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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?
Also, the concrete will need to be reinforced so that it has a minimum strength of 2500 psi at 28 days. Yes, this is the standard curing time for a foundation or slab. Some acceleration agents can be added to speed things up, however. Extra reinforcement should be in the form of re-bar with wire or fiber mesh.