What is the reason for the alkali reflux found in the rough room?

This may be due to the fact that the concrete was not dried in time during the construction process, and too much moisture seeped into the concrete, resulting in a serious relief situation.

It may be that the wall is too abnormal, it may be that the ventilation in the room is not enough, it may be that there is a problem with the structure, or it may be that there is a problem with the decoration materials.

It may have something to do with the indoor air, and moisture and moisture are often heavier, so this is the case.

Relative to hardcover rooms.

Because the rough house can be completely decorated and built according to their own ideas, it is loved by many second-hand house buyers; There are also many people who choose to buy a house for investment first, and then decorate it according to the situation. However, when people plan to renovate the rough house that has been sitting for several years, they are affected by anti-alkali from time to time.

Problems haunted. What is the reason for the alkali reflux in the blank room? What should be done to prevent the recurrence of alkali recurring?

Alkali resistance is one of the more common problems in houses, especially in air humidity.

In large areas, rough houses, rural self-built houses, etc., it is very easy to "be recruited". Specifically, the painted wall surface cracks and peels, and some "white hair" objects grow from the wall.

These "white hairs" are actually hydroxides, commonly known as bases. The main component of ordinary concrete is silicate.

This substance reacts easily under the action of water to form hydroxides. As soon as the temperature rises, hydroxides will precipitate out of the walls. Over time, this effect becomes more and more significant, destroying the paint or paint that has been previously painted, and then peeling off the wall skin.

The problem of antialkali itself is not particularly difficult to solve, the key is to investigate the cause of its occurrence. The appearance of alkali reflux often has a lot to do with moisture moisture.

If the local climate is already humid and the walls are close to the windows and balconies, it is likely that the rain is affected. Scrape the anti-alkali wall, brush the alkali depressant, and then re-do the wall, remember to do a good job of moisture-proof and close the window at any time after moving in, which can basically solve the problem.

Assuming that the weather is dry and the location of the alkali is not close to the door or the window, then it is necessary to observe more closely. Because it is likely to mean that the exterior wall is leaking, or the water pipe in the wall is leaking, or the neighbor's next door is leaking, if you can't solve the root problem of the leakage and just redo the wall, it is likely that it will not be long before it is re-alkalinized.

As long as the water leakage can be ruled out, and then pay attention to the precautions in daily life, anti-alkali can be done.

First of all, you need to use a shovel blade to shovel the anti-alkali position, and then use a wire brush to brush off all the floating ash. Then apply alkali disinfectant to the wall, taking care not to miss anything. After 24 hours, you can scrape the putty normally.

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For houses that have been anti-alkali, special attention needs to be paid to the specifications of the decoration work: for example, the wall waterproofing should be in place, and the wall material must be painted many times, and the second painting must be carried out after the first time it is dry. In addition, low-alkali building materials can also be selected, which can effectively reduce the possibility of re-alkali re-alkali.

After moving in, you should also pay attention to indoor ventilation, drying, and rainproofing.

This may be due to the long stay time, or it may be caused by the weather, a long period of rainy weather, so the wall will leak, and finally it will be alkaline.

It is likely that the environment is humid inside, or it may be due to problems with the materials used during construction, or it may be caused by leaking pipes or water seepage from the house.

It may be caused by the dampness of the house, or by unsuitable temperature and humidity, or by long-term weathering.

The billet room was found to be alkaline, what caused it? What are the remedies?

The environment is relatively humid, and the water vapor reacts with the silicate in the cement to form a saline and seep out. In coastal cities, some construction enterprises use sea sand instead of river sand for building construction, if the sea sand used to wipe the wall, and it is easy to reverse alkali phenomenon when encountering water vapor. Sometimes it's because someone has urinated on the wall, and the area on the wall that is contaminated with urine stains will also cause salinity.

Remedy: Remove the wall skin from the saline-alkali position, shovel off even the stucco layer, then brush the waterproof, replace the cement with the cement again, and mix the mortar for leveling.

<> remove the wall skin in the saline-alkali position, dilute it with oxalic acid, white vinegar or hydrochloric acid with water, use the solution to clean the wall surface of the saline-alkali part, neutralize the alkali with acid, clean it, dry it in the shade, and then re-mortar leveling. Nowadays, many people are buying a rough house, and then they can decorate it to their favorite look, and there are certain restrictions on hardcover houses. However, when decorating, many people will find that the phenomenon of anti-alkali in the rough house is generally manifested as the wall peeling and the wall has long "white hair".

So what is the reason for the alkali reversal of the blank room? How to remedy the alkali inversion of the blank room? How to prevent alkali reflux in the blank room?

Let's take a closer look.

