Why the concrete floor of the bungalow always returns to the moisture

First, the reason for the resurgence.

Indoor moisture resurgence mainly occurs on the ground floor of the house. Generally, there are two reasons: one is that the humid air with high temperature (relative humidity above 90%) is easy to produce condensation on the ground when it encounters a low temperature and smooth ground that does not absorb water (generally when the temperature is about 2).

Most of these cases occur during the rainy season, when there is a lot of rain, high temperatures, and high humidity. Once the weather clears up and dries, the resurgence of moisture can be eliminated. The second is that the water in the foundation soil under the ground cushion rises through capillary action, and the vapor water penetrates upward, which makes the ground material wet and exacerbates the deterioration of the humidity situation of the whole room.

This tends to happen all year round and is difficult to deal with. In addition, there are reasons such as poor outdoor drainage and poor ventilation of the room. In most parts of the south, the surface layer is mostly clay and sub-clay.

The water level of the capillary pores can rise up to 2 meters in clay soils and up to 1 meter in sub-clays. When using building materials with poor compactness to make indoor flooring, it will enhance the capillary effect, and the phenomenon of ground moisture return is more serious.

2. Inspection and treatment of the retiring ground.

1.Examine. Check the ground for cracks first, which are the main channels for groundwater infiltration.

Cracks in cement mortar or whole-cast concrete floors with a width of more than millimeters are generally visible. Regular cracks usually appear longitudinally or transversely along the chamber and are formed by shrinkage and cracking of the material. Then check whether there is a hollow drum phenomenon on the ground, you can use a wooden stick to gently and vertically tap along the ground, if the sound of the knock is empty, there is a hollow drum there.

2.Treatment of cracks and hollows. For regular cracks, they should be chiseled into "V" shaped joints, cleaned in the joints, and closed with asphalt plaster.

If it can be baked with a flame to dry the cracks sufficiently, the effect is better. Generally, the hair is cracked and closed in a large area. Where there is a hollow drum, the surface layer should be knocked off, the cushion should be chiseled, a cement slurry should be brushed on the cushion, and then the same material as the surface layer should be repaired and leveled.

3.Moisture-proof treatment. After the cracks and hollows are partially treated, the surface layer should be fully moisture-proof and sealed.

The principle of treatment is to block the capillary seepage channel in cement mortar or concrete. Generally, the method of applying waterproof paint or waterproofing agent can be used. Before painting, the surface layer is chiseled, cleaned, and two coats of waterproof paint are applied.

The first application is applied so that it penetrates deep into the pores. After the first coating is dry (generally about 24 hours), it will be applied a second time to form an overall waterproof coating film. At the corner of the floor and the wall, the paint should be brushed to the height of the wall baseboard.

Artificially applied cement floors have large pores and are prone to cavities, similar to "sponges". If the temperature difference between day and night is too large, it is easy for moisture to seep out and condense into water droplets. In my house, there is always water on the ground, and there is more water in the potholes, so there is no way.

It shows that the local air humidity is high, and it tends to be saturated during the day, and when the temperature drops at night, it is closer, and the water vapor will condense into water when it encounters the ground with low temperature. It's not a problem with the house.

If it is, it is easy to regurgitate the soil of the old house when it is flipped.

Cement powdery hydraulic inorganic cementitious material, if the ground is damp, it means that your foundation is not solid. On the one hand, the foundation is not firm, which causes water storage in the stratum and causes a large area of dampness in the building surface. On the other hand, there is a water layer under the surface of the selected land, and the concrete ground is damp.

Solution, 1 can be coated with a layer of clay on the square cement floor, and then a thin layer of cement, which can solve the problem of moisture.

2. It is to open the window for ventilation, which is the most effective for squaring!

3. It is to choose the sunny side and open the window opening, which can effectively solve the cause of moisture in the cement. But the square is not recommended to use, and it costs a lot.

You've all said a good job! I feel that it has something to do with the level of the terrain?

Hehe! I have the same problem in my house!

There is lime in the cement, the lime absorbs water, the bungalow is directly grounded, and the water vapor is directly absorbed, so the water is large...

First of all, on the first floor, the ground will definitely be damp, and the concrete floor will not have the effect of moisture-proofing.

The moisture and temperature of the cement floor can heat or absorb moisture in the room.

