We are backfilling a cast in place culvert with 6" minus material. It's mostly rock with some fines. No silt.
Is there an issue with frost? The temprature of material is -10C.
It's C. And the temprature for this week will be between -5 and -11C.
The gravel pit is one hour away and I am worried that it will get frozen by the time it gets to the site even if it's warm when it leaves the plant. As for heated box, we are looking into it. We haven't heard about...
We are about to start a culvert structure backfill in subzero temprature. The specification says the subgrade should not be frozen prior to backfilling and gravel for backfilling cannot be frozen either.
How do you keep the surface from freezing and how do you check the gravel for signs of frost?
