Think your wood had moisture in it,got really cold,moisture pushed out and froze.
Sounds reasonable?
Never thought about it but I think you are right. I always buy my firewood semidry from the same vendor and never had any problem before. I used to reserve it by August for October delivery but I forgot about it last August and when I called the vendor last October he was sold out.
So I got a new vendor and never saw such clean and neat cut firewood before and with no insects at all! Almost all logs were identical in size and quite heavy. I know nothing about firewood except one type which I happen to have one in my yard and it is softwood and used to get a lot of that from my old vendor. With the new vendor I had none of this softwood and all logs looked like their bark was identical, perhaps from same trees. Later I discovered that these clean logs were burning quite fast, perhaps my imagination?
So I assume the new logs were pressure washed and contained a lot of moisture and that’s why they were (are) so heavy and now stuck with ice.
As I mentioned in my first post, I always store the firewood at the same spot and we had before worst weather than we have now so it makes sense that the firewood had a lot of moisture in it and so it got stuck with ice.