If you find your patio, stone sidewalks or other stone and masonry surfaces in your house are spilled and splashed by mortar from a freshly laid brick wall, the most effecting way you can do to clean it is by sandblasting. How to sandblast may not an easy job, but this is a kind of project you can do it yourself. So, you can keep any stone surface in your house clean and beautiful by sandblasting.
Before sandblasting your masonry, you need to choose the gradation type you will use. When your masonry or surface is lightly soiled, you have to use type A gradation while type B gradation is used for heavy cleaning like removing mortar stains from brickwork. After choosing the gradation type, how to sandblast your masonry can be started by taping off all areas that will not be sandblasted using plastic sheeting and extra strength tape while making sure that all areas are covered completely and the tape is adhered securely to the surface. If you are sandblasting a brick wall which is recently mortared, you need to remove any large particles of mortar with hand tools like a metal scrapper hoe or rough edge of a brick. This is very important because you will damage the brick if chunks of mortar were to be removed alone by sand blasting.
When sandblasting, keep in mind to put on safety glasses and protective clothing such as long sleeves, long pants, gloves and a hood. Load the sand into its chamber and fit the sand blaster with a nozzle in a dimension of between 3/16 and 5/16 of an inch in diameter. Make sure to follow the manufacturer’s instructions and recommendations to use sand blaster. Test the sand blaster by cleaning a small area, sand blasting close to the wall and at various distances from the wall. You need to choose a cleaning distance that can best clean the brick without damaging. Those are some steps of how to sandblast that you can do to clean your masonry and keep it beautiful.