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THE CITY OF SUNNY ISLES BEACH <br />PROJECT NO. 21-1011 <br />BUILDING DEPARTMENT RELOCATION TO ANNEX <br /> <br />Project No. 21-1011 November 2024 033100 Structure Concrete-10 <br /> <br />C. Cut ends of galvanized rebars shall be coated with a zinc rich formulation <br />equivalent to factory coating. <br /> <br /> <br />D. Cut ends of epoxy coated rebars shall be coated with epoxy material <br />equivalent to factory coating. <br /> <br />E. Damage to rebar coating as a result of bending shall be repaired with <br />equivalent coating. <br /> <br />3.3 VAPOR RETARDERS <br /> <br />A. Vapor retarders shall be provided where slabs will receive vapor-sensitive floor <br />coverings or in humidity-controlled areas or as indicated on drawings. <br /> <br />1. Install vapor retarders directly under concrete slab-on-ground at areas <br />with vapor-sensitive floor coverings and where subgrade granular <br />material is subject to future moisture infiltration. <br /> <br />2. Where subgrade material is dry, and will not be subject to future moisture <br />infiltration and where humidity will be controlled, place the vapor retarder <br />beneath the dry granular material and the concrete slab-on-ground directly <br />on the dry granular material. <br /> <br />B. Installation of Water Vapor Retarders shall be in accordance with ASTM E1643. <br /> <br />C. Edges shall be lapped six (6) inches and sealed. <br /> <br />D. Contractor is responsible for maintaining conditions to provide a dry subgrade <br />material where the slab is cast on top of granular material. <br />E. Contractor is responsible for maintaining a puncture free vapor retarder. Any <br />punctures shall be sealed appropriately to prevent vapor transmission. <br /> <br />F. Do not disturb vapor retarder while placing reinforcement. <br /> <br />3.4 PLACING CONCRETE <br /> <br />A. Notify Engineer/Architect a minimum of 48 hours prior to commencement of <br />concreting operations. <br /> <br />B. Failure to notify Engineer/Architect may result in rejection of concrete placed <br />without observation. <br /> <br />C. Place concrete in accordance with ACI 301. <br /> <br />D. Place pumped concrete in accordance with ACI 304.2R. Line coating mix to initiate <br />pumping shall not be used in pour but shall be wasted. <br /> <br />E. Ensure reinforcement and embedded items are not disturbed during concrete <br />placement. <br /> <br />F. Concrete with excessive honeycomb or embedded debris shall be rejected and