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No. No matter what kind of basement it is, it is waterproof when it is built.
Because the basement is under the pressure of rainwater, domestic water and groundwater, if it is not waterproofed, as long as there are cracks, water will flow into the basement due to pressure, and the basement may be flooded in serious cases.
During the rainy season, the basement becomes damp only because there is more moisture in the air, and the walls are condensed and damp. As long as there is more ventilation, it is fine.
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If the external waterproofing is canceled, it cannot be said that it will definitely leak.
Because building waterproofing is divided into several levels, generally speaking, the structural self-waterproofing and external waterproofing work together. First of all, the structure must have a self-waterproof function, and then play the role of double insurance through external waterproofing.
Therefore, if there is no external waterproofing, and then there is no problem with self-waterproofing, there will be no water leakage, but self-waterproofing is prone to cracks and other problems, which is easy to cause water leakage, so the building will generally set up an external waterproof to ensure that the department will leak.
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If I say that self-waterproofing will definitely leak when the time comes, will the manufacturers who make additives be very upset with me.
But the fact is that all self-waterproofing is okay locally, but on large buildings, a small settlement can cause cracks to leak. Therefore, a flexible waterproof layer is indispensable. Of course, if there is a structure that is self-waterproof, it will not leak.
Chongqing Litian waterproof.
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No, because hard waterproofing is easy to crack after being exposed to the sun, while flexible ones generally do not occur!!
Waterproof Portal" This is described in more detail!!
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We are a manufacturer of waterproof materials, and we have discussed many times about rigid waterproofing, and we all agree that the effect of impermeable concrete is very limited. It cannot resist waterproofing after cracks caused by foundation settlement, because rigid waterproofing does not have any ductility. It is highly recommended to do flexible waterproofing.
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We specialize in structural self-waterproofing underground works! Many projects are not made with flexible waterproofing, which can provide 25 years of free waterproof water protection!
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The basement is the load-bearing foundation part that bears all the load of the house and transfers the load to the soil layer, which is of great significance to the safety and service life of the house, and the basement itself also has a very important function. With the development of China's building technology, underground waterproofing technology has also made remarkable achievements, the materials used for underground waterproofing projects have developed from a few varieties to multi-type, multi-series pattern, basement waterproof structure has also developed from a single type in the past to the current material waterproofing and structural waterproofing, rigid and flexible materials combined with new types. At present, the typical waterproofing structures of basements that are widely used are:
a. Base: The plane is a concrete cushion, and the façade is a structural concrete wall or brick wall.
b. Cement mortar screed.
c. Waterproof layer: It is a membrane or coated waterproof layer, or it can be a composite of structural waterproof concrete and flexible waterproof layer.
d. Protective layer: the plane is fine stone concrete, and the façade is made of foamed polyethylene sheet or polystyrene foam board as a soft protective layer.
With the deepening of reform and opening up, China's urban construction has developed rapidly, and at the same time, with the progress of science and technology, the number of high-rise and super high-rise buildings is increasing, and the development and utilization of underground space such as attached basements has also attracted more and more attention. However, these basements are surrounded by water for a long time. The basement below the groundwater level is affected by the action of groundwater for a long time, and the osmotic pressure increases with the depth of burial, especially when the groundwater contains erosive media, the harm to the basement is greater, even if the basement is above the groundwater level, the groundwater will also cause harm to it through capillary action, and it will also be affected by non-groundwater factors such as atmospheric precipitation, water and sewer pipeline rupture and leakage.
It is of great significance to deeply analyze the causes of water leakage in the basement of the built house and put forward targeted treatment methods to reduce the leakage rate of the basement and completely solve the problem of basement water leakage.
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To do waterproofing, you need to do it on the front of the water.
Dig excellent permeable crystalline waterproof, you can do it yourself.
If the cement surface is waterproofed, use a super permeable waterproof guard to do waterproofing (if there are cracks, gaps and potholes on the cement surface, fill the complete with Meiding porcelain glue and then do waterproofing).
For the tile surface, first check whether the filling of the tile gap is complete (if the filling of the tile gap is incomplete, fill it with Meiding porcelain glue, and then use a stone tile waterproof guard to do waterproofing).
Exterior wall paint can be made waterproof with transparent waterproof repair adhesive.
The product will penetrate into the base layer and make the base layer waterproof. The product is recommended to be constructed in a dry place, the drier the base surface, the deeper the product can penetrate, if the base surface is full of moisture, high density, the material can not penetrate well. Regarding the principle of waterproof plugging, the source of water leakage is not blocked, and the water will only continue to penetrate into the wall, which will exist inside the wall for a long time, and will leak out from other parts of the wall when the water reaches a certain level.