The first thing to reduce moisture return is to warm up the room as soon as possible. Before the moisture returns, heat the room with an electric stove or gas stove to reduce the temperature difference between indoor and outdoor. Or put some hygroscopic substances indoors, which is more economical and ideal to be quicklime (lumpy lime).

Secondly, doors and windows should be closed to reduce the influx of moisture into the room. In addition, when the moisture resurgence occurs, the room air can be filtered by a dehumidifier to "dehydrate" and continue to heat the room. In addition, the degree of moisture return varies from place to place indoors.

The walls around it were the coldest, and the ground in the north house was also cold, and the resurgence was the worst. If there is a build-up of hot air near the top of the ceiling, it is relatively dry, and the favorable microclimate environment in the corner of the ceiling can be used to store the items that are most afraid of moisture and mildew.

Reasons for the resurgence of moisture:

The temperature is relatively high, and the air is humid, that is, when the relative humidity reaches more than 90%, then the air is pregnant with almost visible water vapor everywhere, it is easy to sink, after all, the weight of water is more than that in the air, and after sinking, it is easy to adsorb on the cement floor and condense into small water droplets, which will increase more and more after a period of accumulation, thus forming a large-scale humid situation.

On the cement floor in the living room of some old houses, because of the years, the overall cement floor has become a little dense and uncompact, so that it is easy to make the cement of the soil base layer through the holes of the cement, and begin to rise and penetrate upward, eventually causing the floor material to become damp.

Treatment method of moisture return on cement floor:

The first thing to do is to find out the cause of the dampness on the groundLook for cracks in the ground, which is the most common condition that causes the ground to regain moisture.

2. If there are cracks or hollow drums, just thatTo use cement mortar, etc. for fillingand apply waterproof paint on the surface layer to do a good job of waterproofing.

3. When applying waterproof coating, first brush the surface layer and clean it. The paint is generally brushed twice, and the first time must be dry before the construction can continue.

4. After the waterproofing treatment is completed, a new surface layer should be made, and cement materials can be selected or other materials can be selected. However, the moisture-proof performance must be good, so as to reduce the trouble in the future. When everything is done, open the windows to ventilate and make the room drier.

Causes of wet cement floors.

1. The humidity of the air is too large, or the groundwater evaporates too quickly, resulting in a lot of water attached to the ground. If this water does not evaporate for a long time, it will cause the ground to re-damp.

2. After spring, because the outside temperature rises relatively quickly, and the indoor temperature rises slowly, once the outdoor air enters the room, small water droplets will form on the ground, resulting in a resurgence of moisture on the ground.

The reason for the return of moisture on the ground of the house.

1. When the humid air with higher temperature meets the ground with low temperature and smooth and does not absorb water, it is easy to produce condensation on the ground, which mostly occurs in the rainy season (more rain, high temperature and high humidity).

2. The water in the foundation soil under the ground cushion rises through capillary action, and the vapor water penetrates upward, which makes the ground material moist and aggravates the deterioration of the humidity situation of the whole room.

Treatment of ground moisture return.

1. Use air conditioning to dehumidify. Air conditioners used in homes generally have the function of dehumidification, but the method of air conditioning to dispatch indoor air humidity is slow, generally takes two or three hours, and will make people in the room feel cold.

2. When the outside moisture is heavy, the doors and windows should be closed to prevent moisture and moisture. Usually open more windows for ventilation to reduce the indoor water vapor content. It is a new house that has just been renovated, and the water vapor is extraordinarily large, so it is necessary to ventilate more to keep the moisture **.

3. During the period of excessive indoor humidity, if you do not use a computer or TV, it is best to make a protective cover to prevent the rear of the electrical appliance from touching the humid air. These appliances should be turned on more often, and the heat generated when the machine is running can effectively repel moisture.

Fourth, usually clean the room frequently, moist to prevent, clean the corner of the ground clean and tidy, so that the wet, wet local scrubbing with a dry cloth.

First of all, the ground is haired, the ground is painted with cement-based waterproof material, and then the flour is flat with waterproof agent mixed with cement mortar. It is better to make the wall more than ten centimeters high.

What should I do if the floor wall gets wet? Teach you two small ways to keep your home dry and say goodbye to dampness.

