Paving slabs with hard core

[mangosRus]

Hi guys

I am in the midst of a garage build, and I know that for hard core one should use rubble that is around >= 20mm. What about concrete paving slabs? I've got quite a lot intact ones (350mm x 350mm x 10mm) sitting around, and it'll be a bit of a waste if I have to dispose of them. I was thinking of using them intact along with hardcore to fill in the gaps to make a nice flat base.

Yay or nay?

 

[John D v2.0]

You'd have to break them up quite a bit first because you need the hardcore to all lock together without big voids. I tried that with some bricks from a wall and quickly changed my mind due to the effort.

 

[mangosRus]

Hmm, did you try spacing the bricks out? and were they intact or already a little broken/jagged ?

What's the rational behind hardcore anyway ?

 

[tomfe]

As long as your have enough depth either below or ontop and they are fully supported you wont have a problem.

did you try spacing the bricks out?

If you use bricks space them out and fill the gaps with 2" down.