The problem cannot be solved, and only by spraying waterproofing agent on the outside of the roof or exterior wall so that the water cannot penetrate into the wall and flow away can the problem be completely solved.
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The basement is waterproof because the water flows to a low place, and you must pay attention to it in case of flooding.
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If you don't do waterproofing, the water will seep into the wall foundation, so that the wall foundation is not so strong. zgr
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The basement is prone to water seepage, and according to the principle of water letting the ground flow, water is easy to seep into the wall, which will affect the service life of the house.
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If you don't do waterproofing, wait for the water to go to the basement, and then wait for the water to rise.
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If you don't do waterproofing, water will seep into the walls, and the whole house will be in danger.
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Think about the principle of well water springs. The basement is prone to water accumulation.
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The floor and walls of the basement are mostly in direct contact with damp rocks or soil, and the backwater waterproofing process is generally adopted. Most of the traditional waterproof materials (such as membranes and coatings) are petrochemical products, which cannot be well bonded with the base surface to form a whole, and suffer from groundwater pressure and immersion for a long time, which can easily lead to the separation of the waterproof layer from the base surface and the falling off of the layer, causing water leakage.
Basement waterproofing belongs to the backwater waterproofing, it is recommended that it is best not to use membranes and waterproof coatings, it is best to use mortar waterproofing agent, and it is necessary to do waterproofing on all four walls and ground.
Make the floor 2 cm thick and the wall 1 cm thick. The thickness of the mortar waterproofing is proportional to the waterproof effect, so it can be appropriately thickened, but the thickness cannot be lower than the standard thickness. If the air humidity is relatively high, you can press one in the basement to exhaust the moisture, which will be better. )
Membrane and waterproof coating are more suitable for waterproofing of the water surface, if you do the basement, there is water leaching out, it will not play any role, but will make the entire waterproof layer layer, lose the waterproof effect.
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Answer: The basement must be waterproof, basically any part of the basement must be waterproof and plugged, and waterproof plugging is very important, because the underground is relatively wet, and the humidity is heavy, and there is no sunlight, the basement is basically unusable if it is not waterproof.
After the protective wall is fully built, then the membrane is spread on the protective wall and the bottom plate cushion, and the waterproof layer is all done, and then the concrete of the enclosure structure is poured. The only disadvantage of this method is that the construction conditions are limited, and it is a waterproof construction method that has to be adopted.
You can ask the construction staff about this, they will be more professional.
1) After the gluing of the coil and the base layer is basically dry (the hand touch is not sticky.
What are the steps to build a house.
The first step in building a house is to lay the foundation of the house, because the foundation plays a very crucial role. If the foundation is not stable, the house may sink later, and we also need to prepare design drawings.
2. The second step is to lay the foundation to pour the ground beam, which is also very critical, because the house is not stable, and the ground beam plays a decisive role.
3. The third step is to build the wall and build the basic structure of the house, which will take a long time before and after.
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Regarding whether basement waterproofing is a must, I am very sure to tell you that it must be done. So why do you have to do it? First of all, the basement is located below the ground, if you do not waterproof the basement, in the rainy season, it will inevitably be invaded by rainwater, resulting in water seepage, dampness, mold and other phenomena in the basement, so that your basement can not be placed and used.
Therefore, in order to have a better environment for the basement to make better use in the future, it is recommended that you must thoroughly do a waterproof, moisture-proof and mildew-proof treatment for the basement, and it is recommended that you should find a better likeTongji microcrystallineIn this way, the construction of an integrated enterprise to do, which not only ensures the quality of construction, but also ensures that your basement is in a permanently dry environment.
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Is it a villa, you still have to provide detailed structure and leakage water, so that I can make targeted suggestions, more information, better advice, free concrete waterproofing and leakage water repair technical advice, to avoid today's repair, tomorrow's leakage, every year repair, every year leakage troubles.
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The groundwater level is below the elevation of the basement floor all the year round, and the water will not directly soak into the room, and the wall and floor are only affected by the moisture in the soil. When the groundwater level is higher than the basement floor, the basement floor and part of the exterior wall will be immersed in water, and the water will seep into the room, and there is a certain pressure on the wall and the floor, at this time, the basement should be waterproofed. The characteristics of the moisture-proof method are to smear cement mortar on the outside of the vertical wall, apply a cold base oil, two hot asphalt, have groundwater invasion in the lower part of the brick wall and concrete, and lay a horizontal moisture-proof layer at the same elevation of the ground to prevent moisture in the soil from filling 2::along the outside of the rising wall of the brick wall masonry due to capillary action
8 Dust. If the wall is a concrete slab wall, the waterproofing method is to wrap the membrane waterproof layer on the outside of the brick wall and the reinforced concrete slab foundation; And on the outside of the vertical wall, the waterproof layer is pressed with a brick protective wall. to prevent the waterproof layer from being damaged!
