specifications - FAACO - Federal Aviation Administration Contract ...

ACI 305RACI 306RACI 308ACI 309ACI 318Hot Weather ConcretingCold Weather ConcretingStandard Practice for Curing ConcreteGuide for Consolidation of ConcreteBuilding Code Requirements for Reinforced ConcreteFTWIC-2235June, 20091.06 DELIVERY, HANDLING AND STORAGE:A. Deliver cement in bulk or bags which are plainly marked with the brand andmanufacturer's name. Immediately upon receipt, store cement in a dry, weather-tight andproperly ventilated structure, which excludes moisture. Storage facilities shall permiteasy access for inspection and identification. Cement not stored in accordance with therequirements shall not be used.B. Sufficient cement shall be in storage to complete placement of concrete started. In orderthat cement may not become unduly aged after delivery, maintain records of deliverydates. Use cement which has been stored at the site for 60 days or more before usingcement of lesser age. No cement shall be used which is lumped, caked, stored more than90 days, or whose temperature exceeds 170 degrees F.C. Handle and store concrete aggregate in a manner which prevents the admixture of foreignmaterials. If the aggregates are stored on the ground, grubb the sites for the stockpiles,clear weeds and grass and level. Do not disturb the bottom layer of aggregate or usewithout recleaning.D. Store different types and gradations of aggregates in a manner which preventsintermixing. Handle materials in stockpiles in a manner which prevents segregation ofmaterials in the pier. Build in layers not over 3' in depth. Should segregation occur,remix the aggregates to conform with the grading requirements. Stockpile fineaggregates at least twenty-four (24) hours before mixing to reduce the free moisturecontent.1.07 JOB CONDITIONS:A. GENERAL:1. The concrete shall be mixed in quantities required for immediate use. Anyconcrete which is not in place within the time limits specified shall not be used.Concrete shall not be re-tempered.2. Concrete shall not be placed if impending weather conditions would impair thequality of the finished work.B. CONCRETE TEMPERATURE:No concrete shall be placed when the temperature of the concrete to be placed is greaterthan 90 degrees F or less than 50 degrees F. The temperature of the concrete to be03300-9