SECTION MORTAR AND MASONRY GROUT

Transcription

1 SECTION MORTAR AND MASONRY GROUT PART 1 GENERAL 1.1 SECTION INCLUDES A. Mortar for masonry. B. Grout for masonry. 1.2 RELATED SECTIONS A. Section Quality Requirements: Testing laboratory services. B. Section Unit Masonry Assemblies: Installation of mortar and grout. C. Section Steel Doors and Frames: Grouting steel door frames installed in masonry. 1.3 REFERENCES A. Unless otherwise noted the most current issue of the reference shall be used. B. ACI 530/ASCE 5/TMS Building Code Requirements For Masonry Structures; American Concrete Institute International; C. ACI 530.1/ASCE 6/TMS Specification for Masonry Structures; American Concrete Institute International. D. ASTM C 5 - Standard Specification for Quicklime for Structural Purposes. E. ASTM C Test Method for Pier Test for Refractory Masonry. F. ASTM C Standard Specification for Hydrated Lime for Masonry Purposes. G. ASTM C Standard Specification for Packaged, Dry, Combined Materials for Mortar and Concrete. H. ASTM C Standard Specification for Aggregates for Masonry Grout. I. ASTM E Standard Test Method for Water Penetration and Leakage Through Masonry J. ASTM C Standard Specification for Modifiers for Masonry Mortars. K. ASTM C Standard Test Method for Compressive Strength of Laboratory Constructed Masonry Prisms. L. Contractor to verify that specified cleaning is done during progress of work and at the completion of each subcontractor's work. 1.4 SUBMITTALS A. See Section Administrative Requirements, for submittal procedures. B. Product Data: Include design mix and indicate whether the Proportion or Property specification of ASTM C 270 is to be used. Also include required environmental conditions and admixture limitations. C. Samples: Submit two samples of mortar, illustrating mortar color and color range. D. Contractor shall retain the services of an independent testing laboratory to test, evaluate and report on the following: 1. Submit reports on mortar indicating compliance with component mortar materials to requirements of ASTM C 270 and test and evaluation reports per ASTM C Reports: Submit reports on grout indicating compliance with component grout materials to requirements of ASTM C 476 and test and evaluation reports to requirements of ASTM C E. Manufacturer's Certificate: Certify that products meet or exceed specified requirements. F. Manufacturer's Instructions: Submit packaged dry mortar manufacturer's installation instructions. 1.5 QUALITY ASSURANCE A. Comply with provisions of ACI 530/ASCE 5/TMS 402 and ACI 530.1/ASCE 6/TMS 602, except where exceeded by requirements of the contract documents. 1. Maintain one copy of each document on project site. 1.6 DELIVERY, STORAGE, AND HANDLING A. Maintain packaged materials clean, dry, and protected against dampness, freezing, and foreign matter MORTAR AND MASONRY GROUT

2 SECTION MORTAR AND MASONRY GROUT 1.7 ENVIRONMENTAL REQUIREMENTS A. Maintain materials and surrounding air temperature to minimum 40 degrees F prior to, during, and 48 hours after completion of masonry work. B. Cold Weather Requirements: Comply with recommendations of ACI C. Maintain materials and surrounding air temperature to maximum 90 degrees F prior to, during, and 48 hours after completion of masonry work. D. Hot Weather Requirements: Comply with recommendations of ACI PART 2 PRODUCTS 2.1 MATERIALS A. Masonry Cement: ASTM C 91, Type S. 1. Colored Mortar: a. Type 1 Colored Mortar at Stony Creek Elementary School, Premixed cement as required to match Architect s sample. B. Portland Cement: ASTM C 150, Type I Normal, or Type II - Moderate; standard gray color. C. Blended Cement: ASTM C 595, Type IP or i(pm) for type I or II cement.. D. Packaged Dry Mortar: ASTM C 387, using gray color cement. E. Hydrated Lime: ASTM C 207, Type S or M. F. Mortar Aggregate: ASTM C 144, standard masonry type. G. Grout Aggregate: ASTM C 404. H. Pigments for Colored Mortar: Iron or chromium oxides with demonstrated stability and colorfastness. Do not use carbon black. 1. ASTM C 979: Pigment shall not exceed 10% of the weight of portland cement. 2. Colors: As required to match Architect's color samples. 3. Acceptable products: a. Soloman Colors: b. Davis Colors: c. Color Solutions, Inc.: d. Prism Pigments: e. Western Lime and Cement Co. 4. Substitutions: See Section Product Requirements. I. Water: Clean and potable. J. Accelerating Admixture: Not Permitted. K. Moisture-Resistant Admixture: Water repellent compound designed to reduce capillarity; Integral liquid polymeric admixture for mortar added during mixing, capable of achieving a Class E Rating when evaluated using ASTM E 514 with the test extended to 72 hours, using the rating criteria specified in ASTM E 514. L. Bonding Agent: Latex type. 2.2 MORTAR MIXES A. Mortar for Unit Masonry: ASTM C 270, Property Specification. 1. Engineered Masonry: Type S. 2. Masonry below grade and in contact with earth: Type S. 3. Exterior, loadbearing masonry: Type M or S. 4. Exterior, non-loadbearing masonry: Type M or S. 5. Interior, loadbearing masonry: Type M or S. 6. Interior, non-loadbearing masonry: Type N. 7. Pointing mortar: Prehydrated Type N with maximum 2 percent ammonium stearate or calcium stearate per cement weight. B. Stain Resistant Pointing Mortar: One part Portland cement, 1/8 part hydrated lime, and two parts graded (80 mesh) aggregate, proportioned by volume. Add aluminum tristearate, calcium stearate, or ammonium stearate equal to 2 percent of Portland cement by weight. C. Colored Mortar: Proportion selected pigments and other ingredients to match Architect's sample, MORTAR AND MASONRY GROUT

