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INDIAN RIVER COUNTY JULY 25, 2014 <br />INTERGENERATIONAL RECREATION CENTER 100% CONSTRUCTION DOCUMENTS <br />2.2 MATERIALS <br />A. Concrete moisture vapor reduction admixture (MVRA) for all interior slab (on ground and <br />elevated) and structural roof deck construction shall be a non-toxic, liquid admixture that <br />is free of all volatile organic compounds (VOC). It shall be specifically designed to have a <br />natural chemical reaction with pre-existing elements inside the concrete to eliminate the <br />route of moisture vapor emission through the slab by restricting the integral capillary <br />system. Chemical reaction shall form a permanent barrier (capillary break) that is integral <br />to the concrete, insoluble, and irremovable. <br />1. Hydraulic conductivity: Project specific maximum of 6.0 E-8 cm/s per <br />ASTM D5084 <br />2. Toxicity: None <br />3. Odor: None <br />4. Flammability: None <br />5. VOC levels: zero <br />6. Solvent: water <br />7. Freeze Temp: 32 degrees Fahrenheit (0° C)(store above 36° F <br />(2.3° C)) <br />8. Acid resistance: Excellent <br />9. Hazardous vapors: None <br />10. Installation: All concrete <br />11. Capillary break: Calcium Silicate Hydrate <br />12. pH: 11.3 <br />13. weight: 10.3 lbs/gal (net) <br />14. Integral biocide to inhibit growth of mold and bacteria <br />2.3 RELATED MATERIALS <br />A. Sheet Vapor Retarder: ASTM E 1745 compliant material, with a maximum permeance of <br />0.1 US Perms and a minimum thickness of 0.01". Include manufacturer's recommended <br />adhesive or pressure -sensitive tape. <br />1. Products: Subject to compliance with requirements, available products that may <br />be incorporated into the Work may be manufactured by, but are not limited to, the <br />following: <br />a. Insulation Solutions, Inc. <br />b. Meadows, W. R., Inc. <br />c. Raven Industries Inc. <br />d. Reef Industries, Inc. <br />2. It is the responsibility of the vapor retarder manufacturer to show compliance with <br />the most current version of ASTM E1745. <br />PART 3 - EXECUTION <br />3.1 INSTALLATION <br />A. Comply with the requirements of Division 03 Cast -in -Place Concrete, or other appropriate <br />section, for concrete mixing, placing and curing. <br />B. Sheet Vapor Retarders: Place, protect, and repair sheet vapor retarder according to <br />ASTM E 1643, ASTM F710, ACI 302.2R-06 and manufacturer's written instructions. <br />C. Add MVRA in accordance with manufacturer's printed data sheet instructions: For mix <br />designs ranging from 0.42 to 0.52 w/cm, dose at 14 ounces per 100 pounds (414m1/45kg) <br />of total cementitious materials. Remove an equal amount of water from the mix. Add <br />separately from other admixtures at the tail end of the load. Mk designs below 0.42 and <br />above 0.52 may require adjustment and consultation with MVRA manufacturer is required <br />prior to their use. <br />HIGH PERFORMANCE CONCRETE MOISTURE 030510- 4 <br />VAPOR REDUCING ADMIXTURE <br />