Loading...
HomeMy WebLinkAbout033530 polished concrete floor finish.pdf Giant Eagle Market #6550 The Bridges, Carmel, Indiana Building Shell Bid & Permit DLA Project 2014040.00 August 12, 2014 POLISHED CONCRETE FLOOR FINISH 033530 - 1 SECTION 033530 - POLISHED CONCRETE FLOOR FINISH PART 1 - GENERAL 1.1 SUMMARY A. Section Includes: Polished concrete floor system. B. Related Sections: 1. Section 012200 – Unit Prices for maintenance and final cleaning of polished concrete. 2. Section 033000 – Cast-in-Place Concrete for mix design, placing, and curing of concrete. 1.2 REFERENCES A. ANSI B101.1- Test Method for Measuring Wet SCOF of Common Hard Surface Floor Materials. B. ASTM D 523- Standard Test Method for Specular Gloss. C. NFSA- National Floor Safety Institute; Test Method 101A; current edition. 1.3 PREINSTALLATION MEETINGS A. Schedule and convene a pre-installation meeting at the project site before start of installation of polished concrete floor system. Meeting to occur only after review and approval of required Sub-contractor submittals and completion of test panel mock-up, including specified grinding, polishing, joint filling, spall and crack repairs, and specified overall gloss values. B. Attendees: 1. Construction Representative. 2. Giant Eagle Store Planner. 3. Architect. 4. Contractor. 5. Polishing Subcontractor. C. Meeting agenda includes but is not limited to: Review of existing conditions, surface preparation, system installations, field quality control, protection, environmental requirements, coordination with other work, controls to limit damage from dust and field quality control methods and reporting. 1.4 ACTION SUBMITTALS A. Product Data, including, but not limited the following: Giant Eagle Market #6550 The Bridges, Carmel, Indiana Building Shell Bid & Permit DLA Project 2014040.00 August 12, 2014 POLISHED CONCRETE FLOOR FINISH 033530 - 2 1. Product data sheets: a. Liquid reactive surface densifier. b. Joint filler. c. Crack and spall repair product. d. Grout coat, pin hole and small defect surface treatment. B. Polished Concrete Floor Procedure Submittal: Prior to installing mockups, Contractor shall submit a Polished Concrete Floor Procedure, including but not limited to the following descriptions: 1. Procedures for opening slab surface to expose aggregate and achieve a uniform final polish. 2. Procedures for polishing, burnishing, and densifying; that achieve gloss and durability requirements indicated, identify all steps and products. 3. Procedures for repairing cracks, spalls and other imperfections to achieve a uniform appearance, identify all steps and products. 4. Procedures for filling control and expansion joints, identify all steps and products, including methods for cleaning and preparing joints to ensure adhesion of joint filler with sides of joints. 5. Procedures for protecting adjacent surfaces from damage during floor polishing process. 6. Procedures for protecting polished concrete flooring until date of Substantial Completion. C. LEED Submittals: 1. Product Certificates for Credit MR 5.1 and Credit MR 5.2: For products and materials required to comply with requirements for regional materials, certificates indicating location of material manufacturer and point of extraction, harvest, or recovery for each raw material. Include statement indicating distance to Project, cost for each regional material, and fraction by weight that is considered regional. 2. Product Data for Credit EQ 4.1: For adhesives and sealants, documentation including printed statement of VOC content. 3. Product Data for Credit EQ 4.1: For solvent cements and adhesive primers, documentation including printed statement of VOC content. 4. Product Data for Credit EQ 4.2: For paints and coatings, documentation including printed statement of VOC content. 1.5 INFORMATIONAL SUBMITTALS A. Installer’s Qualifications. B. Applicator’s Qualifications. C. Source quality-control reports. D. Field quality-control reports. E. Sample warranty. 1.6 QUALITY ASSURANCE SUBMITTALS Giant Eagle Market #6550 The Bridges, Carmel, Indiana Building Shell Bid & Permit DLA Project 2014040.00 August 12, 2014 POLISHED CONCRETE FLOOR FINISH 033530 - 3 A. Installer's Qualifications: 1. Provide list of 5 projects performed with last three years of similar type, size and complexity. 