After a long wait, we managed to get a detailed quote from a local excavation contractor (two other companies only provided very general prices per cubic meter; all are so busy that new projects are not attractive).
The earthworks, including piping, amount to over 34,000 € net. Demolition of a small garage and the old concrete driveway are also included, costing "only" 5,500 € net.
The company would crush the demolition material (concrete, bricks) to less than 70mm (2.8 inches) and reuse it on our property beneath the topsoil. If we have the material removed, it costs several thousand euros more.
The idea of having fill material beneath the soil makes me uneasy. However, I cannot think of any tangible, rational reason for this.
Or is there one? Could concrete or bricks contain harmful substances, for example?
Thank you for your thoughts on this!
The earthworks, including piping, amount to over 34,000 € net. Demolition of a small garage and the old concrete driveway are also included, costing "only" 5,500 € net.
The company would crush the demolition material (concrete, bricks) to less than 70mm (2.8 inches) and reuse it on our property beneath the topsoil. If we have the material removed, it costs several thousand euros more.
The idea of having fill material beneath the soil makes me uneasy. However, I cannot think of any tangible, rational reason for this.
Or is there one? Could concrete or bricks contain harmful substances, for example?
Thank you for your thoughts on this!
Construction rubble is tested in a laboratory before disposal.
The lower the classification,
the higher the disposal cost,
the fewer landfills available,
and the farther the landfill is located.
Construction debris should be crushed before being buried. I do not want to incorporate the larger chunks left by the excavator. Eventually, the shovel will hit those pieces.
We disposed of approximately 700 cubic meters (920 cubic yards).
We did not bury any small fragments.
The cesspit and old basements were filled with a compactable mineral mixture—about 100 cubic meters (130 cubic yards).
Renting a crusher would have been more expensive.
By the way, several companies advised us in 2016/2017 not to leave the material on the property.
The lower the classification,
the higher the disposal cost,
the fewer landfills available,
and the farther the landfill is located.
Construction debris should be crushed before being buried. I do not want to incorporate the larger chunks left by the excavator. Eventually, the shovel will hit those pieces.
We disposed of approximately 700 cubic meters (920 cubic yards).
We did not bury any small fragments.
The cesspit and old basements were filled with a compactable mineral mixture—about 100 cubic meters (130 cubic yards).
Renting a crusher would have been more expensive.
By the way, several companies advised us in 2016/2017 not to leave the material on the property.
About 50% for us. It could have been more than double that.
We could still dispose of it at the regular landfill. Cow barn, half-timbered house, post-war construction mistakes.
Do you need the filler material?
Will it be shredded (I can’t imagine that for such a small quantity)?
Do you want the unevenness in the garden?
Does it bother you that frost might eventually push the chunks, like stones, to the surface?
Does it bother you if pieces of wire or similar things appear?
We could still dispose of it at the regular landfill. Cow barn, half-timbered house, post-war construction mistakes.
Do you need the filler material?
Will it be shredded (I can’t imagine that for such a small quantity)?
Do you want the unevenness in the garden?
Does it bother you that frost might eventually push the chunks, like stones, to the surface?
Does it bother you if pieces of wire or similar things appear?
Oops, my sentence wasn’t finished! I meant to say that disposal costs about 30% more than installation in our case.
The company would crush the demolition debris (concrete, bricks) to pieces smaller than 70mm (2.8 inches) and reuse it on our property, just below the topsoil. So this would be about 20 to 25 cm (8 to 10 inches) beneath the surface.
The chunks would still be acceptable, at least in my vague imagination...
But: is it only my assumption? And more importantly:
can concrete and bricks carry loads?
This earthworks contractor would recycle everything because we need to raise the ground level by about 30 to 40 cm (12 to 16 inches) over an area of roughly 400 m² (4,300 sq ft). Another person suggested we shouldn’t even reuse our own soil. Both are local and know the ground conditions quite well. These differing opinions leave us quite puzzled.
The company would crush the demolition debris (concrete, bricks) to pieces smaller than 70mm (2.8 inches) and reuse it on our property, just below the topsoil. So this would be about 20 to 25 cm (8 to 10 inches) beneath the surface.
The chunks would still be acceptable, at least in my vague imagination...
But: is it only my assumption? And more importantly:
can concrete and bricks carry loads?
This earthworks contractor would recycle everything because we need to raise the ground level by about 30 to 40 cm (12 to 16 inches) over an area of roughly 400 m² (4,300 sq ft). Another person suggested we shouldn’t even reuse our own soil. Both are local and know the ground conditions quite well. These differing opinions leave us quite puzzled.
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