3 SECTION MORTAR AND MASONRY GROUT without exceeding manufacturer's recommended pigment-to-cement ratio. 2.3 MORTAR MIXING A. Thoroughly mix mortar ingredients using mechanical batch mixer, in accordance with ASTM C 270 and in quantities needed for immediate use. B. Maintain sand uniformly damp immediately before the mixing process. C. Add mortar color in accordance with manufacturer's instructions. Provide uniformity of mix and coloration. D. Do not use anti-freeze compounds to lower the freezing point of mortar. Do not use set accelerators unless approved in writing by The Brick Institute of America (BIA), National Concrete Masonry Association (NCMA), ASTM C 270, the Architect of Record and the Engineer of Record. The use of admixtures does not relax cold weather protection requirements. E. If water is lost by evaporation, re-temper only within two hours of mixing. F. Use mortar within two hours after mixing at temperatures of 90 degrees F, or two-and-one-half hours at temperatures under 40 degrees F. 2.4 GROUT MIXES A. Bond Beams and Lintels: 3,000 psi strength at 28 days; 8-10 inches slump; provide grout in accordance with ASTM C 476. Use or fine grout in accordance with ACI 530 and B. Engineered Masonry: Unless otherwise noted provide grout with 3,000 psi strength at 28 days; 7-8 inches slump; mix in accordance with ASTM C Coarse grout for spaces with smallest horizontal dimension greater than 2 inches. 2.5 GROUT MIXING A. Thoroughly mix grout ingredients in quantities needed for immediate use in accordance with ASTM C 476 B. Add admixtures in accordance with manufacturer's instructions; mix uniformly. C. Do not use anti-freeze compounds to lower the freezing point of grout. Do not use set accelerators unless approved in writing by The Brick Institute of America (BIA), National Concrete Masonry Association (NCMA), ASTM C 270, the Architect of Record and the Engineer of Record. The use of admixtures does not relax cold weather protection requirements. 2.6 PRECONSTRUCTION TESTING A. Testing will be conducted by an independent test agency, in accordance with provisions of Section B. Mortar Mixes: Test mortars pre-batched by weight in accordance with ASTM C 270 or ASTM C 780 recommendations for preconstruction testing for compressive strength, consistency, mortar aggregate ratio, water content, air content and splitting tensile strength. 1. Test results will be used to establish optimum mortar proportions and establish quality control values for construction testing. C. Grout Mixes: Test grout batches in accordance with ASTM C 1019 procedures for compressive strength and slump. 1. Test results will be used to establish optimum grout proportions and establish quality control values for construction testing. PART 3 EXECUTION 3.1 PREPARATION A. Apply bonding agent to existing smooth finish concrete surfaces. 1. Plug clean-out holes for masonry with brick or masonry units to match adjacent surfaces. Brace masonry for wet grout pressure. B. Request inspection of spaces to be grouted MORTAR AND MASONRY GROUT

4 SECTION MORTAR AND MASONRY GROUT 3.2 INSTALLATION A. Install mortar and grout to requirements of Section 04810; and in accordance with ACI 530.1/ASCE 6. B. Work grout into masonry cores and cavities to eliminate voids. C. Do not install grout in lifts greater than 16 inches without consolidating grout by rodding. D. Do not displace reinforcement while placing grout. E. Remove excess mortar from grout spaces. 3.3 GROUTING A. Use either high-lift or low-lift grouting techniques, at Contractor's option, in accordance with ACI B. Consolidate grout with a mechanical vibrator on any grout pours greater than 12 inches in height; and in accordance with ACI Grout pours 12 inches or less in height shall be mechanically vibrated or puddled. Do not over consolidate. C. When grouting is stopped for 1 hour or longer, stop the grout pour 1 1/2 inches below the top of the masonry to create a shear key. D. Pour grout only after reinforcing is in place. Prevent displacement of bars as grout is poured. E. Place grout for each pour continuously and consolidate immediately; do not interrupt pours for more than 1-1/2 hours. F. Place grout for spanning elements in single, continuous pour. 3.4 FIELD QUALITY CONTROL A. An independent testing agency will perform field tests, in accordance with provisions of Section Tests and evaluation listed in this Article will be performed during construction for each 5000 square feet of wall area or fraction thereof. B. Test and evaluate mortar in accordance with ASTM C 780 procedures. 1. Test with same frequency as specified for masonry units. C. Test and evaluate grout in accordance with ASTM C 1019 procedures. 1. Test with same frequency as specified for masonry units. D. Prism Tests: Test masonry and mortar panels for compressive strength in accordance with ASTM C 1388, and for flexural bond strength in accordance with ASTM C 1072 or ASTM E 518; perform tests and evaluate results as specified in individual masonry sections 1. Prepare set of prisms for testing at 7 days and 1 set for testing at 28 day END OF SECTION MORTAR AND MASONRY GROUT

5 SECTION MASONRY RESTORATION AND CLEANING PART 1 GENERAL 1.1 SECTION INCLUDES A. Replacement of brick units. B. Re-pointing mortar joints. C. Repair of damaged masonry. D. Moisture repellent coating. 1.2 RELATED SECTIONS A. Section Final Cleaning. B. Section Mortar and Masonry Grout. C. Section Unit Masonry Assemblies: Brick Masonry Units. D. Section Joint Sealers. 1.3 REFERENCES A. Unless otherwise noted the most current issue of the reference shall be used. B. ACI 530 Building Code Requirements for Masonry Structures. C. ACI Specifications for Masonry Structures. D. IMIAC International Masonry Industry All-Weather Council: Recommended Practices and Guide Specification for Cold Weather Masonry Construction. E. IMIAC International Masonry Industry All-Weather Council: Recommended Practices and Guide Specification for Hot Weather Masonry Construction. 1.4 SUBMITTALS A. Submit under provisions of Section B. Product Data: Provide data on masonry sealers, cleaning compounds, and cleaning solutions. 1.5 QUALITY ASSURANCE A. Perform work in accordance with ACI 530 and ACI B. Maintain one copy of each document on site. C. Restorer: Company specializing in masonry restoration with minimum 5 years documented experience. 1.6 DELIVERY, STORAGE, AND HANDLING A. Deliver, store, protect, and handle products to site under provisions of Section B. Deliver masonry and mortar neatly stacked and tied on pallets. C. Store restoration cleaner material in manufacturer s packaging. D. Store sand on waterproof tarp; cover when not in use with waterproof opening. 1.7 PROTECTION A. Protect elements surrounding the work of this section from damage or disfiguration. B. Immediately remove stains, efflorescence, or other excess resulting from the work of this section. C. Protect roof membrane and flashing from damage. Lay ½ inch plywood over 1 inch rigid insulation placed on roof surfaces over full extent of work area and traffic route. 1.8 ENVIRONMENTAL REQUIREMENTS A. Cold Weather requirements: IMIAC Recommended Practices and Guide Specifications for Cold Weather Masonry Construction. B. Hot Weather Requirements: IMIAC Recommended Practices and Guide Specifications for Hot Weather Masonry Construction. C. Do not sandblast or use process creating dust or dirt when wind is over 10 miles per hour (16 kilometer per hour) MASONRY RESTORATION AND CLEANING

