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INDIAN RIVER COUNTY JULY 25, 2014 <br />INTERGENERATIONAL RECREATION CENTER 100% CONSTRUCTION DOCUMENTS <br />a. Failure to provide a product that meets or exceeds these <br />requirements will result in all subsequent testing and slab, tilt -up <br />wall and cast -in-place remediation or replacement costs being <br />borne by the contractor. <br />2. A representative or agent of the moisture vapor reduction admixture (MVRA) <br />manufacturer must be present at the jobsite during placement of all MVRA <br />treated concrete. <br />a. Do not proceed without this representative being present. <br />b. A minimum of one business day notification is required. <br />3. Field testing technician shall, at the expense of the MVRA Manufacturer, procure <br />at least one 4 inch (102 mm) cylinder from every day of placement of MVRA <br />dosed concrete for the purpose of subsequent hydraulic conductivity/coefficient <br />of permeability testing. <br />4. All cylinders shall be independently lab tested in accordance with ASTM D 5084 <br />at the expense of the MVRA manufacturer. <br />5. Tilt -up wall panels are not to be erected into place until the cylinder samples <br />have been tested for ASTM D5084 and approved by the MVRA Manufacturer <br />according to specified limits in Section 6.a. <br />6. Test results must conform to specified limits. <br />a. Should any cylinder from any day of placement deliver results in excess <br />of 6.0 E-08 cm/sec, the concrete moisture vapor reduction admixture <br />manufacturer shall procure, at their expense, a core (or cores) from that <br />day of placement. This core (cores) shall be sent to an independent <br />laboratory for hydraulic conductivity (coefficient or permeability) per <br />ASTM D 5084. <br />b. Should any core deliver results in excess of 6.0 E-08 cm/sec per ASTM <br />D 5084, the concrete moisture vapor reduction admixture manufacturer <br />shall provide, at their expense, a topical moisture mitigation system for <br />all slab areas not meeting the stated limit. <br />c. Should any core deliver results in excess of 6.0 E-08 cm/sec per ASTM <br />D 5084, in tilt -wall or cast -in-place structural system, that component will <br />not be installed and is to be discarded. <br />7. Proceeding with placement of concrete dosed with the MVRA without the <br />required representation will result in the contractor bearing the cost to core and <br />ship appropriate material for testing per ASTM D 5084. <br />3.4 MVRA manufacturer will notify the architect, in writing, where dosed concrete failed to meet <br />ASTM D5084 testing requirements. REPAIRS <br />A. Make repairs to slab in accordance with Division 03 Section "Cast -in -Place Concrete" and <br />as recommended by concrete moisture vapor reduction admixture manufacturer. <br />END OF SECTION 030510 <br />HIGH PERFORMANCE CONCRETE MOISTURE 030510- 6 <br />VAPOR REDUCING ADMIXTURE <br />