Which stone materials need to be renovated?

1. In most cases, multiple types of work will be mixed in the construction of decoration works. The movement of a large number of personnel and materials or the corrosion of decoration materials will directly damage the paved stone floor. In serious cases, it will cause a large area of pollution and fail to meet the handover standard. Sometimes, because the craftsmanship of the paver is not perfect, the ground will be uneven or have scissors difference after the completion of the laying (the stone is uneven). At this time, stone materials need to be renovated.

2. After long-term use, even if the stone is properly maintained, it will lose its original decoration effect due to reasonable wear and tear; most of the secondary decoration will be replaced except for the old, but the stone floor generally does not need to be replaced at the same time, and only needs to choose relatively simple renovation treatment, it will get a new effect.

3. Jointless grinding means that in the adjacent gap of the laid stone slab, the special joint filling agent with the color similar to the stone slab is used to fill the gap, and then the professional machines and tools and technology are used to grind and polish. After being treated in this way, the stone slab will present a large and undivided stone aesthetic feeling. Most of the diseases of stone are from the stone adjacent gap, if the seamless treatment will greatly reduce the occurrence of various diseases of stone.

Stone renovation technology

1. Repair the damaged and middle seam sealant (seamless treatment): use electric tools to cut the original damaged surface and the middle seam of stone installation again, so as to minimize the gap width difference. Special marble glue shall be used to repair and make it as close to the color of stone as possible.

2. Cutting position grinding: use special cutting grinding plate to grind the cutting position to make it close to the stone level.

3. Grinding and polishing: it is appropriate to use water grinding plate to grind from coarse to fine, so that the ground is smooth and flat, and the stone grains are clear.

4. Protection: it is an advanced technology to make full use of special stone curing agent to penetrate into the stone and form a protective layer (water resisting layer), so as to achieve waterproof, antifouling, anti-corrosion and improve the anti weathering ability of stone.

5. Crystallization treatment: under the double action of special equipment heavy pressure and high temperature generated by friction with stone, crystal is arranged on the surface of stone through comprehensive physical and chemical reaction to form a clear, dense and hard protective layer, which plays the role of adding light and hardness to the surface of stone. This program is very important for today. Lay a good foundation for later maintenance.

Formation and treatment of stone rust spots

Rust spots are formed by oxidation of iron in stone materials. Iron, water and oxygen are the three factors that contribute to the formation of rust spots. According to the different response levels of rust spots, it can be divided into deep rust spots and surface rust spots.

Deep rust spot: many stone varieties contain a certain proportion of iron components. When these iron components are in full contact with water and oxygen, they will cause oxidation reaction and generate rust spots. Under the action of water, alkali in cement reacts with iron in stone, and rust spots will also form.

Rust spot on the surface: during the transportation, storage and installation of the stone, iron residues are left after the surface contacts with iron objects. These iron residues react with water and oxygen in the air to generate rust spots on the surface of the stone.

Treatment of stone rust

1. Try to avoid using acid cleaner to directly clean the rust spots on the stone surface, because some acid cleaners simply oxidize and reduce the rust spots, and the iron ions that are oxidized and reduced are still unstable, so it is easy to react with the water and oxygen in the air again to generate rust again, and will further expand the rust spot area with the flow of acid solution. This is why the rust spots will be removed more and more when the acid cleaner is used for rust removal.

2. When selecting rust remover, it is necessary to select products from manufacturers with good reputation and quality. A good rust remover is not only the composition of acid, but also an appropriate amount of additives to maintain the stability of iron ions in redox reaction. The rust spots treated by the rust remover can be kept for a long time even if no protective treatment is made.

3. Because the basic chemical composition of marble and granite is different, the main component of marble is calcium carbonate, which is alkaline; the main component of granite is silica, which is acid. Therefore, when choosing the rust remover, it is necessary to distinguish the marble rust remover and granite rust remover. Granite rust remover can never be used for the rust spot treatment of marble or granite.

4. When the rust spots on the surface of stone are treated, just apply the rust remover on the surface of stone evenly. It can also be treated by surface grinding and polishing; the treatment of deep rust spots is relatively complex, which requires a certain amount of dosage and reaction time, and sometimes it needs to be reused.

5. After rust remover construction, it is recommended to clean the stone with clean water. After drying, it is necessary to use high-quality stone curing agent for protection. Prevent the reoccurrence of oxidation stone beauty and nursing

Natural stone is still the most expensive building material. It is an important subject that should not be ignored to keep the stone as fresh and elegant as ever.

