There are four basic steps you need to take to schedule your HiSET exam. 1  View the requirements for taking the HiSET exam in your state or jurisdiction to make sure you're eligible to take the exam. 2  Find a test center near you. 3  Set up your My HiSET Account. 4  Schedule your appointment. How you schedule depends on where you're taking the exam. Some locations allow scheduling only through test centers, while others also allow you to: schedule online through your HiSET account; call ETS Customer Service at 1-855-MyHiSET (1-855-694-4738) To find out how to schedule your appointment, see your State Requirements.
Concrete does not dry, it cures. A 28 day cure is generally specified. It is desirable to keep the surface of the concrete wet or damp after it initially sets up and prevent dryout which ends the curing process and limits final strength.
Unless the mix has retarder (or some cement replacement material) in it, it will generally be hard enough to walk on in less than 24 hours. Mixes are usually specified with a design strength - the compressive strength that the concrete will reach in a period of time, typically 28 days.