I don't think so. It takes weeks for this cement to heal itself, whereas the sort of temperature swings that would cause very long pieces to crack happen in hou

I don't think so. It takes weeks for this cement to heal itself, whereas the sort of temperature swings that would cause very long pieces to crack happen in hours. You'd have frequent cracking and re-cracking without enough time to heal. I think this is better suited for damage from infrequent events (earthquakes, temperature swings from 10-year storms, human accident, etc.).