Once mortar has been washed out of a bucket and allowed to dry, it generally poses little risk. However, there are a few considerations to keep in mind:
-
Chemical Composition: Mortar typically contains cement, sand, and water. Once it hardens, it is relatively inert. However, while it is still wet, it can contain compounds that are harmful (like silica dust when dry).
-
Environmental Impact: If the mortar was not properly disposed of and contains additives or chemicals, there may be environmental concerns. It is always best to follow local regulations regarding construction waste disposal.
-
Physical Safety: Dried mortar can form hard, sharp edges, so it could be a tripping hazard or cause injury if someone falls on it.
-
Weed Growth: Leaving mortar in your yard could create a substrate for weeds or unwanted plants to grow.
-
Placement: If you choose to leave it outside, consider placing it in an area where it won’t affect the natural environment or landscaping.
If the mortar is fully set and free from any toxic additives, it should be safe to leave it outside, but always err on the side of caution and check for local regulations or guidelines.