Using 2/6mm limestone on a non-permeable block paved drive?

[Miocene]

Quick advice needed if possible... when talking to the chap currently working on our drive he said he will be using 2/6mm limestone as a base for our block paving rather than sand.

Having looked this up this is what is used when you're using permeable paving. We're using standard paving, so find it a little strange that he's not using a normal sand bed.

Does anyone have any idea / view if this would be suitable!?

Edited by Miocene on Thursday 5th May 13:58

[Miocene]

All sorted from the 'doing the right thing' approach that you guys are getting at. He's been using it for a while instead of sand apparently and thinks its better... but whether that just means cheaper in his eyes I don't know.