6 SECTION MASONRY RESTORATION AND CLEANING 1.9 SEQUENCING A. Sequence work under the provisions of Section B. Perform re-pointing before cleaning masonry surfaces SCHEDULING A. Schedule work under the provisions of Section PART 2 PRODUCTS 2.1 MANUFACTURERS A. Water Repellents: 1. Sure Klean Weather Seal Blok-Guard & Graffiti Control II: PROSOCO, Inc.; 2. Protectosil Chem-Trete BSM 400: Evonik Industries; 3. Hydrozo Environseal PBT: BASF; B. Masonry Restoration and Cleaning: 1. Diedrich Chemicals, Milwaukee, WI Phone: (414) Sure Klean Restoration Cleaner, Pro-So-Co, Inc., Kansas City, KS Phone: (800) MORTAR MATERIALS A. Confirm to requirements of section MASONRY MATERIALS A. Brick: Brick to match existing. Conform to requirements of Section PART 3 EXECUTION 3.1 EXAMINATION A. Verify that surfaces to be restored are ready for work in this section. 3.2 PREPARATION A. Carefully remove and store fixtures, fittings, finishing hardware, and accessories. B. Close off, seal, mask, and board up areas, landscaping, materials, and surfaces not receiving work of this section to protect from damage. C. Construct dust proof and weather proof partitions to close off occupied areas. D. Protect surrounding elements from damage due to restoration procedures. E. Mask immediately adjacent surfaces with material that will withstand cleaning and restoration procedures. 3.3 REBUILDING A. Cut out damaged and deteriorated masonry with care in a matter to prevent damage to any adjacent remaining materials. B. Support structure as necessary in advance of cutting out units. C. Cut away loose or unsound adjoining masonry and mortar to provide firm and solid bearing for new work. D. Build in new or reclaimed masonry units. E. Mortar Mix: Colored and proportioned to match existing work. F. Ensure that reinforcing and flashings are correctly located and built in. G. Install built in masonry work to match and align with existing joints and coursing true and level, faces plumb and in line. Built in all openings, accessories, and fittings MASONRY RESTORATION AND CLEANING

7 SECTION MASONRY RESTORATION AND CLEANING 3.4 REPOINTING A. Cut out loose and disintegrated mortar in joints to minimum ¾ inch depth or until sound mortar is reached. B. Utilize power tools only after test cuts determine no damage to masonry units will result. C. Do not damage masonry units. D. When cutting is complete, remove dust and loose material with water jet. E. Dampen joint and apply mortar. Pack tightly in ¼ inch layers. Form a smooth, compact joint to match existing. F. Moist cure for 72 hours. 3.5 RESTORATION CLEANING A. Clean surfaces and remove large particles with wood scrapers or non-ferrous wire brush. B. Brush coat masonry with restoration cleaner, mixed into solution in accordance with manufacturer s instructions. C. Provide a second application if required by preliminary test of sample area. D. Allow sufficient time for solution to remain on masonry and agitate with soft fiber brush or sponge. E. Rinse from bottom up with potable water applied at 400 psi and at a rate of 4 gallons per minute. 3.6 CLEANING A. As work proceeds and on completion, remove excess mortar, smears, and dropings. B. Clean surrounding surfaces. 3.7 MASONRY SEALING A. Seal the masonry indicated in the drawings in accord with manufacturer s printed instructions. 3.8 SCHEDULE A. Walls as indicated on drawings: Re-point, clean with solution, rinse with cold water and seal with masonry sealer. END OF SECTION MASONRY RESTORATION AND CLEANING