When you meet:

1. Today's stone laying is limited to the construction environment and technical difficulties, and cannot show the original overall style of stone.

2. The stone floor is often uneven due to site construction factors and warping of the stone itself.

3. Due to improper external force or perennial wear, the stone floor causes surface cracks, crystal peeling or pit wear.

4. There is white crystal on the surface of stone, which affects the brightness of stone, and it often occurs after removal.

5. The surface of stone is hydrolyzed by external iron or internal iron of stone, resulting in reddish brown rust spots on the surface of stone.

6. Partial yellowing of stone.

7. The color of some areas on the stone surface is deepened.

What should we do when we wait for all kinds of problems caused by one reason or another? We can solve all these problems one by one.

Stone beauty and care

I. stone seamless grinding

1. Function:

Consistent luster: seamless grinding can make stone luster consistent

Reduce the pathological changes: seamless grinding can effectively reduce the pathological changes of stone caused by sticking seam

Convenient maintenance: seamless grinding makes daily maintenance more convenient

Maintain health: seamless grinding effectively reduces the chance of bacteria hiding

2. Construction procedure:

Cutting → glue filling → leveling → water grinding (rough grinding, fine grinding) → polishing → mirror crystallization

II. Stone fall leveling

1. Function:

Reduce wear: the leveled floor can reduce wear caused by height difference.

Improve the brightness: the floor after the drop leveling can increase the overall consistency and brightness

Increase safety: the leveled floor can avoid safety problems caused by height difference

2. Construction procedure:

Leveling → water grinding → polishing

III. repair of stone holes and cracks

1. Function:

Restore beauty: the stone surface after repairing and beautifying can restore the original flatness and smoothness

Avoid spalling: the stone after repairing and beautifying can avoid crack expansion or spalling

Better maintenance: the repaired stone can make the daily maintenance easier

2. Construction procedure:

Clean the damaged surface → fill with seasoning → leveling → water grinding (coarse grinding and fine grinding) → polishing

IV. treatment of stone diseases

Baihua: in humid places or outdoors, it is often seen that there are white crystals on the stone surface, which affect the brightness of the stone, and they often appear again after removal, so the only way is to completely isolate the water.

Maintenance Tips:

◆ in case of Baihua, it should be removed immediately.

◆ stone materials shall be free of water seepage or moisture

◆ stone joints shall be free of damage and falling off.

◆ regular application of protective agent

Stone materials need to be protected before they are used for decoration.

Many people choose stone without protection. Some people (especially home decoration owners) don't understand it. Some people don't care.

This kind of consequence is very serious. It will not be long before stone pollution occurs if there is no brush protection.

In case of falling off of crystal on the surface, white, rust, yellow stain, anti alkali and salt evolution, etc.

These are called stone lesions.

Principle of stone lesions:

Most of the stone lesions are caused by the undissolved Cao pollution in cement, and CaO + H2O = Ca (OH) 2 calcium hydroxide dissolves in water.

In the form of ion, it penetrates into the surface through the pores of stone and reacts with CO2 in the air to generate water such as calcium carbonate crystal.

After evaporation, it will be white powder on the stone surface.

This is a complete alkaline pollution process, different stages will have different realization, but also have different pathological changes.

There is also a kind of pathological change due to the iron oxide pollution in the stone itself or the outside penetrating into the stone.

We call it rust yellow. (stone net)

The function of the protective agent is to lay a protective film on the stone surface to prevent the penetration of water, oil, acid and alkali ions.

The treatment of stone lesions is as follows:

1. Surround the water spots with towel Cotton and other water absorbent things

2. Pour in water to wet the stone

3. Add detergent and stir for 3-5 minutes to form a paste

4. The area of a layer of towel or film on the paste should be larger than the paste to prevent outflow

5 place for 3 – 12 hours

7 remove the paste after drying, wash it repeatedly with clear water, and prepare water absorbing tools to prevent water from flowing to other places.

8. The pH test paper is widely used to test the surface acidity and alkalinity. When it is neutral, it is allowed to stand for 1-2 hours and then washed repeatedly with clear water for several times.

In order to fully dissolve the acid and alkali substances in the stone, use the pH test paper to test. Until neutral is measured.

9 dry the water, bake with baking lamp and gas lamp for 24 hours, then place for 1-2 hours, and bake for another 24 hours. Just repeat this several times

10 apply high-strength penetrating protective agent as soon as possible, and brush at least twice

It can be used normally after 24 hours.

Note: the paste formed by the above water spot cleaner is acid and suitable for granite. If it is marble, weak acid shall be considered.