I am new here but I need some help I have just spent a whole backbraking day on our concrete drive way
First we have levaled off the groung and gone down about 12 inches
Then we have put bricks and bits of paving slab on the ground a bit like bad crazy paving
Then we intend to put 2ish in of scalpings on top to create a good base and fill gaps in the crazy paving
Then use a wacker plate to firm it all up and place 4ish inches of concrete on top
When the father in law came up he said "you don't want to do it like that" and told us that all the hard core needs to be in tiny pieces?
Then the scalpings then the chippings then concrete
The F-i-L is right. The bricks and old flags really should be broken up as small as possible, certainly into pieces no larger than 50mm. If you were using 100-150mm of "scalpings" (I really don't like that term), then breaking the rubble into 100-150mm chunks would be OK, but as you're planning on using what we'd call a "blinding", that is, a thin covering of crushed aggregate, then the rubble needs to be broken up finer.
and told us that all the hard core needs to be in tiny pieces?