Hardcore for base...

[Screech20]

Hey guys,

I've finished shuttering for a concrete slab.

I planned on 4" hardcore, and 4" concrete.

I've now realised I've dug out too much soil. I've thought about chucking a load back in, but then I thought would it do any harm just having extra hardcore?
I've got a hell of a lot from the brick shed and slab that I broke up before.

I've noticed compacting the soil with the wacker plate doesn't really work, where it glides along the rubble rather nicely.

Cheers

 

[Blagard]

Do not backfill with excavated material, use hard core, and if you must use rubble initially, make sure you do an extra special job of filling voids and compacting thoroughly.