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4.How long does it take for concrete to dry enough to walk on? 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. 6. Should I put cure or water on the concrete? Yes, after the initial 12 hours applying cure of water for 5 days every morning and night is recommended. 7. Do I need to use base rock for my subgrade?
The contact between the footers and walls will adhere better when the walls are poured after a few days. There's really no advantage in waiting 28 days for the footers to cure. The curing process with concrete goes on for years to the point where, when fully cured, it starts on the road to breaking down.