Is this soil compact enough?

[glider26]

Hello,

As part of a DIY project (steps to the house) I'm currently using an earth tamper (see pic) to compact subsoil on top of which I'll lay a 75-100mm layer of hardcore and then concrete flags on top of that (with a mortar joint between the hardcore and the flags). My question pertains to the subsoil which I'm currently trying to pack down. Some of it has been brought across from a different level and after compaction when I stand on it, I still sink into it somewhat. Is this normal or is it something to worry about?

 

[Ian H]

I’d say that’s normal, are you using a membrane between the soil and your hardcore?

 

[glider26]

I’d say that’s normal, are you using a membrane between the soil and your hardcore?

Thanks you. I wasn’t going to place a membrane as it’s subsoil below and to the sides I WILL place plastic edging. Should I though?

 

[Ian H]

I would but not essential.

 

[Munroast]

what are the bricks sitting on ?

 

[glider26]

what are the bricks sitting on ?

Concrete footings. My plan is to lay a 75mm layer of hard core on top of the soil, level with the brick work. Then mortar and flagstones on top of that.