The reason for the alkali reversal of the blank room is that the ordinary concrete is silicate, which reacts with the air or water vapor in the wall to form hydroxide (chemical properties are alkaline). When the temperature rises, the water vapor evaporates and the hydroxide is removed from the wall. As the water gradually evaporates, hydroxides precipitate on the surface of the concrete and accumulate over time, causing the originally decorative paint or coating to be jacked up and no longer adhere to the wall, and then peeling.

Anti-alkali remedy method of blank room, use a shovel blade to remove all the anti-alkali substances on the surface;

Then use a wire brush to remove all the alkali scale and floating ash on the surface; Brush the alkali depressant on the wall, taking care not to leave gaps; After waiting for 24 hours, you can operate the work of scraping putty and brushing latex paint, and then proceed according to the normal construction process. How to prevent the wall from being alkaline, the wall is waterproof, and the wall is very important to be waterproof, so whether the wall is in the construction process or during the stay, it is possible to encounter water and moisture, and there may be a situation of wall alkali resistance; When choosing decorative materials, low-alkali materials can be preferred, which can prevent anti-alkali on the wall to a certain extent.

The main reason for this situation may be that the rough house is damp or the upstairs leakage, which may lead to this situation, and then if you want to remedy, it is best to put some limestone or some charcoal in the wall to absorb the moisture vapor and do a good job of waterproofing.

Mainly because of the anti-alkali caused by moisture; The windows should be opened for ventilation in time and some better cement should be used.

This is most likely caused by water leakage, the upper floor of the ground waterproof is not good when decorating or water pipes or heating and so on run through the water leakage down, if the top floor is the roof waterproof is not good leakage. If there is a damp place or there is a leak on it, you should negotiate with the upstairs residents and the developer to find out the reason, and do not paint it if you don't do it well, otherwise it will be a waste of money.

The place has a short drying time, so I went out of anti-submarine when it was abnormal.

Summary. The main reason is that the cement product calcium hydroxide reacts with carbon dioxide in the atmosphere to generate calcium carbonate and deposit it on the surface of concrete products; Or: in a solution of calcium hydroxide, a hydration product, when the water evaporates, the calcium hydroxide crystallizes in the cracks of the concrete and gathers on its surface.

What is the reason for the alkali reflux found in the rough room?

The main reason is that the cement product calcium hydroxide reacts with the carbon dioxide chain in the atmosphere to generate calcium carbonate and deposit it on the surface of concrete products; Or: in the hydration product calcium hydroxide solution, when the water evaporates and the shed wheel, the calcium hydroxide crystallizes in the crevices of the mixed cherry trillium concrete and gathers on its surface.

That is, it is a common situation that occurs after a long time of cement.

Since the main reason for alkali is caused by dampness, the only way to deal with it thoroughly is to solve the source of water seepage, otherwise the indoor wall repair can only be a symptom rather than a cure.

The rough room was found to be alkali-resistant, what caused it? What are the remedies?

Hello, I'm Little Crispy. There are many reasons for alkali reversal in the rough house, generally speaking, the main reason may be the presence of chlorides, sulfates and oxides and other impurities in the structure of the house, which will react with the alkaline substances in the water and air, resulting in alkaline surface of the house. Remedial measures can be divided into pre-defibrillation preventive measures and ** sexual measures.

Preventive measures include: the use of chloride- and sulfate-free concrete and cement, the use of anti-rust, waterproof, mildew-proof, anti-corrosion coatings during the construction of houses; ** Sexual measures include: cleaning the damaged parts, then using alkaline substances (such as lime water) to remove alkali for the damaged parts, and cleaning the surface of the house with organic solvents.

1. Use a shovel to remove the alkali position of the wall, and then clean the wall hygiene, no dust and stains, and then keep the wall dry enough. 2. You can use a special wall separator to paint it on the treated wall. It needs to be applied 2 to 3 times, and each application needs to wait until the previous one is dry.

3. After brushing the release agent, wait for 24 hours for the source of the file, and then use putty paste to scrape the wall, pay attention to the construction thickness within the standard range, and do not miss the brush. Then wait for 5 hours to dry, and then use sandpaper to crack the wall and grind it out, usually more than twice.

Reasons for this problem:

1. The reason why the wall is alkaline is mainly because the calcium hydroxide inside the cement reacts with the carbon dioxide in the air, thus forming calcium carbonate, which is finally deposited on the wall and produces the phenomenon of alkali.

2. In the process of hydration, calcium hydroxide will be produced, and the substance is easy to crystallize in concrete, and then attach to the surface of the wall to form alkali.

3. In limestone materials, or sand for building houses, there will be an appropriate amount of soluble organic matter containing alkaline substances, which will appear on the surface of the concrete when it is easy to form hydroxides or alkali salts, and there will be alkali phenomenon.