SHAPE * MERGEFORMAT Why is my Henri piece developing crumbling?
Based on where you are and when it was emptied, cleaned, dried & how the pieces were stored/covered ice damage is very likely the culprit. Water penetrates the porous structure of concrete. It requires time & temperature for this moisture to be released. If this is not done before the first frost it will show itself as by way of cracking or fully disintegrating.