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9 SECTION ARCHITECTURAL CAST STONE PART 1 GENERAL 1.1 SECTION INCLUDES A. Architectural cast stone. B. Units required are indicated on the drawings as cast stone. 1.2 RELATED SECTIONS A. Section Unit Masonry Assemblies: Installation of cast stone in conjunction with masonry. B. Section Joint Sealers: Materials and execution methods for sealing soft joints in cast stone work. 1.3 REFERENCES A. Unless otherwise noted the most current issue of the reference shall be used. B. ACI Building Code Requirements for Reinforced Concrete. C. ASTM A Standard Specification for Steel Welded Wire Reinforcement, Plain, for Concrete. D. ASTM A 615/A 615M - Standard Specification for Deformed and Plain Billet-Steel Bars for Concrete Reinforcement. E. ASTM C 33 Standard Specification for Concrete Aggregates. F. ASTM C 150 Standard Specification for Portland Cement. G. ASTM C 270 Standard Specification for Mortar for Unit Masonry. H. ASTM C 494/C 494M - Standard Specification for Chemical Admixtures for Concrete. I. ASTM C 642 Standard Test Method for Density, Absorption, and Voids in Hardened Concrete. J. ASTM C Standard Specification for Pigments for Integrally Colored Concrete. K. ASTM C 1364 Standard Specification for Architectural Cast Stone. 1.4 SUBMITTALS A. See Section Administrative Requirements, for submittal procedures. B. Manufacturer's Qualification Data: Documentation showing compliance with specified requirements. C. Product Data: Test results of cast stone components made previously by the manufacturer. 1. Include one copy of ASTM C 1364 for Architect s use. D. Shop Drawings: Include building elevations and plans showing the exact location of each cast stone piece. Drawings shall show the exposed faces, sections, dimensions, arrangement of joints, anchoring methods, type of anchors, and piece numbers and location of anchors, section cuts, joint, and finish details. 1. Manufacturer is responsible for design of all connections. E. Verification Samples: Pieces of actual cast stone components not less than 12 inches square, illustrating range of color and texture to be anticipated in components furnished for the project. F. Provide Mortar Color Selection Samples. 1.5 QUALITY ASSURANCE A. Design anchors and supports under direct supervision of a Professional Structural Engineer, registered in the State in which the Project is located. 1. Design anchors to resist positive and negative wind pressures and other loads as required by applicable code. 2. Design anchor attachment to stone with a factor of safety of 5:1. 3. Design each individual anchor with a factor of safety in the vertical dead-load-bearing direction of 4:1 and in the horizontal lateral-load-bearing direction of 2:1. B. Manufacturer Qualifications: A current producer member of the Cast Stone Institute with a minimum of 5 years of experience in producing cast stone of the types required for project and: 1. Adequate plant capacity to furnish quality, sizes, and quantity of cast stone required without delaying progress of the work. 2. Products previously produced by plant and exposed to weather that exhibit satisfactory appearance. C. Mock-Up: Provide full size cast stone components for installation in mock-up of exterior wall ARCHITECTURAL CAST STONE

10 SECTION ARCHITECTURAL CAST STONE 1. Approved mock-up will become standard for appearance and workmanship. 2. Mock-up may not remain as part of the completed work. 3. Remove mock-up not incorporated into the work and dispose of debris. 1.6 DELIVERY, STORAGE, AND HANDLING A. Deliver cast stone components secured to shipping pallets and protected from damage and discoloration. Protect corners from damage. B. Number each piece individually to match shop drawings and schedule. C. Store cast stone components and installation materials in accordance with manufacturer's instructions. D. Store cast stone components on pallets with nonstaining, waterproof covers. Ventilate under covers to prevent condensation. Prevent contact with dirt. E. Protect cast stone components during handling and installation to prevent chipping, cracking, or other damage. F. Store mortar materials where contamination can be avoided. G. Schedule and coordinate production and delivery of cast stone components with unit masonry work to optimize on-site inventory and to avoid delaying the work. PART 2 PRODUCTS 2.1 MANUFACTURERS A. Architectural Cast Stone: 1. Any current producer member of the Cast Stone Institute. 2. American Artstone Co., Inc., New Ulm, MN. 3. Architectural Ornaments, Inc., Kansas City, MO. 4. Edwards Cast Stone Company, Dubuque, IA. 2.2 ARCHITECTURAL CAST STONE A. Cast Stone: Architectural concrete product manufactured to simulate appearance of natural limestone, complying with ASTM C Compressive Strength: As specified in ASTM C 1364; calculate strength of pieces to be field cut at 80 percent of uncut piece. 2. Freeze-Thaw Resistance: Demonstrated by laboratory testing in accordance with ASTM C Absorption: ASTM C 1195 or ASTM C 642: 6 % maximum for products at 28 days. 4. Surface Texture: Medium grained texture, with no bugholes, air voids, or other surface blemishes visible from distance of 20 feet. 5. Color: Match sample on file at Architect's office. 6. Remove cement film from exposed surfaces before packaging for shipment. B. Shapes: Provide shapes indicated on drawings. 1. Variation from Any Dimension, Including Bow, Camber, and Twist: Maximum of plus/minus 1/8 inch or length divided by 360, whichever is greater, but not more than 1/4 inch. 2. Unless otherwise indicated on drawings, provide: a. Wash or slope of 1:12 on exterior horizontal surfaces. b. Drips on projecting components, wherever possible. c. Raised fillets at back of sills and at ends to be built in. C. Reinforcement: Provide reinforcement as required to withstand handling and structural stresses; comply with ACI MATERIALS A. Portland Cement: ASTM C For Units: Type I, white or gray as required to match Architect 's sample. 2. For Mortar: Type I or II, except Type III may be used in cold weather. B. Coarse Aggregate: ASTM C 33, except for gradation; granite, quartz, or limestone ARCHITECTURAL CAST STONE