1. What is the construction method of basement moisture-proof treatment? The construction method of moisture-proof treatment is usually: first, apply a 20mm thick 1: on the outer surface of the basement wall
2. Waterproof mortar, the basement wall should be made of cement mortar masonry, and the ash joints must be full; And the basement floor and the first floor are divided into two wall horizontal moisture-proof layers. The outer perimeter of the basement wall should be backfilled with soil with poor permeability in layers. 2. Under what circumstances should the waterproofing treatment of the basement be considered?
What are the two forms of membrane waterproofing? How waterproof is it? When the design maximum groundwater level is higher than the top surface of the basement floor, waterproofing must be done.
Due to the good waterproof effect of external waterproofing, it is widely used. Internal waterproofing is generally used for repair works. 3. What is the construction method of membrane waterproofing?
During the construction of membrane waterproofing, the waterproofing of the basement floor should be done first, and then the membrane should be continuously pasted to the outer surface of the wall along the basement floor. Basement floor waterproofing begins with a C10 concrete cushion poured on the substrate with a thickness of about 100mm. Then paste the coil and rub 20 thick 1:
3. Cement mortar, and finally pour the reinforced concrete bottom plate. The outer surface of the wall is first smeared with 20mm thick 1:3 cement mortar, cold base oil, and then pasted with coil, the paste of the coil should be staggered, and the lap width of the adjacent coil is not less than 100mm.
The top part of the membrane should be about 500mm higher than the highest water level, and a half-brick parapet wall should be built on the outside. 4. When the bottom plate and wall of the basement are made of reinforced concrete, what measures can be taken to improve the waterproof performance? The first is aggregate graded concrete, which is to use aggregates with different grain warps for grading and improve the content of cement mortar in concrete, so that the mortar is filled between the aggregates, so as to block the water seepage path due to the non-compactness between the aggregates, and improve the waterproof performance; The second is the addition of concrete, which is to add aerated agent or compacting agent to the concrete to improve the impermeability.
How to do self-built basement waterproofing? How to protect against moisture?
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After the basement is waterproofed, it is best to do it to prevent moisture.
There are three causes of basement moisture:
During the rainy season in August, humid air cannot be discharged quickly after entering, and it encounters condensation caused by condensation of cold air from cold walls. Solution: Strengthen the exhaust air, install a dehumidifier and cooperate with the air conditioner to maintain a constant temperature.
2. In the rainy season, the rainwater enters the soil, the exterior wall of the building is waterproof and damaged, and the waterproof layer cannot play the function of water retention and water conduction. In the first floor or basement room, there is mold or wall skin. Workaround:
At this time, if the exterior wall is re-waterproofed, the project is relatively large. It is recommended to do a small area of moisture-proof treatment on the indoor watery wall and floor to block the water outside the wall. Especially in the north when the rainy season is short and the amount of water that penetrates into the soil is not large, it is a good auxiliary remedy.
3. Groundwater resources are abundant or the building is close to rivers and lakes, and there is a large area of shaded water on the basement wall 40-60cm from the ground, and there are water droplets or 1-5cm of seepage on the ground. The reason is that the waterproof layer of the building is constructed on the waterfront surface of the outer wall of the building, and the main role is to block and direct the hydrostatic water. The basement has been immersed in groundwater for many years, the groundwater is under pressure, the characteristics of the water are pervasive, and the joints of the waterproof layer only need to be a little leaky (improper selection of materials and the sense of responsibility of the workers ......).The waterproof layer just doesn't work.
And then due to the movement of the earth's crust and the settlement of the room, the "protective layer" wrapped outside the room is easily damaged. Maybe there was no problem in the first two years of construction, but as the water accumulated, the problem became apparent. Workaround:
The problem of moisture-proof is also a variety of mixed types, find a professional moisture-proof personnel to analyze the situation, and come up with a reasonable solution suitable for you.
Many people may not put the basement.
The construction of the construction is a serious matter, but in fact, in our lives, the first is the parking lot, and the second is that many supermarkets are built in the basement of the negative first floor. Therefore, the waterproofing project of the basement is very important. The basement is also a place where water seepage and leakage can occur, so extra attention should be paid during construction. >>>More
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