Are the black spots on my concrete mold?
I have black spots on my walk way that look like mold so, dose concrete get mold?
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It could just be algae. Try scrubbing with peroxide or concrete cleaner and a big broom
It's a cousin of mold. You can clean with vinegar and a scrub brush to remove. Then apply wet & forget outdoor to prevent in the future.
Mold forms wherever there is dampness and spores. Concrete is porous and mold only needs a small area to hold onto. I suspect that the area doesn't get a lot of sun.
Its a type of lichen a good power wash will clear it.