Concrete pool deck repair?

I cut 3 16"x16" holes in my concrete pool deck to repair plumbing leaks. I've now refilled the holes with soil/gravel/stonedust to receive cement pavers. There are 2 areas of damage 3 1/2"deep by 3" long by 2" wide. Any particular cement or mix for this repair? I went through the Quikrete site but found no exact answer. In addition,should I caulk the paver edges or cement them? Caulk type? I'd like to have easier access if I ever develop leaks again. Thanks.