But she didnât stop there on Sunday. In an attempt to upstage her competition, and perhaps make a run at United States sensation Simone Biles â who is just two years older than Chusovitinaâs 17-year-old son â Chusovitina attempted the Produnova, which many have deemed âthe vault of death.â.
How long does it take for concrete to dry? A: On average, it takes concrete roughly 3 days to dry or cure enough to handle pedestrian traffic, while vehicle traffic should stay clear of curing concrete for approximately 7 days. Despite this initial stage, concrete continues to harden for years, becoming stronger in the process. Continue Reading.
The 28 days is not really how long it takes concrete to cure. Concrete continues to gain strength for years as long as some type of moisture (even humidity) is available. The 28 days is the standard time at which they test samples in the a to determine if the mix meets the specifications.