ᐅ Which frost protection method is recommended under paved surfaces?
Created on: 2 Mar 2021 09:55
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NOmexHello everyone,
attached are two pictures of the frost protection layer that has already been laid on our future paving area. Is this frost protection size appropriate, or should I apply a "levelling layer" with smaller aggregate before the bedding?
I am concerned that with the larger aggregate, I won't achieve a smooth and even surface after compaction, and that the 3–5cm (1–2 inches) bedding layer might be too thin, causing the frost protection to protrude.
Regards,
Jörg
attached are two pictures of the frost protection layer that has already been laid on our future paving area. Is this frost protection size appropriate, or should I apply a "levelling layer" with smaller aggregate before the bedding?
I am concerned that with the larger aggregate, I won't achieve a smooth and even surface after compaction, and that the 3–5cm (1–2 inches) bedding layer might be too thin, causing the frost protection to protrude.
Regards,
Jörg
O
Osnabruecker2 Mar 2021 10:23Photos without scale cause a lot of confusion 😉
Next time, include a tape measure....
But if it's properly compacted, I don't see an issue with the grain size.
The grading curve concerns me more, especially the large coarse grains. Is this certified material?
How long has it been stored if grass is growing out of it?
Next time, include a tape measure....
But if it's properly compacted, I don't see an issue with the grain size.
The grading curve concerns me more, especially the large coarse grains. Is this certified material?
How long has it been stored if grass is growing out of it?
The frost protection layer has now been in place for about 2 years.
The grain size ranges from approximately 1 cm to 8 cm (0.4 inches to 3 inches).
I was thinking of compacting this frost protection layer thoroughly, then adding another layer of 0/32 frost protection on top, followed by another round of compaction.
What do you think about this approach?
The grain size ranges from approximately 1 cm to 8 cm (0.4 inches to 3 inches).
I was thinking of compacting this frost protection layer thoroughly, then adding another layer of 0/32 frost protection on top, followed by another round of compaction.
What do you think about this approach?
O
Osnabruecker2 Mar 2021 14:29How high do you need to go? About 10-15 cm (4-6 inches) of new frost-protected shallow foundation, followed by bedding and paving, and you’ll have many years of trouble-free use.
What do you mean by how high I need to go? My excavation contractor filled up to the top edge of the road with frost protection material back then.
That means I will have to excavate more anyway. So I thought I would go 10–15 cm (4–6 inches) further inward and refill that area with 0/32 frost protection material if necessary.
Unless this frost protection material would be sufficient as it is.
That means I will have to excavate more anyway. So I thought I would go 10–15 cm (4–6 inches) further inward and refill that area with 0/32 frost protection material if necessary.
Unless this frost protection material would be sufficient as it is.
O
Osnabruecker2 Mar 2021 14:52The paving and bedding are 12 cm (5 inches) thick.
So you would need to excavate 10–15 cm (4–6 inches) anyway, but you wouldn’t have any additional space left for a new FSS. You would then have to excavate even deeper.
Do you currently have the top edge of the FSS at the house level equal to the new top edge of the paving?
So you would need to excavate 10–15 cm (4–6 inches) anyway, but you wouldn’t have any additional space left for a new FSS. You would then have to excavate even deeper.
Do you currently have the top edge of the FSS at the house level equal to the new top edge of the paving?
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