How to prepare for Stamped concrete pad?
 

OK this one is a personal project I'm ripping up a 1500 SQF section of my
yard to put in some landscaping and a stamped concrete patio and deck. I
live in Southern Ontario so frost is an issue. Once the soil is removed what
should I do to prepare for the concrete? Should I pack the soil? add gravel?
add Chemstone? What's the proper procedure?