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.
Add another 30 minutes or more for off-load-ing, and the concrete may be already setting during the pour, which will cause many problems. It may be advisable to keep additional packets of plasticizer or set-retarder on site for emergencies, especially in the hottest conditions.