Diagnostics and classification of soiling of sidewalk tiles
Sometimes it is enough just to wash it out of a hose, but there are cases when cleaning the paving slab will require considerable effort. First of all, it is necessary to understand what types of pollution are. The nature of the contamination can be very different, and this will depend on it than washing the paving slab.
Salt deposits or high - quite common phenomenon on the paving slab. Usually they appear for some time after its production. Tiles can be stained in cement as a result of installing curbs that are placed on the grout. Sometimes through the tile coating weeds grow, which leads to the formation of bumps and cracks.
Also paving tiles can be contaminated with engine oil, paint, chewing gum, tile glue, car tire tracks and so on. Cleaning paving tiles may require such tools and materials: a brush with a handle, a brush, a bucket, a garden hose with a sprayer, protective clothing, a set of cleaning products.
General principles of selecting methods for cleaning tiles
Before cleaning the paving slab, you need to determine the nature of the contamination. Clean the mold with tiles using bleach. After making a solution of bleach with water and putting on rubber gloves, apply the solution to the desired area with circular brush movements. It is necessary to leave it for a while, so that it reacts, and then washed away.
To remove excess oil from the surface, it is necessary to use carbonate-based cleaners or acid cleaners. To avoid repeated manifestations of salt deposits, it is necessary to treat the tile with a hydrophobizing liquid, which will give it antiseptic and dirt repellent properties.
And here weed control requires the use of herbicides. Just do not resort to such actions in your own country, because these substances will later be in the area of your beds, then you can wait for the crop with some doubts.
We deal with each spot separately
Before cleaning the paving slab from cement, all bulk materials must be removed from the surface. The frozen cement mortar can be removed with a hammer and a chisel. Then the metal brush needs to clean the remnants of the mortar as high as possible.
If this does not help, you can sand the problem area with coarse-grained sandpaper, that is, erase it to the tile itself. After this, it is required to wash the stain with a solution of hydrochloric acid, which will contribute to the detachment of the stain.
Phosphoric acid, neutralizers and trisodium phosphate is what can be wiped off the tile glue from the paving slab and give it a fresh look.
Fresh stains from diesel fuel or engine oil can be removed with absorbent materials such as sawdust or rags. Do not rub hard to not stretch the stain. Old stains can easily be cleaned with specialized household detergents and hot water. After cleaning, the oiled sand from the intertice joint should be replaced with a clean one.
To remove traces of car protectors, use hot water and detergents or hot steam .Chewing gum is eliminated with a metal scraper or spatula. Stains of paint from the surface of the tiles are removed first with a scraper, and then with detergents or a solution of hydrochloric acid.
Soot traces are easiest to remove using water and soap, or a mixture of detergent and bleach, if soapy solution did not help. After any cleaning of the paving slab, it is necessary to water it abundantly with water.