I'll be breaking up an 8 inch thick concrete slab to clear the oversite for my new porch.
The new porch will have 1M deep, 600mm wide foundations that I'm going to trench-fill with concrete, to just below ground level.
The breaking process will yield a lot of small bits of rubble that I'll use as hardcore for under the new floor, and a number of larger chunks. How small do these larger chunks need to be for it to be acceptable for me to throw them in the middle of my trench fill?
Thanks
Gary
The new porch will have 1M deep, 600mm wide foundations that I'm going to trench-fill with concrete, to just below ground level.
The breaking process will yield a lot of small bits of rubble that I'll use as hardcore for under the new floor, and a number of larger chunks. How small do these larger chunks need to be for it to be acceptable for me to throw them in the middle of my trench fill?
Thanks
Gary