sounds like to me that either there was too much calcium chloride or there was a hot load slipped in
keeping it sprayed down with water will slow the cure but all that is cracked or scaled on will have to be cut out and replaced
i would remove the roof and then reset/ replace the blocks
if you wanted to make it more solid i would put rebar through the holes in the block and then fill the holes with block fill (a really wet mix of portland and sand
i like both wolverine and red wing
carhart has boots now ----herd they where made by redwing
i probally try them next
to me price is not a factor in workboots---got to keep the feet happy when earning the buck