At an age of 1 day the 120Â°F concrete was strongest and the 25Â°F concrete was weakest. By 7 days the high-temperature cured concretes had no more strength than the 73Â° concrete or even less. By the age of 28 days the high-temperature concretes were weaker than the 73Â° concrete. From 28 days to 1 year the 55Â° concrete was considerably stronger than the 73Â° concrete. From 90 days onward the 40Â° concrete was stronger than the 73Â° concrete and the 25Â° concrete was slightly stronger than the 73Â° concrete.
Panama City, Florida. Not to be confused with Panama City, Panama or Panama City Beach, Florida. Panama City is a city and the county seat of Bay County, Florida, United States. Located along U.S. Route 98, it is the largest city between Tallahassee and Pensacola. It is the more populated of two principal cities of the Panama City-Lynn Haven, Florida Metropolitan Statistical Area.
Panama City (Spanish: ciudad de Panama) panamÃ¡ is the capital and largest city of The republic Of. panama