Final setting time of cement...?
First is the 1st 24 hrs which then you can walk on the slab. 2nd is the next 7/8 days after which you could drive across and the final setting time is the next 30 days for the slab to cure. GL
Cement should set up hard enough to walk on in about 8-12 hours. To cure properly, it must be kept wet, and will reach 80% of its maximum strength in 3 days. To make really strong cement, keep it wet for at least 3 weeks. Do not let it dry out at all in that time. Cement, kept continuously wet, will continue to harden for 20 years.