11 SECTION ARCHITECTURAL CAST STONE C. Fine Aggregate: ASTM C 33, except for gradation; natural or manufactured sands. D. Pigments: ASTM C 979, inorganic iron oxides; do not use carbon black. E. Admixtures: ASTM C 494/C 494M. F. Water: Potable. G. Reinforcing Bars: ASTM A 615/A 615M deformed bars, galvanized. H. Steel Welded Wire Reinforcement: ASTM A 185, galvanized. I. Embedded Anchors, Dowels, and Inserts: Type 304 stainless steel, of type and size as required for conditions. J. Mortar: Portland cement-lime, ASTM C 270, Type N; do not use masonry cement. K. Sealant: As specified in Section L. Cleaner: General-purpose cleaner designed for removing mortar and grout stains, efflorescence, and other construction stains from new masonry surfaces without discoloring or damaging masonry surfaces; approved for intended use by cast stone manufacturer and by cleaner manufacturer for use on cast stone and adjacent masonry materials. PART 3 EXECUTION 3.1 EXAMINATION A. Examine construction to receive cast stone components. Notify Architect if construction is not acceptable. B. Do not begin installation until unacceptable conditions have been corrected. 3.2 INSTALLATION A. Install cast stone components in conjunction with masonry, complying with requirements of Section B. Mechanically anchor cast stone units indicated; set remainder in mortar. C. Setting: 1. Drench cast stone components with clear, running water immediately before installation. 2. Set units in a full bed of mortar unless otherwise detailed. 3. Fill vertical joints with mortar. 4. Fill dowel holes and anchor slots completely with mortar or non-shrink grout. D. Joints: Make all joints 3/8 inch, except as otherwise detailed. 1. Rake mortar joints 3/4 inch for pointing. Scrub face of each stone to remove excess mortar before it sets. 2. Point joints with mortar in layers 3/8 inch thick and tool to a slight concave profile. 3. Rake the following mortar joints for sealant. Scrub face of each stone to remove excess mortar before it sets. a. Head joints in top courses, including copings, parapets, cornices, sills, and steps. b. Joints in projecting units. c. Joints between rigidly anchored units, including soffits, panels, and column covers. d. Joints below lugged sills and stair treads. e. Joints below ledge and relieving angles. f. Joints labeled "expansion joint". E. Sealant Joints: Install backer rods and sealants as specified in Section Prime cast stone in areas to receive sealant and backer rod; in accordance with sealant manufacturer's and cast stone manufacturer's recommendations. F. Installation Tolerances: 1. Variation from Plumb: Not more than 1/8 inch in 10 feet or 1/4 inch in 20 feet or more. 2. Variation from Level: Not more than 1/8 inch in 10 feet or 1/4 inch in 20 feet, or 3/8 inch maximum. 3. Variation in Joint Width: Not more than 1/8 inch in 36 inches or 1/4 of nominal joint width, whichever is less. 4. Variation in Plane Between Adjacent Surfaces (Lipping): Not more than 1/16 inch difference between planes of adjacent units or adjacent surfaces indicated to be flush with units ARCHITECTURAL CAST STONE

12 SECTION ARCHITECTURAL CAST STONE 3.3 CLEANING AND PROTECTION A. Repair chips and other surface damage noticeable when viewed in direct daylight at 10 feet. 1. Repair with matching touchup material provided by the manufacturer and in accordance with manufacturer's instructions. 2. Repair methods and results subject to Architect's approval. B. Clean cast stone components as work progresses; remove mortar fins and smears before tooling joints. C. Clean exposed cast stone after mortar is thoroughly set and cured. 1. Wet surfaces with water before applying cleaner. 2. Apply cleaner to cast stone in accordance with manufacturer s instructions. 3. Remove cleaner promptly by rinsing thoroughly with clear water. 4. Do not use acidic cleaners. D. Protect from splashing by mortar and other damage. END OF SECTION ARCHITECTURAL CAST STONE

13 PART 1 GENERAL 1.1 SECTION INCLUDES A. Concrete Masonry Units. B. Facing Brick. C. Reinforcement and Anchorage. D. Flashings. E. Accessories. 1.2 RELATED SECTIONS A. Section Concrete Reinforcement: Reinforcing steel for grouted masonry. B. Section Mortar and Masonry Grout. C. Section Masonry Restoration and Cleaning. D. Section Structural Steel: accessories for masonry construction. E. Section Metal Fabrications: Loose steel lintels and fabricated steel items. F. Section Rough Carpentry: Nailing strips built into masonry. G. Section Board and Batt Insulation: Insulation for cavity spaces. H. Section Sheet Metal Flashing and Trim: Rigid Through-wall masonry flashings. I. Section Joint Sealers: Backing rod and sealant at control and expansion joints. 1.3 REFERENCES A. Unless otherwise noted the most current issue of the reference shall be used. B. ACI 530/ASCE 5/TMS Building Code Requirements for Masonry Structures; American Concrete Institute International. C. ACI 530.1/ASCE 6/TMS Specification For Masonry Structures; American Concrete Institute International. D. ASTM A 82 - Standard Specification for Steel Wire, Plain, for Concrete Reinforcement. E. ASTM D Standard Specification for Flexible Cellular Materials Vinyl Chloride Polymers and Copolymers (Closed-Cell Foam) F. ASTM - D Standard Test Method for Rubber Property-Durometer Hardness G. ASTM D Standard Specification for Nonrigid Vinyl Chloride Polymer and Copolymer Molding and Extrusion Compounds H. ASTM A 615/A 615M - Standard Specification for Deformed and Plain Billet-Steel Bars for Concrete Reinforcement. I. ASTM A 641/A 641M - Standard Specification for Zinc-Coated (Galvanized) Carbon Steel Wire. J. ASTM A 653/A 653M - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process. K. ASTM A Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar. L. ASTM B Standard Specification for Copper Sheet and Strip for Building Construction. M. ASTM C 27 - Standard Classification of Fireclay and High-Alumina Refractory Brick. N. ASTM C 34 - Standard Specification for Structural Clay Load Bearing-Wall Tile. O. ASTM C 55 - Standard Specification for Concrete Brick; 2001a. P. ASTM C 56 - Standard Specification for Structural Clay Non-Load-Bearing Tile. Q. ASTM C 62 - Standard Specification for Building Brick (Solid Masonry Units Made From Clay or Shale). R. ASTM C 67 - Standard Test Methods for Sampling and Testing Brick and Structural Clay Tile. S. ASTM C 91 - Standard Specification for Masonry Cement. T. ASTM C Standard Specification for Ceramic Glazed Structural Clay Facing Tile, Facing Brick, and Solid Masonry Units. U. ASTM C Standard Specification for Nonloadbearing Concrete Masonry Units. V. ASTM C Standard Test Methods of Sampling and Testing Concrete Masonry Units and Related Units. W. ASTM C Standard Specification for Aggregate for Masonry Mortar

