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.
Confidence votes 142. Typical concrete takes 28 days (4 weeks) to cure. Prior to the 28 days concrete still has moisture in it that weakens the strength of the concrete. If you seal it prior to 28 days there is a chance you will be sealing in some of that moisture and hence weakening the integrity of the concrete.f you poured your concrete in the middle of dry summer then 14 days should be the minimum amount of time you should wait. After you seal the concrete (depends on conditions and sealer product) you will typically want to give the sealer 1 day prior to walking on it and 48 hours after application before driving on it.