posted 32 minutes ago
If that was my shed floor, I would use the methods suggested by John to get as much of the salt removed.
Then I would get some box fans, at least two to force air onto the floor from top to bottom to try to dry the floor out.
I feel once you get the floor completely dry, I bet that you will no longer have a problem.
Invasive plants are Earth's way of insisting we notice her medicines. Stephen Herrod Buhner
Everyone learns what works by learning what doesn't work. Stephen Herrod Buhner