14 X. ASTM C Standard Specification for Portland Cement. Y. ASTM C Standard Specification for Hydrated Lime for Masonry Purposes. Z. ASTM C Standard Specification for Structural Clay Facing Tile. AA. ASTM C Standard Specification for Mortar for Unit Masonry. BB. ASTM C Standard Specification for Clay Flue Linings. CC. ASTM C Standard Specification for Aggregates for Masonry Grout. DD. ASTM C Standard Specification for Grout for Masonry. EE. FF. ASTM C Standard Specification for Structural Clay Nonloadbearing Screen Tile. ASTM C Standard Specification for Hollow Brick (Hollow Masonry Units Made From Clay or Shale). GG. ASTM C Standard Specification for Prefaced Concrete and Calcium Silicate Masonry Units. HH. ASTM C Standard Test Method for Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry. II. JJ. ASTM D Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing. ASTM E Standard Test Method for Water Penetration and Leakage Through Masonry 1.4 SUBMITTALS A. See Section Administrative Requirements, for submittal procedures. B. Product Data: Provide data for masonry units, fabricated wire reinforcement, mortar, and all flashings including accessories and primer. C. Samples; submit three of each for review: 1. Inside, outside corners self-adhering rubberized flashing end dams and outside corners inch x 6 inches wide x.015 inch thick stainless steel drip with hemmed edge inch x 1-5/8 inch wide x.015 inch thick stainless steel drip with hemmed edge. 4. Sealant inch long section of Termination bar. 6. Joint filler: full width x 6 inches long. 7. Preformed Control Joints: 6 inches long. 8. Weep/Cavity Vents: Manufacturer's full color range. 9. Anchors: submit each type of anchor required. 10. Facing Brick: submit bound units to illustrate color, texture, and extremes of color range and sizes. 11. Decorative Concrete Masonry units: submit bound units to illustrate color, texture, and extremes of color range. 12. Glazed Facing Brick: submit bound units to illustrate color, texture, and extremes of color range and sizes. 13. Structural Clay Facing Tile: submit bound units to illustrate color, texture, and extremes of color range and sizes. D. Manufacturer's Certificate: Certify that masonry units meet or exceed specified requirements. 1.5 QUALITY ASSURANCE A. Comply with provisions of ACI 530/ASCE 5/TMS 402 and ACI 530.1/ASCE 6/TMS 602, except where exceeded by requirements of the contract documents. 1. Maintain one copy of each document on project site. 1.6 MOCK-UP A. Construct a masonry wall as a mock-up panel sized 6 feet long by 4 feet high, which includes an exterior wall corner, flashing end dams and lap joints, window sill condition, cavity insulation with adhesive, mortar and accessories, all typical accessories, control joints with sealant, and structural backup. B. Mock-up will also be used to verify custom brick blend to match to the existing building. Refer to Article 2.2 below for further brick blend information

15 C. Locate where directed. D. Rebuild mock-up or non-conforming work within mock-up to meet intent of all specified components at the direction of the Architect. E. Mock up will be used as the standard of quality for all masonry installation on the project. F. All work shall conform to the specifications and quality established in the mock-up panel. G. Mock-up may not remain as part of the finished work. 1.7 PRE-INSTALLATION MEETING A. Convene minimum one week before starting work of this section. B. Construct Mock-up wall prior to pre-installation meeting. C. Attendance: 1. Contractor 2. Mason contractor. 3. Mason foreman. 4. Architect. 1.8 DELIVERY, STORAGE, AND HANDLING A. Deliver, handle, and store masonry units by means that will prevent mechanical damage and contamination by other materials. B. Handle and store ceramic glazed masonry units and pre-faced concrete block units in protective cartons or trays. Do not remove from protective packaging until ready for installation. C. Stack masonry units, anchors, ties and miscellaneous accessories on wood pallets or blocking above ground and protect from exposure to weather at all times. D. Cover brick, all masonry units and all reinforcing and accessories with covers that permit air circulation and prevent moisture infiltration. E. Any materials not protected at all times will be marked rejected and shall be removed from the site by the contractor within 24 hours. All transportation and replacement costs and delays in the schedule will be the sole responsibility of the contractor and at no additional cost to the owner. F. Clean all materials of dirt, mud, ice, rust, or other foreign substances immediately prior to using. 1.9 ENVIRONMENTAL REQUIREMENTS A. Cold Weather Requirements: Comply with ACI B. Maintain materials and surrounding air temperature to minimum 40 degrees F prior to, during, and 48 hours after completion of masonry work. C. Do not build on frozen work. D. Remove and replace all masonry work damaged by freezing. E. Hot Weather Requirements: Comply with ACI F. Maintain materials and surrounding air temperature to maximum 90 degrees F prior to, during, and 48 hours after completion of masonry work EXTRA MATERIALS A. See Section Product Requirements, for additional provisions. B. Provide 50 of each size, color, and type of glazed units for Owner's use in maintenance of project. PART 2 PRODUCTS 2.1 CONCRETE MASONRY UNITS A. Acceptable Manufacturers: 1. Best Block Co.; 2. Chicago Block and Brick;

