A natural habitat is an ecological or environmental area where a specific species lives. It is the place in nature that particular species calls home. To help picture what this means, think of a zoo.
Quick Answer. A mixture of vinegar and borax will kill most algae growing on bricks and concrete. Homeowners do not need harsh chemicals to get rid of these pesky growths.
A concrete densifier is a chemical applied to a concrete surface to make it harder by reacting with the uncured components in the concrete. Densifiers make the surface stronger, less permeable, more durable. They also reduce concrete dusting by reacting with components in the concrete creating a safer working and living environment. Densifying surfaces is an essential step in the grinding and polishing process. All abraded concrete surfaces should be densified for maximum protection.