Design a concrete mix for the following conditions and constraints using the ACImethod.Design EnvironmentBridge pier exposed to freezing and subjected to deicing chemicalsSpecified Design Strength = 3,500 psiMinimum dimension = 12 inchesMinimum space between rebars = 2 inchesMinimum cover over rebars = 1.5 inchesOnly air entrainer is allowedAvailable MaterialsCement – Type V due to exposureAir Entrainer – Manufacterer specification 0.1 fl oz/1% air/100 lb of cement)Coarse Aggregate1 inch maximum size, river gravel (round)Bulk oven dry specific gravity = 2.621, Absrption = 0.4%Oven-dry roddeed density = 105 pcfMoisture content = 1.5%Fine AggregateNatural sandBulk oven-dry specific gravity = 2.572, Absorption = 0.8%Moisture content = 4%Fineness modulus = 2.6
