The other reason why keeping liquid from absorbing into concrete is important is because it puts stress on the concrete leading to cracking.
Black spots on concrete wall.
Mold might look like black spots or areas that have turned green.
Discoloration issues on new concrete.
Black mold is a fungi that has a green and black color.
This article provides a catalog of types of stains found on concrete surfaces.
Mold thrives in the presence of high humidity warmth and organic matter on which it feeds.
Also known as strachybotrys atra black mold can grow on just about anything including concrete.
It s always warm enough in your home for mold to grow even in the cold basement and household dust carries enough organic matter to feed it.
It thrives in areas that are damp shaded and have moderate temperatures.
The combination of substances become darker as layers of dirt accumulate on top of the stain.
Because you ll be using bleach indoors open a window and escape the fumes when possible.
Concrete discoloration comes in the form of dark spots stripes blotchy areas and color differences.
Some mold is white but can be confused with efflorescence which is a salty film on the concrete.
Methos for removing un wanted discoloration or stains from concrete.
And don t panic concrete stains are a part of life so no one expects it to look flawless forever.
Black mold on concrete in basement.
Concrete discoloration dark spots stripes and blotchy concrete.
When removing a black stain from concrete it is important to completely remove the stain s multiple layers to keep new dirt and debris from reattaching to.
Keep the concrete dry to prevent black mold from forming in the first place.
Final thoughts if the above stain removal measures don t work contact a professional.
Black stains on concrete consist of layers of dirt and oil chemicals ink or other substances.
Stains colors or discoloration on concrete surfaces.
Walls floors ceilings including un wanted stains from various causes deliberate concrete coloring processes stains or acid treatments.
If the white substance dissolves easily with water it is likely the latter.
There are many causes of discoloration on a concrete surfaces and the solution will vary depending on the cause.