16 3. Northfield Block; 4. Trenwyth Industries; 5. Valley Block & Supply Co., Inc., Elgin, IL B. Shapes: Provide shapes indicated and as follows, with exposed surfaces matching exposed faces of adjacent units unless otherwise indicated. 1. Provide special shapes for lintels, corners, jambs, sashes, movement joints, headers, bonding, and other special conditions. 2. Provide bullnose units for outside corners unless otherwise indicated. C. Load Bearing Concrete Masonry units: Comply with referenced standards and as follows: 1. Size: Unless otherwise noted provide standard units with nominal face dimensions of 16 x 8 inches and nominal depths as indicated on the drawings for specific locations. 2. Load-Bearing Units: ASTM C 90, medium weight. a. Hollow block with nominal 1 3/8 inches shell thickness unless indicated otherwise on contract drawings. b. Exposed faces: Manufacturer's standard color and texture where indicated. D. Non-Loadbearing Units: Comply with referenced standards and as follows: 1. Hollow block, as indicated unless otherwise noted. 2. Size: Unless otherwise noted provide standard units with nominal face dimensions of 16 x 8 inches and nominal depths as indicated on the drawings for specific locations. 3. Non-LoadBearing Units: ASTM C 129, medium weight. a. Hollow block with nominal 1 3/8 inches shell thickness unless indicated otherwise on contract drawings. b. Exposed faces: Manufacturer's standard color and texture where indicated. E. Pre-faced Concrete Masonry Units: Lightweight hollow concrete masonry units complying with ASTM C 90, with manufacturer's standard smooth resinous facing complying with ASTM C Products: Subject to compliance with requirements, provide the following: a. Astra-Glaze-SW+ Glazed Concrete Masonry Units as manufactured by Trenwyth Industries, or approved equal from other listed manufacturers. 2. Size: Unless otherwise noted provide standard units with nominal face dimensions of 16 x 8 inches and nominal depths as indicated on the drawings for specific locations. 3. Colors and Patterns: As selected by Architect from manufacturer's full range. 2.2 BRICK UNITS A. Manufacturers: 1. Hebron Brick Company; 2. Summit Brick Company, The Lakewood Brick Company; 3. Contact: Brent Schmitt, Bricks Inc., , , bschmitt@bricksinc.net. 4. Substitutions: See section Product requirements. B. General: Provide shapes indicated and as follows, with exposed surfaces matching finish and color of exposed faces of adjacent units: 1. For ends of sills and caps and for similar applications that would otherwise expose unfinished brick surfaces, provide units without cores or frogs and with exposed surfaces finished 2. Provide special shapes for applications where stretcher units cannot accommodate special conditions, including those at corners, movement joints, bond beams, sashes, and lintels. 3. Provide special shapes for applications requiring brick of size, form, color, and texture on exposed surfaces that cannot be produced by sawing. 4. Provide special shapes for applications where shapes produced by sawing would result in sawed surfaces being exposed to view. C. Facing Brick: ASTM C 216, Type FBS, Grade SW. 1. All face brick will provided under an allowance: Refer to Section Allowances. 2. Efflorescence: Provide brick that has been tested according to ASTM C 67 and is rated

17 "not effloresced." 3. Color and texture: a. Type 1 Stony Creek Elementary School Brick: Lakewood Brick Company Blend 1) 1/3 Light Buff Grain (1601) 2) 1/3 Medium Buff Grain (1602) 3) 1/3 Dark Buff Grain (1502) 4. Modular Size (Actual Dimensions): 3-5/8 inches wide by 2-1/4 inches high by 7-5/8 inches long. 5. Special shapes: Molded units as required by conditions indicated, unless standard units can be sawn without chipping glaze to produce equivalent effect. 6. Compressive strength: As indicated on drawings, measured in accordance with ASTM C MORTAR AND GROUT MATERIALS A. Mortar and grout: As specified in Section REINFORCEMENT AND ANCHORAGE A. Manufacturers of Joint Reinforcement and Anchors: 1. Dur-O-Wal: 2. Heckmann Building Products, Inc: 3. Hohmann & Barnard, Inc: 4. Masonry Reinforcing Corporation of America: 5. Substitutions: See Section Product Requirements. B. Reinforcing Steel: ASTM A 615/A 615M Grade 60 deformed billet bars. C. Vertical Structural Reinforcing Steel: type as specified in Section 03200; size as indicated on drawings; uncoated finish. D. Interior Single Wythe Joint Reinforcement: Contractor option of Truss or ladder type; ASTM A 82 steel wire, mill galvanized to ASTM A 641/A 641M, Class 3; inch side rods with inch cross rods; width as required to provide not more than 1 inch and not less than 1/2 inch of mortar coverage on each exposure. E. Interior Multiple Wythe Joint Reinforcement: 3 Wire Ladder or truss type; spaced 16 inches on center vertically ASTM A 82 steel wire, mill galvanized to ASTM A 641/A 641M, Class 3; inch side rods minimum with inch cross rods and pintles; width as required to provide not more than 1 inch and not less than 1/2 inch of mortar coverage on each exposure. F. Exterior Multiple Wythe Joint Reinforcement: 3 Wire Ladder type; spaced 16 inches on center vertically ASTM A 82 steel wire, hot dip galvanized after fabrication to ASTM A 153/153M, Class B; inch side rods minimum with inch cross rods and pintles; width as required to provide not more than 1 inch and not less than 1/2 inch of mortar coverage on each exposure. G. Exterior Adjustable Multiple Wythe Joint Reinforcement: Ladder type with adjustable ties or tabs spaced at 16 in on center ASTM A 82 steel wire, hot dip galvanized after fabrication to ASTM A 153/153M, Class B; inch side rods with inch cross rods and adjustable components of inch wire in compliance with ACI 530; width of components as required to provide not more than 1 inch and not less than 1/2 inch of mortar coverage from each masonry face. 1. Vertical adjustment: Not more than 2 inches. 2. Insulation Clips: Provide clips at tabs or ties designed to secure insulation against outer face of inner wythe of masonry. H. Exterior Cavity Wall Multiple Wythe reinforcement: Contractor choice of Exterior Multiple Wythe joint reinforcing or Exterior Adjustable Multiple Wythe Joint Reinforcing placed at 16 inches on center and in compliance with ACI Where a two piece (eye and pintle) adjustable system is used in the backup wythe, an additional ladder reinforcement is to be added to the face wythe one course above or below the 2 piece system and at 16 inches on center vertically and conforming to the characteristics of single wythe reinforcing

