We clean the brick with our own hands from cement, concrete, plaster, efflorescence (4 ways)
Brick - the main material not only for building a house, but also fences and other structures. I have seen many times that many people reuse old bricks. Or they carry out the laying, and after that all the walls are covered with mortar.
It will be about cleaning bricks from dried cement mortar, glue, etc.
there is different ways. Cleaning depends on the type of material. In construction, they use: silicate, ordinary red and brick for decoration.
When cleaning white brick do not use chemicals. The brick then collapses.
Facing brick cleaned very gently. A chemical cleaning option is suitable here, since mechanical damage to the top layer and spoils the whole look.
1 way
There is an option for cleaning with a high pressure jet (sandblasting). It will help to eliminate the remains of cement mortar, oily, glue spots, metal corrosion, soot, efflorescence (salt formations, white bloom).
2 way
To clean bricks, they use attachments on a perforator: a chisel-chisel or a chisel in the form of a peak.
It is good to clean the seams with a lance nozzle. The main thing has been cleaned, now go through with a stiff brush. You can use a grinder, but the work will be noisy and dusty, although much faster.
3 way
By the way, about the grinder. Grinding wheels (brushes) for the grinder do not help. They wear off very quickly. The bowl brush deteriorates especially quickly. Diamond disc cleaning goes well and large pieces of cement are removed. But after it, seizures appear that require grinding.
A regular grinding disc on a grinder does a good job. Removes mortar on brick. Minus: very slow. The petal disc does better and faster.
It costs about 100 rubles apiece (grain 36 or 60).
4 way
Chemical method popular for its simplicity. For example, there is means Litoclean (1 kg. near RUB 500-700). It is an acidic cleaning powder for ceramic tiles. It will also perfectly clean brickwork from mortar.
First you need moisten the brick abundantly until it absorbs water. Then with an ordinary damp brush, dip it into the powder and apply to the places of contamination. The tool works instantly, starts to hiss.
Be sure to work with gloves! Avoid getting the product on the joints between the brickwork. A product without harmful vapors. They also praise a special agent for getting rid of cement residues "Cementin"(Costs about 200 rubles. for 1 liter). There are others.