What are the curing requirements for concrete pavement in New York?

"Immediately after finishing, and not more than 30 minutes after concrete placement, apply a clear membrane curing compound that includes a fugitive dye at a min. rate of 1 gallon per 150 square feet. Do not apply curing compound in the rain. If rain damages the curing compound before it sets, reapply curing compound promptly after the concrete surface dries." [2] "Cure all driveways and sidewalks at driveways for a minimum of 3 days prior to opening to vehicle traffic." [2] "502 - 3.11 Curing. Apply curing compound no later than 5 minutes after texturing. The Engineer may stop paving if curing lags beyond the time limits noted. Cure concrete until it is eligible to open to construction traffic as per Table 502 - 3 , Pavement Opening Requirements , based on the Contractor - submitted mix design and the trial batch evaluation." [4] "A. White Pigmented Membrane Curing Compound. Cure concrete with white pigmented membrane curing compound. Mix the curing compound before each use and continuously agitate during use. Uniformly coat all exposed surfaces (including slipformed edges and formed edges immediately after form removal) at a minimum rate of 150 sf/gal such that the coated surfaces are completely white. Check the application rate after every paving day, including exposed vertical slab faces in the calculations. Apply the curing compound in 2 direction passes with no longer than 15 minutes between passes. Immediately reapply curing compound to any damaged coating areas . During curing equipment breakdown, cure the pavement in accordance with §502 - 3.11B, Curing Covers . Do not apply curing compound in the rain. If rain damages the curing compound before it sets, reapply curing compound after the pavement surface dries." [4] "All structural concrete shall be cured for a minimum of seven curing days unless otherwise stated. The curing period shall begin only after all curing procedures and practices for a given placement are established. A curing day is defined as any day during which the ambient air temperature at the concrete surface is 45°F or higher for the entire day." [6] "Conditions may occur which prevent an entire day from qualifying as a curing day, but do not prevent portions of that day from reaching temperatures that qualify as curing temperatures. If these conditions occur and with the Engineer's approval, the Contractor may aggregate curing hours. A curing hour is defined as any hour during which the curing temperature remains at, or above 45°F. An aggregation of 24 curing hours will be credited as one curing day. Aggregations of less than 24 curing hours will not be credited." [6] "Curing shall commence on all exposed surfaces no later than 30 minutes after completion of finishing. Finishing and curing operations shall progress with concrete placement. Curing covers shall be placed as soon after concrete finishing as the Engineer determines will not cause damage to the concrete surface. However, under no circumstances shall the curing be delayed beyond 30 minutes of the completion of finishing." [6]

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