1.7 CLOSEOUT SUBMITTALS A. Maintenance data. 1.8 QUALITY ASSURANCE A. Installer Qualifications: An authorized representative who is trained and approved by manufacturer. B. Regulatory Requirements: 1. Accessibility Requirements: Comply with applicable requirements of the Americans with Disabilities Act Accessibility Guidelines (ADAAGs) for Buildings and Facilities; Final Guidelines, revisions, and updates for static coefficient of friction for walkway surfaces. 2. Environmental Requirements: Comply with current Federal and local toxicity and air quality regulations and with Federal requirements on content of lead, mercury, and other heavy metals. Do not use solvents in floor polish products that contribute to air pollution or impact food quality. C. Mock-Ups: 1. Provide polished concrete floor finish mock-up a minimum of 144 square feet (12 feet by 12 feet), illustrating completed finish, all specified liquid surface treatments, repair materials, control joints and joint fillers, patterned concrete and specified gloss levels. 2. Locate mock-up where directed by Construction Representative. Mock-ups shall not be located in any sales areas. 3. Perform mock-ups until accepted by Construction Representative, without additional cost to Owner. 4. Mock-ups are to be executed using same equipment and products as will be used for the Work. 5. Accepted mock-up will serve as standard to judge quality and workmanship of completed polished concrete floor finish. 6. Do not commence floor polishing prior to approval of mock-up. 7. Maintain mock-ups undisturbed until date of Substantial Completion. 1.9 PROJECT CONDITIONS A. Sequence application of concrete polishing after completion of other construction activities that would be damaging to polished finish. B. Close areas to traffic during and after floor application for time period required in writing by manufacturer. Giant Eagle Market #6550 The Bridges, Carmel, Indiana Building Shell Bid & Permit DLA Project 2014040.00 August 12, 2014 POLISHED CONCRETE FLOOR FINISH 033530 - 4 PART 2 - PRODUCTS 2.1 POLISHED CONCRETE FLOORING A. Provide polished concrete floor system in accordance with approved manufacturer's procedures at locations indicated on the Drawings. B. For field application within the weatherproof barrier of the building envelope use paints, coatings, sealants and adhesives that comply with the VOC levels established in Section 018113 Sustainable Design requirements. Document products and quantities used (in ounces, liters or gallons). C. Use flooring systems and materials that comply with the VOC and Floorscope levels established in Section 018113 Sustainable Design requirements. D. Aggregate Exposure: Mottled salt-and-pepper fine aggregate exposure, match control sample as acceptable to Construction Representative and Architect. E. Specular Gloss/Reflectance Criteria: 1. ASTM D 523 – Perform polishing and burnishing work necessary to produce a Specified Overall Gloss Value (SOGV) greater than or equal to 40. Minimum Local Gloss Value (MLGV) greater than or equal to 30 as measured using a Horiba IG-320 60 Degree Gloss Checker. a. Gloss shall be considered as a quantitative value that expresses the degree of reflection when light hits the concrete floor surface. Gloss measurements will be taken independent of ambient lighting and will be taken within a sealed measurement window located beneath the test unit. b. Collect 12 readings minimum, throw out low and high measurements and average remaining measurements. Average shall exceed SOGV. No single measurement shall be less than MLGV. 2. Test Specular Gloss/Reflectance at Turnover, in locations throughout the project area designated by the Construction Representative. F. Durability Criteria: 1. Abrasion Resistance: ASTM C779 – Up to 400% increase in abrasion resistance. 2. Impact Strength: ASTM C805 – Up to 21% increase impact strength. 3. Ultra Violet Light and Water Spray: ASTM G23-81 – No adverse effect to ultra violet and water spray. G. Slip Resistance Criteria: 1. Static Coefficient of Friction ANSI B101.1 – Meet or exceed the following: a. Flat Areas: 0.60 Wet. b. Ramp Areas: 0.80 Wet. 2. Test Slip Resistance at Turnover, in locations throughout the project area designated by the Construction Representative. 