18 I. Flexible Anchors: 2-piece anchors that permit differential movement between masonry and building frame, sized to provide not more than 1 inch and not less than 1/2 inch of mortar coverage from masonry face. 1. Concrete frame: Dovetail anchors of bent steel strap, nominal 1 inch width x 0.06 in thick, with trapezoidal wire ties inch thick, hot dip galvanized to ASTM A 153/A 153M, Class B. 2. Steel frame: Crimped wire anchors for welding to frame, minimum 0.25 inch thick, with triangular wire ties inch thick, hot dip galvanized to ASTM A 153/A 153M, Class B. J. Wall Ties: Corrugated formed sheet metal, minimum 7/8 inches x 7 inches x inches thick, adjustable hot dip galvanized to ASTM A 153/A 153M, Class B. K. Masonry Veneer Anchors: 2-piece anchors that permit differential movement between masonry veneer and structural backup, hot dip galvanized to ASTM A 153/A 153M, Class B. 1. Anchor plates: Not less than inch thick, designed for fastening to structural backup through sheathing by two fasteners; provide design with legs that penetrate sheathing and insulation to provide positive anchorage. 2. Wire ties: Triangular shape, inch thick. 3. Vertical adjustment: Not less than 3-1/2 inches. L. Additional Anchors for Masonry to Structural Steel. 1. Vertical wide flange column - Flanges parallel to wall: a. STRAP-TYPE COLUMN & WALL ANCHOR with CORRUGATED COLUMN ANCHOR WALL TIE: 1/8 inch x 7 inches long x 2 inches wide x 1-1/2 inch fold back with a 5/8 inch wide x 1 inch deep slot starting 1 inch from end. Wall tie 22 gage x 1 inch (25.4 mm) wide x 24 inches (610 mm) long. All components hot dip galvanized to ASTM A 153/A 153M, Class B Vertical wide flange column - Flanges perpendicular to wall: a. TWISTED L-TYPE COLUMN & WALL ANCHOR (left and right) and 190-WT CORRUGATED COLUMN ANCHOR WALL TIE 1/8 inch x 1-1/4 inch wide x length with a 1-1/2 inch fold back with a twist to start length from inside of hook. Wall tie 22 gage x 1 inch wide x 24 inches long. All components shall be hot dip galvanized to ASTM A 153/A 153M, Class B FLASHINGS A. Metal Flashing and receivers: As specified in Section B. Flexible Flashing and accessories: 1. Acceptable Products and Manufacturers (Obtain all flashing materials and accessories from a single manufacturer): a. Illinois Products Corp: IPCO Flashing; b. Dur-O-Wal, Inc.: Dur-O-Barrier-44 Wall Flashing; c. Grace Construction Products: Perm-A-Barrier Wall Flashing; d. Hyload Inc.; e. Substitutions not permitted. 2. Wall Flashing: Consisting of minimum 26 mils of self-adhering rubberized asphalt waterproofing laminated to a 4 mil high density, cross-laminated polyethylene film. Provide a release paper to protect rubberized asphalt surface prior to installation. 3. Flashing End Dams: Preformed unit consisting of minimum 36 mils of self-adhering rubberized asphalt waterproofing laminated to a 4-mil high density, cross-laminated polyethylene film with 8-inch high legs (16 inch high legs if mortar net is used). Provide a release paper to protect rubberized asphalt surface prior to installation. 4. Inside and Outside Flashing Corners: Preformed unit consisting of minimum 36 mils of self-adhering rubberized asphalt waterproofing laminated to a 4-mil high density, cross laminated polyethylene film with 8-inch high legs (16 inch high legs if mortar net is used). Provide a release paper to protect rubberized asphalt prior to installation. 5. Level Change: Preformed unit consisting of minimum 36 mils of self-adhering rubberized asphalt waterproofing laminated to a 4-mil high density, cross laminated polyethylene film

19 with 8-inch high legs (16 inch high legs if mortar net is used). Provide a release paper to protect rubberized asphalt prior to installation. 6. Flashing Primer / Substrate cleaner: Liquid; brush or roller applied; by same manufacturer as flashing. 7. Metal Drip Edge: 2-inch wide x inch thick stainless steel strip with preformed drip and hemmed edge (1/4-inch drip at 45 degree angle) for all supported conditions. 8. Metal Drip edge preformed corners for 2-inch wide drip: same material as drip edge and as provided by drip edge manufacturer. 9. Metal Drip Edge: 6-inch wide x inch thick stainless steel strip with preformed drip and hemmed edge (1/4-inch drip at 45 degree angle) for wherever flashing is unsupported across air space. 10. Metal Drip edge preformed corners for 6-inch wide drip: same material as drip edge and as provided by drip edge manufacturer. 11. Sealant for bedding drip edge: One component gun grade polyurethane sealant as specified in Sealant for flashing edges corners and seams: mastic sealant as recommended by flashing Manufacturer and Compatible with flashing material. 13. Termination Bar 1/8 inches x 1 inch stainless steel with sealant ledge and predrilled pilot holes at 12 inches o.c a. Expansion anchors for termination bar: Material compatible with termination bar that will not cause galvanic action. 2.6 BOARD INSULATION A. Rigid Insulation for Cavity Walls: As specified in Section ACCESSORIES A. Rigid insulation adhesive: as specified in section B. Preformed Control Joints: Polyvinyl chloride material meeting ASTM D 2287 with a durometer hardness minimum of 80 when tested in conformance with ASTM D Provide with corner and tee accessories, fused joints. 1. Manufacturers: a. Illinois Products Corp.; b. Dur-O-Wal Inc.; c. Heckmann Building Products, Inc; d. Hohmann & Barnard, Inc; e. Substitutions: See Section Product Requirements. C. Frame installation contractor to provide bitumastic coating for all exterior door frames for the entire length of the frame prior to frame installation. D. Joint Filler: Closed cell polyvinyl chloride; meeting ASTM D 1667 Type VE-41; oversized 50 percent to joint width; self expanding; 3 and 6 inch wide x maximum lengths available. 1. Manufacturers: a. Illinois Products Corp.; b. Dur-O-Wal Inc.; c. Heckmann Building Products, Inc; d. Hohmann & Barnard, Inc; e. Substitutions: See Section Product Requirements. E. Weep/Cavity/Cell Vents: Molded PVC grilles, insect resistant. 1. Manufacturers: a. Illinois Products Corp.; b. Dur-O-Wal Inc.; c. Heckmann Building Products, Inc; d. Hohmann & Barnard, Inc; e. Substitutions: See Section Product Requirements. F. Cavity Drip/Insulation Retaining Ring: Molded PVC grilles, insect resistant. PVC clip-type retainer for rigid board insulation; attaches to loop wires on horizontal joint reinforcement