you cant get rid of a odor in concrete or other absorbent material
like wood or drywall.
all you can do is clean as best as you can, and seal the odor
outdoor poly is what the fire restoration companies use.
outdoor poly is prefered because it wouldnt soften in moisture, and
let the odor out again......
if the odor is bad clean the walls joists etc and use the outdoor poly
or kilz primer sealer
on everything in the area. walls floor, beams etc.
a smell ridden home can be made odor free if you follow these simple
works for urine, smoke and every other odor