Since you’re doing this job w/o any ‘experience’, I suggest you visit the book store and look for books labeled something like: Sidewalks and Patios, or Patios and Porches, or Walkways and Driveways. This is the type of book you want. I don’t know of any good WEB sites on this (but I’m sure there are), but take some of the money you’re saving in doing this job yourself by investing in a GOOD book or 2. It’s money well spent!!!
My best to ya and hope this helps.
Jay J -Moderator
PS: Time/Life and Reader’s Digest, both, make DIY books. The Home Centers have them too, and they have SPECIALTY books too (like Plumbing, et. al. …)