Headache, Sleepiness, Irritability, Lethargy, Constipation, Depression, Muscle Pain/Stiffness, Lack of Concentration, Flu-like symptoms and insomnia are top ten caffeine withdrawal symptoms. Written Apr 8, 2013 Â· View Upvotes.
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.ind, 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.
Usually concrete will set up within a few hours, and will most likely be strong enough to walk on in a day or two. Concrete takes about 30 days to fully cure though and get to maximum strength.