Emma Morano, 117 years old, blows candles in the day of her birthday in Verbania, Italy, Tuesday, Nov. 29, 2016. At 117 years of age, Emma is now the oldest person in the world and is believed to be the last surviving person in the world who was born in the 1800s. Antonio Calanni, AP. Fullscreen.
Wind, humidity, and sunlight are all factors in how long it takes for concrete to cure, walking, normally about 1 to 2 days. 5. How long does it take for concrete to cure enough to drive on? Again, wind, humidity, and sunlight are all factors but the standard is about 5 to 7 days. Start with a minimum of 2 people for a 1 cubic yard pour. 2  Add one person for each additional cubic yard of concrete. 3  If you are using wheelbarrows to move the concrete form the truck to the forms, add an additional person.
After it's poured, concrete will dry to the the touch after six hours. As long as the concrete has been allowed to dry on an even plane and there's no grade or slope to the driveway, this time will hold true. If the size or slant of the terrain is irregular, allow more time just to be safe. Allow eight hours to two days before walking on the newly poured concrete.