Hello, you are talking about the lack of foundation height or poor drainage outside the house. If you are building your own house, you can make a 60 cm drip slope and drainage channel with cement around the exterior wall to completely improve the humidity of the room. If you are not building your own house, you can consider using quicklime packets to absorb the dampness of the floor of the room.

It is best not to place furniture too close to the wall, leaving a few centimeters of space for ventilation.

Hello, the treatment method of the water from the cement floor: First of all, it is necessary to find out the specific cause of the ground moisture return. Of course, if there are cracks or hollows, cement mortar should be used to fill them, and the surface layer can be brushed with waterproof paint.

But before brushing, the top layer is cleaned and the paint is usually brushed twice. Finally, after the waterproofing treatment is done, a new surface layer needs to be made. Wet cement floors generally have the following manifestations:

1. If there is some dampness, not all cement floors are wet, for example: the place at the door is not wet, but the corner or wall side will be significantly wetter. 2. Walls within 1m of the ground will also be damp.

3. It's not too wet when it's sunny, but it's even more humid when it rains continuously. What are the real reasons why the cement floor is easy to return to moisture 1. Poor ventilation: If the indoor ventilation conditions are poor, then the moisture will not be able to be smoothly discharged to the outdoors, and the cement floor will precipitate a large amount of moisture at this time, plus the cement floor itself is moisture-absorbing, like a sponge to absorb surface moisture, when it reaches a certain amount, the surface will be damp.

For example, in some small warehouses, when the roller shutter door is opened, the floor is not so wet. 2. The temperature difference between indoor and outdoor is large

Of course, if the hot and cold air replaces the moisture with a high moisture content, then after being adsorbed by the cement floor, the ground will also have a moisture resurgence. 3. The moisture in the ground is emitted: if it condenses into water on the cement floor, the ground is prone to moisture return.

The solution to the serious resurgence of the cement floor at home is as follows:Tools Raw material: lime. Desiccant.

Air conditioning. Dehumidifiers.

1. Open windows to strengthen ventilation. It can cause moisture to evaporate with the air.

2. Using a dehumidifier, the dehumidifier can quickly remove the moisture in the air. Keep the room dry.

3. Sprinkle some desiccant or put some dry lime bags in a humid area, which has a strong hygroscopic effect.

4. Do waterproof. In places where moisture is easy to resurge, the ground is usually relatively humid and easy to breed moisture, so we use waterproof methods to isolate water vapor and raise the ground, which can play a role in preventing moisture resurgence.

5. Turn on the air conditioner. It is set to the initial state, which can remove the humid air in the room. Effectively prevent the phenomenon of moisture resurgence.

6. In case of wet weather, especially Huangmei day.

, close the doors and windows of the home to prevent a large amount of moisture from entering.

Hello dear, the following measures need to be taken for the serious resurgence of the cement floor at home:1Eliminate moisture in your home:

Moisture is the main reason for the resurgence of moisture in the cement floor, so it is first necessary to find out the damp place indoors and eliminate the moisture. Opening windows for ventilation, using dehumidifiers, and maintaining indoor hygiene can all reduce indoor moisture. 2.

Treatment of cement floors: If the cement floor is severely damp, its surface needs to be treated. Surface moisture can be wiped or blotted dry with a clean, absorbent cloth or water absorber, or a fan or dehumidifier can be used to help dry.

3.Eliminate groundwater: If there are problems such as groundwater or rainwater leakage under the cement floor, they should be eliminated in time.

In basements, underground garages and other places, underground water pumps and other equipment can be used to pump the water away to achieve the purpose of discharging water from early sales. 4.Moisture-proof treatment.

For the case of serious moisture return on the cement land cover ground, a special moisture-proof agent can be used to deal with it. The moisture-proof agent can reduce the water absorption of the cement floor and form a moisture-proof layer, so as to achieve the purpose of reducing moisture return. It is necessary to select the appropriate moisture inhibitor according to the specific situation and use it according to the instructions.

5.Maintain the cement floor: The cement floor can be maintained regularly to keep it dry and clean.

Use a clean mop and detergent for cleaning, and after drying, you can use products such as floor wax for maintenance to reduce the likelihood of moisture re-dampness on the cement floor. To sum up, the above measures need to be taken to keep the indoor dry and the cement floor clean and moisture-proof treatment.