2.2 MATERIALS Giant Eagle Market #6550 The Bridges, Carmel, Indiana Building Shell Bid & Permit DLA Project 2014040.00 August 12, 2014 POLISHED CONCRETE FLOOR FINISH 033530 - 5 A. Penetrating Hardener/Densifier: Clear liquid reactive lithium-silicate based, as submitted by Contractor and approved by Architect. B. Joint Filler: As submitted by Contractor and approved by Architect. C. Crack and Spall Repair Product: As submitted by Contractor and approved by Architect. D. Grout Coat: As submitted by Contractor and approved by Architect. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine floor substrates to receive polished concrete floor system. B. Do not begin surface preparation or installation until unsatisfactory conditions are corrected and approved. Proceeding with the Work indicates installer’s acceptance of floor substrates. C. Verify the Following: 1. Floor Finish: Wide channel floated, smooth, pan, 3 passes with plastic blade, finished floor from edge to edge, with no rough areas. 2. Floor and Joints: a. Free of debris and excessive dirt, dust, clay, and mud. b. Dry. 3. Concrete Curing: Minimum 7 days disposable wet curing blankets or removable curing compound applied. Concrete shall be cured for 28 days minimum before start of grinding process, unless Polished Flooring Contractor agrees in writing to commence polishing in less than 28 days. 4. Concrete Adjacent to Floor Penetrations: Troweled flat and level with surrounding concrete. 5. Patterned Concrete Surface: Flat, level, and smooth ready for polishing. 3.2 SURFACE PREPARATION A. Protection: Protect surrounding areas and adjacent surfaces from the following: 1. Dust from grinding and polishing. 2. Contact with overspray of densifier. 3. Contact with joint filler, crack or spall repair materials. B. Clean Surfaces: Remove dirt, dust, debris, oil, grease, curing agents, bond breakers, paint, coatings, and other surface contaminants which could adversely affect installation of polished concrete floor system. C. Install joint filler in accordance with manufacturer’s written instructions, unless joints are to be filled after grinding and polishing operations. Giant Eagle Market #6550 The Bridges, Carmel, Indiana Building Shell Bid & Permit DLA Project 2014040.00 August 12, 2014 POLISHED CONCRETE FLOOR FINISH 033530 - 6 3.3 POLISHED CONCRETE FLOOR SYSTEM A. Contractor shall polish and apply densifier, crack and spall repairs, and grout coats in accordance with approved Polished Concrete Floor Procedure Submittal, and shall achieve specified appearance and durability requirements. 3.4 FIELD QUALITY CONTROL A. Inspect completed polished concrete floor system with the Aetos Project Manager. B. Review procedures to correct unacceptable areas of completed polished concrete floor system. 3.5 PROTECTION A. During 28 day curing period, provide heavy-duty, non-staining, reusable protection boards equal to Ram-Board, loose-laid and overlapped at edges, for areas where construction by other trades will occur. Do not tape protection boards to the floor or to each other. B. The following shall be prohibited on unprotected floor, and strictly enforced: 1. Storage of construction materials, equipment, and tools. 2. Parking of vehicles. 3. Tire embedments (rocks, nails, screws, etc.) that will scratch or pit slab surface. 4. Pipe cutting using pipe cutting machinery. 5. Temporary placement and storage of steel members. 6. Acids and acidic detergents. C. Where construction equipment must be used, diaper components that might drip oil, hydraulic fluid, or other liquids. D. Cover concrete floors with drop cloths or use breathable drop cloths during painting. If paint is spilled on concrete floor, remove paint immediately. E. Protect slab surface from standing moisture for 72 hours to prevent re-emulsification of surface treatment prior to curing. F. Immediately remove mortar splatter, spilled liquids, oil, grease, paint, coatings, and other surface contaminants which could adversely affect completed polished concrete floor system. G. Protect completed polished concrete floor system from damage until Substantial Completion. H. Repair damaged areas of completed polished concrete floor system to satisfaction of Aetos Project Manager. END OF SECTION 033530