What is the reason for the serious alkali return in rural construction? How to solve it? How to avoi

What is the reason for the serious alkali return in rural construction? How to solve it? How to avoid it?

The cement yellow sand is alkaline; Rural construction of houses, cement yellow sand is a necessary raw material, but the market to produce concrete, river sand companies are uneven, some concrete contains a very large alkali, at that time with river sand, water mixed with the situation, can not be found at all, but when the concrete is applied to the wall, it will gradually seep out from the wall, leaving a white chemical substance on the wall, that is the alkali, if there is a toilet or restaurant kitchen on the mezzanine, the more serious the alkali. If the wall itself is a problem, first look for which part of the wall, and then shave the exposed wall, dry or wait for dryness, wipe a layer of hydrochloric acid, shave off again after the hydrochloric acid is dry, observe for a day or two, the wall is not wet and cold, then you can directly repair the wall, because the red bricks are more alkaline, so the countryside has basically not applied red bricks to build walls in recent years.

The roadbed avoids ditches; When building a house and choosing a roadbed, you must avoid the area of the ditch in the village, even if the ditch is smoothed and widened, because every ditch in the village is the lowest terrain, as long as the rainy day opportunity gathers here, the precipitation will seep into the room according to the roadbed and the wall, and then produce an anti-alkali situation. Cement yellow sand to buy genuine; When building a house, we must buy cement yellow sand from reliable manufacturers, can not set the map cheap and the gains outweigh the losses, there are some bad businesses using sea sand fake river sand, not only the anti-alkali situation is more serious, and the salt in the sea sand will erode the building steel bar, resulting in safety risks for the residence, and the mixed water body is best pumped from underground, river water, rivers are not recommended to apply.

Ensure that the wall is dry and re-plating; In the case of the house wall, it is not necessary to urgently brush the wall in order to catch up with the construction period, but to wait for the wall to dry out before wiping, and at the same time to do a waterproof treatment for the partition is the bathroom, restaurant kitchen, and bottom end, so as to prevent the anti-alkali situation to the greatest extent.

This is due to the fact that the house was not built to protect against water and moisture, and the walls were not treated and the weather was not prevented. You can paint the walls with some waterproof paint or moisture-proof paint.

This is due to the fact that the material used is not particularly good, so this situation will occur, and it is necessary to choose a special material and reapply it. When treating the wall, you should clean it first, and then choose a better paint to avoid this problem.

Rural construction, if the room is more serious, indicating that the rural climate is more humid, in this case should pay attention to the use of moisture-proof, waterproof materials, it is recommended to choose real stone paint.

It is due to the fact that there were no good materials at the time of construction. It is necessary to pay attention to the process of decoration, the protection of the wall, the waterproof, and the moisture-proof.

The alkali return of the building house is serious, mainly due to the moisture of the wall, or the alkalinity of the wall material itself, or the mineral salt is very large.

Because of the problems with the materials used in rural construction, the alkalinity of cement and yellow sand is also due to economic conditions. Good materials should be selected to build a house, and it is necessary to understand the phenomenon of anti-alkali, make an analysis of it, and solve this problem from the root.

Because the alkali content of the cement selected for rural construction exceeds the standard, it is necessary to choose cement with low alkali content to build a house when building a house, so as to avoid the serious phenomenon of the room.

Because the water quality in rural areas is relatively poor and contains a large amount of alkaline substances, the alkali resistance is serious, and water purifiers should be installed to avoid this problem.

The foundation is relatively wet, and there are generally more rural fields, and the environment is relatively humid. Do a good job of waterproofing, and don't soak the foundation in water.

Preface: We can observe the houses in the surrounding countryside and find that after a few years of construction, the wall will appear white crystalline substance, which is the anti-alkali of the wall. With the increase of complexity and simplicity, if you don't pay attention to it, there will be a large amount of wall surface area falling off, which will seriously affect the service life of the house, so why does this happen?

