Sub Project

I had another purpose in mind with the street side bed renovation project. I have all this concrete in various areas of the yard that I want to get rid of. The city will not pick up concrete rubble. I had some hauled off last year and it was costly. So, I done me some thinking and that is where I got the idea to use this concrete rubble as the underlayment base to the paver projects. At the same time, I will use about 75% less crushed stone. I end up with 3-5" of concrete stone and 1" of crushed stone. So the minimum thickness of the base is 4". There were stones that were five or six inches thick. So, just speaking of the base, I think the outcome meets or exceeds my expectations. My main concern is how the base settles, and if it stays put.

This is it going in. I covered it right up with fine, screened soil as I went. I constructed a screed board using a 1x8 that spanned the curb and sidewalk. To that I tacked a 1x6 set at a depth of the brick, plus one inch, for the crushed stone back fill. I laid the stone to come as close to the bottom of the screed board as I could make it. I found that the smaller stones were much easier to handle.