Which method is commonly used to clean surfaces after masonry work?

Chemical cleaning with acids is a common method used to clean surfaces after masonry work for several reasons. This technique helps remove efflorescence, dirt, paint, and other unwanted residues that may adhere to the surface of masonry materials like brick, concrete, or stone. The acids break down these contaminants, making it easier to wash them away, restoring the appearance of the masonry.

Moreover, the use of acids in cleaning is particularly effective for tough stains and residues that might not respond well to other cleaning methods. It is essential to apply these chemicals safely and in accordance with manufacturer guidelines, taking precautions to protect surrounding materials and follow environmental regulations.

Using power washing can sometimes be effective, but in many cases, it may not be enough to remove stubborn stains or residues and can potentially damage the surface if not done properly. Brushing with dry sand is less effective for deep cleaning purposes, and steam cleaning may also be less effective for certain types of residues on masonry surfaces compared to chemical cleaning with acids.