I am installing concrete pavers on a 6" base of compacted gravel with 1-2inch sand on top. The problem is that i need the top of the pavers to end up flush with an adjacent concrete sidewalk. I am setting the pavers over uncompacted sand about 1/2 inch above the sidewalk and will use a plate compactor to settle them (i hope) down to the sidewalk. So i have two questions:
1. How much will concrete pavers (4x8x2 3/8) settle when you run a plate compactor over them ?, and
2. If they dont settle enough will i be able to pry them out, remove some sand and re-set or will they be locked in too tightly to move (does it matter if i put polymeric joint sand into the joins before i compact them) ?
thanks for any help !