleaner promptly by rinsing thoroughly with clear water. 5. Clean stone veneer assemblies by bucket and brush hand-cleaning method described in BIA Technical Note No. 20 Revised II, using job-mixed detergent solution. 6. Clean stone veneer assemblies with proprietary acidic cleaner applied according to manufacturer's written instructions. 3.5 EXCESS MATERIALS AND WASTE A. Disposal as Fill Material: Dispose of clean masonry waste, including mortar and excess or soilcontaminated sand, by crushing and mixing with fill material as fill is placed. 1. Do not dispose of masonry waste as fill within 18 inches of finished grade. END OF SECTION STONE VENEER WALLS