Let's share with you why. <>

When many people build a house in the countryside, they first lay a foundation under the ground, and then build a wall directly on the foundation. Therefore, in the end, part of the brick wall is buried in the soil, and the brick wall is directly connected to the soil, and the moisture in the soil is easy to enter, and the situation of anti-alkali slowly appears. This situation is also very easy to identify, if you find that the root of the wall is very serious and there is a damp situation, this is the reason.

If we do not control the materials well during the construction process, then there may also be a reverse alkali situation of the wall. If the bricks used to build the house have been soaked in rainwater, because there is a lot of alkaline substances in the rainwater to build these bricks into the wall, it will eventually cause the wall to slowly appear alkaline. This will only get worse over time.

This can also happen if the water is too alkaline when building a house, and water from a well or river is used. This requires that you need to pay attention to the bricks and water in the process of building a house. <>

When building a house, if you encounter a rainy day, when the wall is not dry, you will directly start the plastering operation, which is very easy to cause alkali. When we build a house, we must wait for the wall to dry completely before proceeding to the next step, which can prevent the wall from returning to alkali to a certain extent. If the situation is more urgent, we can brush a layer of oxalic acid on the surface of the wall, which can neutralize the alkaline substance before applying.

This is because there was no careful investigation at the time of construction. This serious situation occurs because the relevant factors are not taken into account when building houses in rural areas, and the corresponding surveys are not carried out, the surrounding environment is not investigated, and the temperature in the rural areas is not taken into account.

This is because of the topography of the countryside, precipitation often occurs, coupled with relatively humidity, and it may also be because the foundation is unstable, and finally it is easy to reverse alkali.

This is because of the reason for building houses, and the construction of houses in rural areas is not so professional, so this situation will occur, and it may also be caused by geological reasons.

Because the foundation of the foundation is not very good, and the dampness situation is more serious. It may be because the quality of the bricks is not very good, or there is alkali content in the cement sand, or it may be that there is a situation of water mixing.

This is because the foundation is relatively low, and the climate of this place is also affected, and the materials used in the houses are not particularly good, so this situation occurs.

In fact, it is brick anti-alkali, which has nothing to do with anything else.

Wall backlash is also common, especially in our self-built rural houses. As in many self-built houses in rural areas, it was found that a few years after completion, a white crystalline substance appeared in the lower or even upper part of the wall, which was the alkalizing of the wall. With the increase of the alkalinization degree of the wall, there will be a large area of falling off the surface of the wall, which seriously affects the normal service life of the wall.

So why does alkaline reflux occur on the walls.

There are many reasons for <> alkali resistance on the surface of the wall: the alkali on the surface of the wall is mainly due to the poor compactness of the material itself, which makes the surface of the wall easy to absorb water and fall off. If the alkali resistance of the wall has just begun to appear, and the area is not particularly large, the surface of the wall will fall off in a large area, which will seriously affect the normal service life of the wall.

So why does alkaline reflux occur on the walls. There are some simple ways to deal with it. The alkali-proof place on the wall can be cleaned with water.

In combination with surface contamination of the material during use, regular cleaning can be carried out with a percentage oxalic acid solution.

In rural areas, alkali prevention on the walls of self-built houses is more common. In fact, this is true not only in rural areas, but also in cities. Low-growth users will more or less face this problem, especially old houses.

So, how is the alkali-proof house done and what causes it? How to avoid and solve? To this end, Xiongbian specially consulted Master Fu, and then asked Master Fu to teach you how to solve the housing problem.

Why is anti-alkaline rural housing serious? In fact, not only in rural areas, but also in cities. City, low-level users will face this problem to a greater or lesser extent.

In fact, the main reason for the alkali resistance of the wall is the dampness of the wall. Why is the problem of alkali prevention in rural housing serious? As for how to avoid it, just pay attention to buying red bricks.

Also, when you buy red bricks, don't buy clay mortar stone red bricks. If the red bricks contain mortar stone, the red bricks will break when they see water when the wall is built (because the mortar stone burns faster when it burns at high temperatures, and the obstacle expands when it sees water).

You can use some soil methods to keep the wall dry, and pay attention to hygiene.

This requires a certain amount of relevant knowledge and a certain amount of scientific methods.

This should be handled by some professionals, otherwise it will be very serious.

This can be dealt with in consultation with relevant experts, and the reasons for this situation are not very different in each place.

(4) Strengthen the base layer.

If the wall is peeling and peeling on a large scale, the first thing to think about is whether there is a problem with the bottom layer of the wall. During construction, it is necessary to re-reinforce the base with Gordon Refresh Wall Reinforcement, and then we will take a series of steps such as plaster leveling, applying mesh cloth, brushing primer and painting.

5) Dispose of old walls.

If it is a partial peeling, then remove the peeling part and re-scrape the putty in a small area. However, if there is extensive peeling, then it is necessary to remove all the flaking parts and scrape the putty again. The former may have the problem of color difference, while the latter has a relatively large amount of work.

I hope to give it a thumbs up.

Waterproofing can be done on the walls of bathrooms and kitchens or waterproof mortar can be used when painting to reduce the invasion of excessive moisture into the wall after the finished product; Alternatively, there is no horizontal vapor barrier, or the ground ring beam can be raised above the indoor floor to replace the horizontal moisture barrier.

If the area is small, you can shovel him yourself and make up for it, if the area is large, you can only find the decoration team.

When the ground is alkalinized, the alkali part can be removed with a shovel, then soaked in water for maintenance, and then dried with sand to lay cement.

In fact, not only in rural areas, but also in cities, low-rise users will face this problem to a greater or lesser extent, especially the old houses. So, how is the house anti-alkali formed, and what causes it? And how to avoid and solve it?

For this reason, I specially consulted an experienced master, and then let the master teach you how to solve the problem of anti-alkali in the house.

First of all, the anti-alkali of the wall of rural building is commonly known as cement frosting, and the main reason for cement frosting 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. Generally speaking, the most used building material for self-built houses in rural areas is still red brick. Red bricks need to absorb a lot of water to increase the viscosity of bricks and cement when they are used.

After the decoration is completed, the red bricks in the wall are often not completely dry, resulting in the phenomenon of "wall anti-alkali". In addition, there may be a reason why the cement mortar contains more alkali, and we know that most of the cement mortar built in rural areas is manually mixed.

And this has caused that the ratio is not accurate, and in order to facilitate the master's stucco operation, it will be appropriate to add some water-retaining mortar to the cement mortar, so the problem comes, the alkali content in the mortar king is very heavy, so it is easy to return to moisture when it rains or leaks, causing the wall to return to alkali yellowing and even the wall skin to fall off. So, how to avoid and solve it? We can remove all the parts of the wall that return to alkali, and use a certain concentration of oxalic acid solution to add warm water to mix.

Then, evenly brush on the wall, which can neutralize the alkalinity of the wall, and wait for the solution to dry before continuing to repair and paint the wall, so that it can be completely solved. Of course, if the wall only has a surface alkali return, this kind of problem is to use a certain proportion of oxalic acid solution for cleaning. If you want to avoid this phenomenon during the decoration process, you can seal the wall with a water-based sealing primer before applying the topcoat, which can prevent alkali reflux, but the effect is better with a sealing primer.

Learned? I hope that if you are decorating, or you are going to decorate, you must avoid this kind of thing before construction, so as to prevent the impact on your life after moving in.

In fact, the main reason for the serious anti-alkali in rural houses is because the humidity in the air is too high. There is also the fact that some of the materials used are substandard or even pirated. If you want to avoid it, you must choose the best materials.

Not only in rural areas, but also in the middle and low floors of cities, mainly because of the dampness, and it is better to build houses in summer, because the temperature is higher than in other seasons, and the record of alkali reversal will be greatly reduced.